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  • Why does my Mac always crash when I enable `ask for password after screensaver ended`?

    - by Koning Baard XIV
    I have enabled these two things: Placing the mouse-pointer in the bottom-left corner of any display makes the screensaver appear After the screensaver or stand-by has ended, ask for password However, this combination always leads to this (Black Screen of Death) after entering the screensaver with the bottom-left corner: Here are my system specs: Hardware Overview: Model Name: iMac Model Identifier: iMac9,1 Processor Name: Intel Core 2 Duo Processor Speed: 2,66 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 6 MB Memory: 2 GB Bus Speed: 1,07 GHz Boot ROM Version: IM91.008D.B08 SMC Version (system): 1.44f0 Serial Number (system): W89171JF0TF Hardware UUID: 323A90F0-8A2F-5057-B501-2087489E0DFF System Software Overview: System Version: Mac OS X 10.6.3 (10D573) Kernel Version: Darwin 10.3.0 Boot Volume: Macintosh HD Boot Mode: Normal Computer Name: YOU SHOULD NOT KNOW THIS User Name: YOU SHOULD NOT KNOW THIS Secure Virtual Memory: Not Enabled 64-bit Kernel and Extensions: No Time since boot: 11:46 Can anyone help me? Thanks

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  • Linux Router - Share bandwidth per IPs with current active connections

    - by SRoe
    We have a Linux machine running as a custom router, currently utilising Shorewall. This sits between our incoming internet connection and the internal LAN. What we would like to achieve is 'fair use' of the bandwidth on a per IP basis. If only one person currently has an active connection then they get 100% utilisation of the line. However if 20 people have active connections then they should each get 5% utilisation of the line. This should be irrespective of the number of connections held by each user. For example, say we have two users, Bill and Ted, that both have active connections. Bill has a single active connection while Ted has ten active connections. Bill should get 50% utilisation for his single connections whilst Ted should get 5% utilisation for each of his ten connections, giving Ted a total utilisation of 50%.

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  • How come string.maketrans does not work in Python 3.1?

    - by ShaChris23
    I'm a Python newbie. How come this doesn't work in Python 3.1? from string import maketrans # Required to call maketrans function. intab = "aeiou" outtab = "12345" trantab = maketrans(intab, outtab) str = "this is string example....wow!!!"; print str.translate(trantab); When I executed the above code, I get the following instead: Traceback (most recent call last): File "<pyshell#119>", line 1, in <module> transtab = maketrans(intab, outtab) File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/string.py", line 60, in maketrans raise TypeError("maketrans arguments must be bytes objects") TypeError: maketrans arguments must be bytes objects What does "must be bytes objects" mean? Could anyone please help post a working code for Python 3.1 if it's possible?

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  • Changing value of a Numeric Stepper

    - by REDDY
    Hi, I am a newbie to Flex and programming. I am trying something where I have 2 Numeric Steppers. One numeric stepper holds values from 0-230 and the other from 0.00-0.99. My question is how to change the value of the first numeric stepper when the second numeric stepper goes from 0.99 to 0.00. Suppose the first numeric stepper has a value 10 and the second numeric stepper is being incremented continuously. As it reaches 0.99 and on mouse up on the up arrow, 10 should change to 11 and this numeric stepper goes to 0.00. Could anyone help me out with some code or suggestion? Thanks is advance, REDDY

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  • How to edit screen grabbed video on Windows XP?

    - by tangens
    Problem I've used CamStudio to record a presentation (fullscreen, 1280x1024, 45 min, no audio) to a small number of AVI files (10 files with about 800 MB total). Now I want to remove the initial and trailer sequences where you see start and stop of CamStudio. I'd like to remove some pauses during the video, too. Question Could you recommend some programs for Windows XP that I can use for this task? The result should be a (small - at least not bigger than the original) video format that I can play back. I've no need to create a DVD etc. Already tried I already tried MAGIX Video Deluxe 16 (Trial Version), but it takes about 2 hours to just export 10 minutes of the video and produces about 2 GB of data for this.

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  • Tips on deploying Ror

    - by notnoop
    How can I go about deploying a Rails app on a cluster of Amazon EC2 servers? Any recommended guides? I maintain a RoR app (currently hosted on Heroku) that uses a DB and DelayedJobs). The app has a large footprint, and needs to be distributed on a cluster most likely. Any tips would be appreciated. Are there Amazon AMIs that replicate some of Heroku's features (especially DJ)? P.S. I'm quite a Ruby newbie.

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  • Sending two arrays using ajax post request

    - by sachin taware
    I am working on a filter functionality using ajax/jquery and php/mysql.I have two sets of check boxes 1)=for Regions 2)=for Localities.The filter is similar to the one here http://www.proptiger.com/property-in-pune-real-estate.php I want to send the values of both the check boxes to filter the records.The filter for localities will be locally filtered on the selection of a region check box.I have got it to work upto some extent This is called on the first set of check boxes. Html <div class="locality"> <input type="checkbox" id="checkbox1" class="checkbox1" value="<?php echo $suburb['suburb_name']?>" name="Suburb_check[]" onClick="changeResults();" onChange="" ><?php echo $suburb['suburb_name']?> <span class="grey">(<?php echo $suburb['total']?>)</span> </div> <?php }?> Javascript/Jquery function changeResults(){ var data = { 'venue[]' : []}; $("input:checked").each(function() { var chck1 = $(this).val(); //alert(chck1); data['venue[]'].push($(this).val()); }); $.ajax({ type : 'POST', url : 'process.php', data : data, success : function(data){ $('#project_section').html(data); // replace the contents coming from php file } }); $.ajax({ type : 'POST', url : 'loadLocality.php', data : data, success : function(data){ document.getElementById("searchLoader").style.display = 'block'; $('#localityList').html(data); // replace the contents coming from php file // alert(data); document.getElementById("searchLoader").style.display = 'none'; } }); } This is the second set of chck boxes with Localities <div class="locality" id="localities"> <input type="checkbox" onClick="changeLocality();" id="1" value="<?php echo $locality['locality_name'];?>" name="Locality_check[]"><?php echo $locality['locality_name'];?> <span class="grey">(<?php echo $locality['total'];?>)</span> </div> I have called a function similar to the above one and posted it to a different page. Here is the second chck box function: function changeLocality(){ var dataLocality = {'locality[]' : []}; $("input:checked").each(function() { var chcklocal = $(this).val(); //alert(chcklocal); dataLocality['locality[]'].push($(this).val()); }); $.ajax({ type : 'POST', url : 'processLocality.php', data : dataLocality, success : function(dataLocality){ // document.getElementById("newloader").style.display ="block"; $('#project_section').html(dataLocality); // replace the contents coming from php file //alert('data'); // document.getElementById("newloader").style.display ="none"; } }); } But,when I select a region box and then a locality box and then deselect the region,I also get the previous locality value in the region array(name of the array is venue)I want only regions to go in the venue array and regions+localities in the locality array.Actually,if I deselect the region subsequent locality value should also be removed from the array.Also,eventhough I am posting them to different pages the region page holds the locality values.I am stuck as not much of JQUERY knowledge. Went through posts,but was not able to fix it.Any help would be appreciated. EDIT I get an array when I check the first set of chck boxes,and also filter the records using above functions. Array ( [venue] => Array ( [0] => Pune East [1] => Pune West [2] => Pune North [3] => Pune South ) )

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  • Unable to allocate new pages in table space "XXXX" ... but it's 250 megs and I'm only running DDL

    - by Sylvia
    Hello, I'm a DB2 newbie, so I'd appreciate even any pointers on where to start looking. We have great DB2 admins but they're swamped with other issues now, so I'm trying to do some troubleshooting on a development database. My situation is that I have a tablespace that's giving me this error message Unable to allocate new pages in table space "[MyTableSpace]". However, all I'm doing is running multiple (hundreds) of DDL statements, mainly creating tables but also indexes and pk scripts. So, considering that the tablespace has about 250 mg, I shouldn't be running out of space, right? Here's another thing - it appears that after I leave my script for a while, something "resets" and works for a while, then I begin to have the tablespace issue again. thanks, Sylvia

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  • ubuntu server slowly filling up

    - by Crash893
    We had our samba server (ubuntu 8.04 ltr) share fill up the other day but when I went to look at it I cant see any of the shares have to much on them we have 5 group shares and then each users has an individual share one users has 22gigs of stuff a few others have 10-20mb of stuff and everyone else is empty so maybe like 26gigs total I deleted a few files yesterday and freed up about 250mb of space today when i checked it it was completely full again and i deleted some older files and freed up about 170mb of stuff but i can watch it slowly creep down in free space. I keep running a df -h Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 241690180 229340500 169200 100% / varrun 257632 260 257372 1% /var/run varlock 257632 0 257632 0% /var/lock udev 257632 72 257560 1% /dev devshm 257632 52 257580 1% /dev/shm lrm 257632 40000 217632 16% /lib/modules/2.6.24-28-generic /volatile what can I do to try to hunt down whats taking up so much of my hdd? (im fairly new to unix in general so i apologize if this is not well explained)

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  • ubuntu server slowly filling up

    - by Crash893
    We had our samba server (ubuntu 8.04 ltr) share fill up the other day but when I went to look at it I cant see any of the shares have to much on them we have 5 group shares and then each users has an individual share one users has 22gigs of stuff a few others have 10-20mb of stuff and everyone else is empty so maybe like 26gigs total I deleted a few files yesterday and freed up about 250mb of space today when i checked it it was completely full again and i deleted some older files and freed up about 170mb of stuff but i can watch it slowly creep down in free space. I keep running a df -h Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 241690180 229340500 169200 100% / varrun 257632 260 257372 1% /var/run varlock 257632 0 257632 0% /var/lock udev 257632 72 257560 1% /dev devshm 257632 52 257580 1% /dev/shm lrm 257632 40000 217632 16% /lib/modules/2.6.24-28-generic /volatile what can I do to try to hunt down whats taking up so much of my hdd? (im fairly new to unix in general so i apologize if this is not well explained)

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  • What WPF frameworks should I use?

    - by joebeazelman
    I'm a newbie to WPF and I'm developing a brand new windows desktop application and I would like your opinion on what WPF framework I should use. I know this question has been asked before, but the last question was asked at least several months ago. A lot has changed since then. Right now, I'm using MVVM Light which is more of a library than an actual framework, as the name suggests. I’m looking for something more comprehensive. I prefer a framework that I can use on future WPF projects. Consequently, it should be general purpose and productive. Any insights or suggestions?

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  • Rows in their own columns depending on their date and simbolized by 'x'

    - by Chandradyani
    Dear All, please help me since I'm newbie in SQL Server. I have a select query that currently produces the following results: DoctorName Team Visit date dr. As A 5 dr. Sc A 4 dr. Gh B 6 dr. Nd C 31 dr As A 7 Using the following query: SELECT d.DoctorName, t.TeamName, ca.VisitDate FROM cActivity AS ca INNER JOIN doctor AS d ON ca.DoctorId = d.Id INNER JOIN team AS t ON ca.TeamId = t.Id WHERE ca.VisitDate BETWEEN '1/1/2010' AND '1/31/2010' I want to produce the following: DoctorName Team 1 2 3 4 5 6 7 ... 31 Visited dr. As A x x ... 2 times dr. Sc A x ... 1 times dr. Gh B x ... 1 times dr. Nd C ... X 1 times

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  • Very large log files in IIS 7.x

    - by Neal
    Hello, I had a site stop working today and when I RDP'd into the server I saw a warning about low disk space. The first thing I checked was the inetpub folder where the log files are stored and sure enough it was huge, 40 GB huge. I do clean the files monthly but what is causing a day's worth of logging on a medium activity site (www.vbdotnetforums.com) to create 300-500 MB log files? I do have everything being logged so my SmarterStats software gives me the most info, but are there specific things I should/can turn off that is causing the most growth in these log files? Also, sure would be nice if Microsoft someday had some sort of log file management such as deleting log files after they exceed a certain size (total), X days, etc. We all have to come up with some solution to delete the old ones manually. Thanks Neal

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  • How to install MariaDB rpms in CentOS 6.4 using rpm (not yum cmd) + handling mysql-libs conflicts

    - by Pat C
    I need to script the install of MariaDB using the rpm command in CentOS 6.4. I can't use yum since it's going to be an offline install so there's no access to the repository. The only MySQL package installed is mysql-libs as various other packages in CentOS depend on it. When I did a test install of MariaDB with yum it correctly accounted for mysql-libs and uninstalled it at the end as MariaDB could handle the dependencies after it was installed: [root@new-host-6 ~]# yum install MariaDB-client MariaDB-common MariaDB-compat MariaDB-devel MariaDB-server MariaDB-shared Loaded plugins: downloadonly, fastestmirror, refresh-packagekit, security, verify Loading mirror speeds from cached hostfile * base: mirrors.kernel.org * extras: mirror.keystealth.org * updates: mirror.umd.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package MariaDB-client.x86_64 0:5.5.32-1 will be installed ---> Package MariaDB-common.x86_64 0:5.5.32-1 will be installed ---> Package MariaDB-compat.x86_64 0:5.5.32-1 will be obsoleting ---> Package MariaDB-devel.x86_64 0:5.5.32-1 will be installed ---> Package MariaDB-server.x86_64 0:5.5.32-1 will be installed ---> Package MariaDB-shared.x86_64 0:5.5.32-1 will be obsoleting ---> Package mysql-libs.x86_64 0:5.1.66-2.el6_3 will be obsoleted --> Finished Dependency Resolution Dependencies Resolved ==================================================================================================================================================================== Package Arch Version Repository Size ==================================================================================================================================================================== Installing: MariaDB-client x86_64 5.5.32-1 mariadb 10 M MariaDB-common x86_64 5.5.32-1 mariadb 23 k MariaDB-compat x86_64 5.5.32-1 mariadb 2.7 M replacing mysql-libs.x86_64 5.1.66-2.el6_3 MariaDB-devel x86_64 5.5.32-1 mariadb 5.6 M MariaDB-server x86_64 5.5.32-1 mariadb 34 M MariaDB-shared x86_64 5.5.32-1 mariadb 1.1 M replacing mysql-libs.x86_64 5.1.66-2.el6_3 Transaction Summary ==================================================================================================================================================================== Install 6 Package(s) Total download size: 53 M Is this ok [y/N]: y Downloading Packages: (1/6): MariaDB-5.5.32-centos6-x86_64-client.rpm | 10 MB 00:06 (2/6): MariaDB-5.5.32-centos6-x86_64-common.rpm | 23 kB 00:00 (3/6): MariaDB-5.5.32-centos6-x86_64-compat.rpm | 2.7 MB 00:02 (4/6): MariaDB-5.5.32-centos6-x86_64-devel.rpm | 5.6 MB 00:06 (5/6): MariaDB-5.5.32-centos6-x86_64-server.rpm | 34 MB 00:23 (6/6): MariaDB-5.5.32-centos6-x86_64-shared.rpm | 1.1 MB 00:00 -------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 1.3 MB/s | 53 MB 00:40 warning: rpmts_HdrFromFdno: Header V4 DSA/SHA1 Signature, key ID 1bb943db: NOKEY Retrieving key from https://yum.mariadb.org/RPM-GPG-KEY-MariaDB Importing GPG key 0x1BB943DB: Userid: "Daniel Bartholomew (Monty Program signing key) <[email protected]>" From : https://yum.mariadb.org/RPM-GPG-KEY-MariaDB Is this ok [y/N]: y Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Warning: RPMDB altered outside of yum. Installing : MariaDB-compat-5.5.32-1.x86_64 1/7 Installing : MariaDB-common-5.5.32-1.x86_64 2/7 Installing : MariaDB-server-5.5.32-1.x86_64 3/7 chown: cannot access `/var/lib/mysql': No such file or directory PLEASE REMEMBER TO SET A PASSWORD FOR THE MariaDB root USER ! To do so, start the server, then issue the following commands: '/usr/bin/mysqladmin' -u root password 'new-password' '/usr/bin/mysqladmin' -u root -h new-host-6 password 'new-password' Alternatively you can run: '/usr/bin/mysql_secure_installation' which will also give you the option of removing the test databases and anonymous user created by default. This is strongly recommended for production servers. See the MariaDB Knowledgebase at http://kb.askmonty.org or the MySQL manual for more instructions. Please report any problems with the '/usr/bin/mysqlbug' script! The latest information about MariaDB is available at http://mariadb.org/. You can find additional information about the MySQL part at: http://dev.mysql.com Support MariaDB development by buying support/new features from Monty Program Ab. You can contact us about this at [email protected]. Alternatively consider joining our community based development effort: http://kb.askmonty.org/en/contributing-to-the-mariadb-project/ Installing : MariaDB-devel-5.5.32-1.x86_64 4/7 Installing : MariaDB-client-5.5.32-1.x86_64 5/7 Installing : MariaDB-shared-5.5.32-1.x86_64 6/7 Erasing : mysql-libs-5.1.66-2.el6_3.x86_64 7/7 Verifying : MariaDB-common-5.5.32-1.x86_64 1/7 Verifying : MariaDB-server-5.5.32-1.x86_64 2/7 Verifying : MariaDB-devel-5.5.32-1.x86_64 3/7 Verifying : MariaDB-client-5.5.32-1.x86_64 4/7 Verifying : MariaDB-compat-5.5.32-1.x86_64 5/7 Verifying : MariaDB-shared-5.5.32-1.x86_64 6/7 Verifying : mysql-libs-5.1.66-2.el6_3.x86_64 7/7 Installed: MariaDB-client.x86_64 0:5.5.32-1 MariaDB-common.x86_64 0:5.5.32-1 MariaDB-compat.x86_64 0:5.5.32-1 MariaDB-devel.x86_64 0:5.5.32-1 MariaDB-server.x86_64 0:5.5.32-1 MariaDB-shared.x86_64 0:5.5.32-1 Replaced: mysql-libs.x86_64 0:5.1.66-2.el6_3 Complete! My question is, what is the equivalent way to install the MariaDB packages using the rpm command only as opposed to yum? If I do rpm -ivh MariaDB*.rpm, I will get a ton of messages like the following about conflicts with mysql-libs: file /etc/my.cnf from install of MariaDB-common-5.5.32-1.x86_64 conflicts with file from package mysql-libs-5.1.66-2.el6_3.x86_64 file /usr/share/mysql/charsets/Index.xml from install of MariaDB-common-5.5.32-1.x86_64 conflicts with file from package mysql-libs-5.1.66-2.el6_3.x86_64 I then used the --force option to install the MariaDB rpms and uninstalled mysql-lib, I didn't get any weird messages but I'm not sure that is the cleanest method to handle the conflicts and do the install. So can someone confirm that installing MariaDB with the following rpm commands would be the same as using yum to install the packages and handle mysql-libs conflicts/removal: rpm -ivh --force MariaDB*.rpm rpm -e mysql-libs Thanks for any input!

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  • Asp.net Ajax problem

    - by Vinzcent
    Hey I installed the Asp.net Ajax toolkit. In my site I use the NummericUpDown from that toolkit. Now, I want that a label changes when the NummericUpDown Textboxes changes. I try to use JavaScript for this, but I always get the following error: 'ASP.orders_aspx' does not contain a definition for 'changeAmount' and no extension method 'changeAmount' accepting a first argument of type 'ASP.orders_aspx' could be found (are you missing a using directive or an assembly reference?) This is my code: <%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="orders.aspx.cs" Inherits="orders" Title="the BookStore" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server"> <script type="text/javascript"> function changeAmount() { var amount = document.getElementById("txtCount"); var total = 10 * amount.value; document.getElementById("lblPrice").value = total; } </script> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> <ajaxToolkit:ToolkitScriptManager runat="Server" EnablePartialRendering="true" ID="ScriptManager1" /> <h1 id="H1" runat="server"> Bestellen</h1> <asp:Panel ID="pnlZoeken" runat="server" Visible="true"> <asp:ObjectDataSource ID="objdsSelectedBooks" runat="server" OnSelecting="objdsSelectedBooks_Selecting" TypeName="DAL.BooksDAL"></asp:ObjectDataSource> <h3> Overzicht van het gekozen boek</h3> <asp:FormView ID="fvBestelBoek" runat="server" Width="650"> <ItemTemplate> <h3> Aantal boeken bestellen</h3> <table width="650"> <tr class="txtBox"> <td> Boek </td> <td> Prijs </td> <td> Aantal </td> <td> Korting </td> <td> Totale Prijs </td> </tr> <tr> <td> <%# Eval("TITLE") %> </td> <td> <asp:Label ID="lblPrice" runat="server" Text='<%# Eval("PRICE") %>' /> </td> <td> <asp:TextBox OnTextChanged="changeAmount()" ID="txtCount" runat="server"></asp:TextBox> <ajaxToolkit:NumericUpDownExtender ID="NumericUpDownExtender1" runat="server" TargetControlID="txtCount" Width="50" Minimum="1" ServiceDownMethod="" ServiceUpMethod="" /> </td> <td> - </td> <td> <asp:Label ID="lblAmount" runat="server" /> </td> </tr> </table> </ItemTemplate> </asp:FormView> <asp:Button ID="btnBestel" runat="server" CssClass="btn" Text="Bestel" OnClick="btnBestel_Click1" /> <asp:Button ID="btnReChoose" runat="server" CssClass="btnDelete" Text="Kies een ander boek" OnClick="btnRechoose_Click" /> </asp:Panel> </asp:Content> Does anyone know the answer? Thanks a lot, Vincent

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  • Planning home network

    - by gakhov
    I'm planning to setup my home network from scratch and want to ask professional opinions or tips. My home is connected to Internet with a cable connection (100 Mb/s). The devices I would like to connect are VoIP phone (RJ-45), TV (WiFi/LAN), 3 laptops (WiFi), 2 smartphones (WiFi), an iPad (WiFi), a Kindle (WiFi), a network printer and, probably, a home media storage (WiFi/LAN). As you can see, the most load will be on WiFi connections (probably, even if TV supports WiFi it's better to connect it by LAN?). So, I need help to choose the best router (or combination of routers) to support stable connections for all these devices and minimize the total number of routers/adapters. I like how Cisco/Linksys devices were working for me in the past, so preferably (but not obligatorily) I want to setup network with their solutions. Any thoughts?

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  • being able to solve google code jam problem sets

    - by JPro
    This is not a homework question, but rather my intention to know if this is what it takes to learn programming. I keep loggin into TopCoder not to actually participate but to get the basic understand of how the problems are solved. But to my knowledge I don't understand what the problem is and how to translate the problem into an algorithm that can solve it. Just now I happen to look at ACM ICPC 2010 World Finals which is being held in china. The teams were given problem sets and one of them is this: Given at most 100 points on a plan with distinct x-coordinates, find the shortest cycle that passes through each point exactly once, goes from the leftmost point always to the right until it reaches the rightmost point, then goes always to the left until it gets back to the leftmost point. Additionally, two points are given such that the the path from left to right contains the first point, and the path from right to left contains the second point. This seems to be a very simple DP: after processing the last k points, and with the first path ending in point a and the second path ending in point b, what is the smallest total length to achieve that? This is O(n^2) states, transitions in O(n). We deal with the two special points by forcing the first path to contain the first one, and the second path contain the second one. Now I have no idea what I am supposed to solve after reading the problem set. and there's an other one from google code jam: Problem In a big, square room there are two point light sources: one is red and the other is green. There are also n circular pillars. Light travels in straight lines and is absorbed by walls and pillars. The pillars therefore cast shadows: they do not let light through. There are places in the room where no light reaches (black), where only one of the two light sources reaches (red or green), and places where both lights reach (yellow). Compute the total area of each of the four colors in the room. Do not include the area of the pillars. Input * One line containing the number of test cases, T. Each test case contains, in order: * One line containing the coordinates x, y of the red light source. * One line containing the coordinates x, y of the green light source. * One line containing the number of pillars n. * n lines describing the pillars. Each contains 3 numbers x, y, r. The pillar is a disk with the center (x, y) and radius r. The room is the square described by 0 = x, y = 100. Pillars, room walls and light sources are all disjoint, they do not overlap or touch. Output For each test case, output: Case #X: black area red area green area yellow area Is it required that people who program should be should be able to solve these type of problems? I would apprecite if anyone can help me interpret the google code jam problem set as I wish to participate in this years Code Jam to see if I can do anthing or not. Thanks.

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  • Inconsistent black levels in windows 7 media center

    - by James G
    I've got a HTPC running windows 7 64bit, hooked up to a Samsung LCD TV. My problem is different types of video are displaying different black levels on the TV. When I play a bluray through Arcsoft Total Media Theater I have to set the "HDMI Black Level" to "normal" in the TV picture options menu. When I play recorded TV through WMC I have to set it to "low" otherwise the black colors on the video are washed out and grey. Is there any way to configure the system so all videos are displayed with the same black level? The hdmi black level setting is deep in Samsung's menus so it's becoming a chore to keep switching it everytime I watch a different type of video. I'm using an ATI 4670 graphics card with HDMI output going straight to the TV. In the ATI catalyst control center I've got pixel format set to RGB 4:4:4 (Full RGB) since the TV wont allow me to change the HDMI black level if I choose one of the other settings.

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  • Paging, sorting and filtering in a stored procedure (SQL Server)

    - by Fruitbat
    I was looking at different ways of writing a stored procedure to return a "page" of data. This was for use with the asp ObjectDataSource, but it could be considered a more general problem. The requirement is to return a subset of the data based on the usual paging paremeters, startPageIndex and maximumRows, but also a sortBy parameter to allow the data to be sorted. Also there are some parameters passed in to filter the data on various conditions. One common way to do this seems to be something like this: [Method 1] ;WITH stuff AS ( SELECT CASE WHEN @SortBy = 'Name' THEN ROW_NUMBER() OVER (ORDER BY Name) WHEN @SortBy = 'Name DESC' THEN ROW_NUMBER() OVER (ORDER BY Name DESC) WHEN @SortBy = ... ELSE ROW_NUMBER() OVER (ORDER BY whatever) END AS Row, ., ., ., FROM Table1 INNER JOIN Table2 ... LEFT JOIN Table3 ... WHERE ... (lots of things to check) ) SELECT * FROM stuff WHERE (Row > @startRowIndex) AND (Row <= @startRowIndex + @maximumRows OR @maximumRows <= 0) ORDER BY Row One problem with this is that it doesn't give the total count and generally we need another stored procedure for that. This second stored procedure has to replicate the parameter list and the complex WHERE clause. Not nice. One solution is to append an extra column to the final select list, (SELECT COUNT(*) FROM stuff) AS TotalRows. This gives us the total but repeats it for every row in the result set, which is not ideal. [Method 2] An interesting alternative is given here (http://www.4guysfromrolla.com/articles/032206-1.aspx) using dynamic SQL. He reckons that the performance is better because the CASE statement in the first solution drags things down. Fair enough, and this solution makes it easy to get the totalRows and slap it into an output parameter. But I hate coding dynamic SQL. All that 'bit of SQL ' + STR(@parm1) +' bit more SQL' gubbins. [Method 3] The only way I can find to get what I want, without repeating code which would have to be synchronised, and keeping things reasonably readable is to go back to the "old way" of using a table variable: DECLARE @stuff TABLE (Row INT, ...) INSERT INTO @stuff SELECT CASE WHEN @SortBy = 'Name' THEN ROW_NUMBER() OVER (ORDER BY Name) WHEN @SortBy = 'Name DESC' THEN ROW_NUMBER() OVER (ORDER BY Name DESC) WHEN @SortBy = ... ELSE ROW_NUMBER() OVER (ORDER BY whatever) END AS Row, ., ., ., FROM Table1 INNER JOIN Table2 ... LEFT JOIN Table3 ... WHERE ... (lots of things to check) SELECT * FROM stuff WHERE (Row > @startRowIndex) AND (Row <= @startRowIndex + @maximumRows OR @maximumRows <= 0) ORDER BY Row (Or a similar method using an IDENTITY column on the table variable). Here I can just add a SELECT COUNT on the table variable to get the totalRows and put it into an output parameter. I did some tests and with a fairly simple version of the query (no sortBy and no filter), method 1 seems to come up on top (almost twice as quick as the other 2). Then I decided to test probably I needed the complexity and I needed the SQL to be in stored procedures. With this I get method 1 taking nearly twice as long as the other 2 methods. Which seems strange. Is there any good reason why I shouldn't spurn CTEs and stick with method 3? UPDATE - 15 March 2012 I tried adapting Method 1 to dump the page from the CTE into a temporary table so that I could extract the TotalRows and then select just the relevant columns for the resultset. This seemed to add significantly to the time (more than I expected). I should add that I'm running this on a laptop with SQL Server Express 2008 (all that I have available) but still the comparison should be valid. I looked again at the dynamic SQL method. It turns out I wasn't really doing it properly (just concatenating strings together). I set it up as in the documentation for sp_executesql (with a parameter description string and parameter list) and it's much more readable. Also this method runs fastest in my environment. Why that should be still baffles me, but I guess the answer is hinted at in Hogan's comment.

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  • MongoDB ReplicaSet Elections when some nodes are down

    - by SecondThought
    I'm trying to get into ReplicaSet concept, and found something weird in mongoDB Documentation: For a node to be elected primary, it must receive a majority of votes. This is a majority of all votes in the set: if you have a 5-member set and 4 members are down, a majority of the set is still 3 members (floor(5/2)+1). Each member of the set receives a single vote and knows the total number of available votes. If no node can reach a majority, then no primary can be elected and no data can be written to that replica set (although reads to secondaries are still possible). (taken from here) So, If I got that right, in the 5-member case mentioned there the one node that's still standing WILL NOT be chosen as primary and the whole set will not get any writes? and that's even if this single node was the last primary before the elections? If it's true there can be many less-radical cases which will end up with a degenerated set. How can we avoid this?

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  • DataModelSelection on list exposed via EntityQuery

    - by Kalpana
    Is it possible to have support for enabling DataModelSelection on a list page paginated via EntityQuery? (All the examples load the list by performing a query on the @Factory method). But, I would like to re-use the existing pagination mechanism and just enable the ability to support DataModelSelection on it. I am also assuming that DataModelSelection is capable of tracking a single row in a List, how do we extend this to support a certain action (say deletion, activation ...) of multiple rows. I am a newbie and would appreciate any help on this topic. I have already gone through the samples shipped as part of Seam (booking, message). I have already posted this in seam users forum, but I am yet to get a response

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  • Using java classes in Grails

    - by RN
    I have a Java\Spring\Hibernate application - complete with domain classes which are basically Hibernate POJOs There is a piece of functionality that I think can be written well in Grails. I wish to reuse the domain classes that I have created in the main Java app What is the best way to do so ? Should I write new domain classes extending the Java classes ? this sounds tacky Or Can I 'generate' controllers off the Java domain classes ? What are the best practices around reusing Java domain objects in Grails\Groovy I am sure there must be others writing some pieces in grails\groovy If you know about a tutorial which talks about such an integration- that would be awesome !!! PS: I am quite a newbie in grails-groovy so may be missing the obvious. Thanks !!!

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  • What command to use to unpack a .tar.gz file in Windows?

    - by Ivan
    I use to receive tar.gz files fromm colleagues but unpacking them with 7zip is not convenient as it unpacks a tar file from gz first while I usually seek to get the tar file contents (so I have to unpack the tar file explicitly next). I've tried adding tar -zxvf %P%N command to Total Commander button bar but it turned that tar -zxvf doesn't work but returns the following error (tried it in bare command prompt): tar: Cannot fork: Function not implemented tar: Error is not recoverable: exiting now I have got both GnuWin32 and cygwin installed, but I seek a solution that will work in Windows command line promt (and so will be callable from Totat Commander), not in cygwin command line promt.

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  • iPhone keyboard doesn't appear when entering a UITextField

    - by Norm
    This has to be some kind of newbie blunder that I just can’t see, and I’d be grateful for hints as to what to check or where to look. I've followed an iPhone tutorial that has a UITextField, making sure I connected the IBOutlet for the text field, and it seems to compile properly (no errors or warnings). But when I run it under the simulator, and click in the field, I don’t get the keyboard, so I can’t enter anything into the field. I’ve tried searching the site for similar questions, and all I’ve found is a few questions where the developer is trying to set up some complex UI with multiple controllers, and one that seemed to be the same issue, but the original poster simply said that he solved it by starting a new project and porting the code over. I’d like to find an actual solution, so I don’t have to try randomly rebuilding projects when this issue comes up again. Thanks!

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  • Dell R910 with Integrated PERC H700 Adapter

    - by Alex
    I am in the process of designing an architecture based around a single Dell R910 server running Windows Server 2008 Enterprise. I would like the server to have 8 RAID1 pairs of spinning disks, so I intend to implement: Dell R910 Server Integrated PERC H700 Adapter with 1 SAS expander on each SAS connector (so 8 expanders in total) 7 RAID1 pairs of 143Gb 15K HDD, each paired on one connector using an expander 1 RAID1 pair of 600Gb 10K HDD, paired on the remaining connector using an expander My main concern is not to introduce bottlenecks in this architecture, and I have the following questions. Will the PERC H700 Adapter act as a bottleneck for disk access? Will using SAS expanders for each RAID1 pair cause a bottleneck or would this be as fast as pairing disks directly attached to the SAS connectors? Can I mix the disks, as long as the disks in each RAID1 pair are the same? I assume so. Can anyone recommend any single-to-double SAS Expanders that are known to function well with the H700? Cheers Alex

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