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  • Canon LiDE 600F FAU on Snow Leopard?

    - by jdmuys
    I have been able to use my Canon LiDE 600F scanner under Snow Leopard to scan paper sheet, after installing Canon's latest driver software. However, I cannot find a way to make the FAU (Film Adaptor Unit) to work: Canon's software want to calibrate it first and gives an error message "Calibration cannot be performed. Pull out the film. 182.0.0". (of course there is no film). Hamrick's VueScan doesn't seem to support the FAU Apple's Image Capture doesn't propose a film option either Did I miss something? Did somebody manage to scan film (positive or negative) using the LiDE 600F under Snow Leopard? Many thanks

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  • Cant install windows 7(boot problem)

    - by Vadiklk
    First of all, I cant boot my windows 7. I get a black screen with a cursor up in the left corner. So, I tried using windows 7 installation which I've put on my flash drive. To boot from the drive, I've changed the boot order to boot from the drive first. It boots but does not find any HDD to install the windows on(which is pretty logic, I dont boot the HDD soon enough for the installer). but if i put the HDD in front of the flash drive in the boot order, it will just try to load windows 7 and i will get the black screen again. I've tried putting the HDD first and clicking f8 a lot. All I've got is an error. Something about some software change. I dunno. Help me please, cant do anything with my laptop till then.

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  • Php template caching design

    - by Thomas
    Hello to all, I want to include caching in my app design. Caching templates for starters. The design I have used so far is very modular. I have created an ORM implementation for all my tables and each table is represented by the corresponding class. All the requests are handled by one controller which routes them to the appropriate webmethod functions. I am using a template class for handling UI parts. What I have in mind for caching includes the implementation of a separate Cache class for handling caching with the flexibility to either store in files, apc or memcache. Right now I am testing with file caching. Some thoughts Should I include the logic of checking for cached versions in the Template class or in the webmethods which handle the incoming requests and which eventually call the Template class. In the first case, things are pretty simple as I will not have to change anything more than pass the template class an extra argument (whether to load from cache or not). In the second case however, I am thinking of checking for a cached version immediately in the webmethod and if found return it. This will save all the processing done until the logic reaches the template (first case senario). Both senarios however, rely on an accurate mechanism of invalidating caches, which brings as to Invalidating caches As I see it (and you can add your input freely) a template cached file, becomes invalidate if: a. the expiration set, is reached. b. the template file itself is updated (ie by the developer when adding a new line) c. the webmethod that handles the request changes (ie the developer adds/deletes something in the code) d. content coming from the db and ending in the template file is modified I am thinking of storing a json encoded array inside the cached file. The first value will be the expiration timestamp of the cache. The second value will be the modification time of the php file with the code handling the request (to cope with option c above) The third will be the content itself The validation process I am considering, according to the above senarios, is: a. If the expiration of the cached file (stored in the array) is reached, delete the cache file b. if the cached file's mod time is smaller than the template's skeleton file mod time, delete the cached file c. if the mod time of the php file is greated than the one stored in the cache, delete the cached file. d. This is tricky. In the ORM implementation I ahve added event handlers (which fire when adding, updating, deleting objects). I could delete the cache file every time an object thatprovides content to the template, is modified. The problem is how to keep track which cached files correpond to each schema object. Take this example, a user has his shortprofile page and a full profile page (2 templates) These templates can be cached. Now, every time the user modifies his profile, the event handler would need to know which templates or cached files correspond to the User, so that these files can be deleted. I could store them in the db but I am looking for a beter approach

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  • What is the minimum delay between two consecutive RS232 frames?

    - by Lord Loh.
    I have been working on creating a UART on an FPGA. I can successfully transmit and receive single characters typed on PuTTY. However, when I set my FPGA to constantly write a large sequences of "A", sometimes I end up with a sequences of "@" or some other characters until I reset the FPGA a few times. I believe the UART on the computer looses track of the difference between the start bit and a zero. The delay between the two "A" is ~ 30us (measured with a logic analyzer) and the baud rate is 115200 8N1. Is there a minimum delay that must be maintained between two consecutive RS232 frames?

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  • I have to shard a mysql database. I want to start with 12 shards on 2 machines. What is the best w

    - by Tim
    All tables are InnoDb. I would rather not use mysqldump, because the shard sizes will be about 200 GB (about 700 million rows), and that will take too long. I was hoping to just stop mysql for an hour, copy the data files to a new machine, and start back up. But you can't do this with InnoDb, as some data is in the shared tablespace. Even if I have the innodb_file_per_table option set. This is not a website, but a custom application, used by tens of thousands right now, so uptime and performance are important. I suppose I could add logic into my server application to allow for gradual rebalancing / moving of a shard. Does anyone have a better idea?

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  • How can I know I'm buying a heatsink that will work with my CPU?

    - by Mike Peshka
    Recently I've been using my CPU a lot more for gaming, and as of two days ago, my computer had just been shutting off suddenly with no warning. I'm inclined to believe I need a new heatsink and cooling fan system. (Correct me if I am wrong.) Now I went around to BestBuy and Staples to purchase a new one, but both places instructed me to look online. Now I am posed with a problem. I don't know how to shop for one online because I want to make sure it will work with my unit. My CPU is a Pentium® Dual-Core CPU E2210 @ 2. 20GHz

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  • Run Wave Trusted Drive Manager from a bootable CD, recover crashed enrypted SSD?

    - by TigerInCanada
    Is there a way to run Wave Trusted Drive Manager from a live-cd to access a non-bootable SSD with Full Disk Encyption hard disk? http://www.wave.com/products/tdm.asp The crashed disk is a Samsung SSD PB22-JS3, 128Gb. Is has bad blocks at 128-block intervals. If the SSD password could be unset, is sending the unit for disaster recovery possible? What might cause a nearly new SSD to crash in this way, and what is the probability of it happening again? We have other units in service an I can do without every laptop disk in the company crashing...

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  • Monitoring server room temperature

    - by user640
    I have a small server room with its own AC unit. Recently, the AC died, and the temperature increased from 70 F to 90 F. We rarely go in this room, so I was lucky that someone happened to notice that the fans were running a lot louder than normal as they walked past the door. It looks like I need a way to be notified when the temperature in that room gets too hot. What tools are you using to monitor the temperature in your server room? How does this tool notify you of a problem (email, SNMP, etc). Note: I've read this question on server temperature, but I'm interested in the whole room, not just the inside of a server case. Edit: Thanks for all the great responses so far! Many of these products measure much more than just temperature. What else should I be looking at and why?

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  • How to set a page as default for apache, that doesn't live in the directory and only applies if ther

    - by Kyle
    I know. This sounds complicated =D I made a PHP file browser, as an alternative to the apache one. I needed it for logic purposes, it does extra things for me, &etc. So instead of dropping this file in all of my directories, how could I get it to "show up" in all my directories that don't have an index (would use the apache dirlisting by default)? Thanks for the help! Edit I wonder if this could be done using Alias and DirectoryIndex? Is it possible to alias to a file?

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  • java - unwanted object overwriting

    - by gosling
    Hello everyone! I'm trying to make a program that solves the logic wheels puzzle. I construct the root node and I try to produce the different child-nodes that are produced by making different moves of the wheels. The problem is that while I try to produce the children, the root node is overwrited,and everything is messed-up and I really don't know why. Here you can find the puzzle logic wheels. I represent the wheels as 3x3 arrays. Here is the code that implements the moves: public Node turn_right(Node aNode, int which_wheel) { Node newNode = new Node(aNode.getYellow_wheel(),aNode.getBlue_wheel(),aNode.getGreen_wheel()); int[][] yellow = new int[3][3]; int[][] blue = new int[3][3]; int[][] green = new int[3][3]; if(which_wheel==0) //turn yellow wheel of this node to right { yellow[1][0] = newNode.getYellow_wheel()[0][0]; yellow[2][0] = newNode.getYellow_wheel()[1][0]; yellow[2][1] = newNode.getYellow_wheel()[2][0]; yellow[2][2] = newNode.getYellow_wheel()[2][1]; yellow[1][2] = newNode.getYellow_wheel()[2][2]; yellow[0][2] = newNode.getYellow_wheel()[1][2]; yellow[0][1] = newNode.getYellow_wheel()[0][2]; yellow[0][0] = newNode.getYellow_wheel()[0][1]; blue = newNode.getBlue_wheel(); blue[1][0] = newNode.getYellow_wheel()[1][2]; blue[2][0] = newNode.getYellow_wheel()[2][2]; green = newNode.getGreen_wheel(); } else if(which_wheel == 1)// turn blue wheel of this node to right { blue[1][0] = newNode.getBlue_wheel()[0][0]; blue[2][0] = newNode.getBlue_wheel()[1][0]; blue[2][1] = newNode.getBlue_wheel()[2][0]; blue[2][2] = newNode.getBlue_wheel()[2][1]; blue[1][2] = newNode.getBlue_wheel()[2][2]; blue[0][2] = newNode.getBlue_wheel()[1][2]; blue[0][1] = newNode.getBlue_wheel()[0][2]; blue[0][0] = newNode.getBlue_wheel()[0][1]; yellow = newNode.getYellow_wheel(); yellow[0][2] = newNode.getBlue_wheel()[0][0]; yellow[1][2] = newNode.getBlue_wheel()[1][0]; green = newNode.getGreen_wheel(); green[1][0] = newNode.getBlue_wheel()[1][2]; green[2][0] = newNode.getBlue_wheel()[2][2]; } else if (which_wheel == 2)//turn green wheel of this node to right { green[0][0] = newNode.getGreen_wheel()[0][1]; green[0][1] = newNode.getGreen_wheel()[0][2]; green[0][2] = newNode.getGreen_wheel()[1][2]; green[1][2] = newNode.getGreen_wheel()[2][2]; green[2][2] = newNode.getGreen_wheel()[2][1]; green[2][1] = newNode.getGreen_wheel()[2][0]; green[2][0] = newNode.getGreen_wheel()[1][0]; green[1][0] = newNode.getGreen_wheel()[0][0]; yellow = newNode.getYellow_wheel(); blue = newNode.getBlue_wheel(); blue[0][2] = newNode.getGreen_wheel()[0][0]; blue[1][2] = newNode.getGreen_wheel()[1][0]; } newNode= new Node(yellow,blue,green); return newNode; } There is another function, like this one that does the oposite:it turns the wheels to left. My problem is that I do not want object's aNode tables to be overwritten. Thank you very much.

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  • Puppet causes endless restarts of CUPS (how does one prevent this)

    - by Purfideas
    Hi! It makes sense, and is in fact suggested on this site, to have a critical file change trigger a service restart with puppet meta-parameters (such as notify or subscribe). For example: ## file definition for printers.conf file { "/etc/cups/printers.conf": [snip], source => "puppet:///module/etc/cups/printers.conf" } ## service definition for sshd service { 'cups': ensure => running, subscribe => File['/etc/cups/printers.conf'] } But in the case of CUPS, this triggers and endless loop of restarts; the logic works like this: Change puppetmaster's version of /etc/cups/printers.conf puppetmaster pushes new version to client, triggering cups restart cupsd restart insists on putting its own time stamp at the top of printers.conf, 'Written by cupsd...' This change will be seen as out of date, so after runinterval, we return to (1). Is there a way to suppress cupsd's need to time stamp the file? Or is there a puppet trick that could help here? Thanks!

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  • Is the Zune HD's audio card better or worse than the iPod touch's?

    - by MatthewThepc
    Firstly, if this is the wrong site to ask this question I apologize, but I didn't see one for "music players" on the stack exchange website :) After reading a few people online say that music playing from a Zune HD sounds better to them than that on an iPod touch, I was wondering whether there's any truth to that? From what I can tell, the Zune HD uses a Wolfson Microelectronics WM8352, while the first-generation iPod Touch (which the Zune HD was competing with) used a Wolfson Microelectronics WM8758BG, and newer models use the Cirrus Logic CS4398 and CS42L61. Which ones are better (to make the question less subjective, let's say in terms of quality, range, & accuracy of output)? Admittedly, I have almost no idea how everything compares and works together, but it would seem to me that, just by looking at the version numbers, the iPod has been better since it's launch. Is there anything else that effects sound quality? Thanks!

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  • Colored PS1 string

    - by Will Vousden
    Clarification: I want __foo to be executed each time the PS1 string is presented in the terminal, not when the PS1 string is constructed (hence its being in quotes). __foo contains logic that examines the current directory, so its execution must be deferred. I'm trying to use different colours in my Bash PS1 string from within a Bash function: LIGHTRED="\033[1;31m" LIGHTGREEN="\033[1;32m" RESET="\033[m" __foo () { # Do some stuff and genereate a string to echo in different colours: echo -n '\['$1'\]firstcolour \['$2'\]secondcolour' } PS1='$(__foo '$LIGHTRED' '$LIGHTGREEN')\['$RESET'\] \$' Essentially I want __foo to generate part of the PS1 in a bunch of different colours. My attempt doesn't seem to work, though; it produces the following output: -bash: 31m: command not found -bash: 32m: command not found \[]firstcolour \[\]secondcolour $ What gives, and how can I fix it?

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  • OpenVZ multiple networks on CTs

    - by user6733
    I have Hardware Node (HN) which has 2 physical interfaces (eth0, eth1). I'm playing with OpenVZ and want to let my containers (CTs) have access to both of those interfaces. I'm using basic configuration - venet. CTs are fine to access eth0 (public interface). But I can't get CTs to get access to eth1 (private network). I tried: # on HN vzctl set 101 --ipadd 192.168.1.101 --save vzctl enter 101 ping 192.168.1.2 # no response here ifconfig # on CT returns lo (127.0.0.1), venet0 (127.0.0.1), venet0:0 (95.168.xxx.xxx), venet0:1 (192.168.1.101) I believe that the main problem is that all packets flows through eth0 on HN (figured out using tcpdump). So the problem might be in routes on HN. Or is my logic here all wrong? I just need access to both interfaces (networks) on HN from CTs. Nothing complicated.

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  • Vetting Github Pull requests with Hudson

    - by cdecker
    I've been using Gerrit and Hudson very successfully to test and automatically vote on new checkins in the past and now I'm wondering whether it is possible to set up Hudson so that it'll check Github at regular intervals and looks if there are new Pull Requests available. If yes it should apply the patch and run the unit tests against it, adding a comment to the pull request if no failure is detected. It would certainly reduce the amount of work going into vetting patches/pull requests. Is that possible at all, or should I stick with my Gerrit setup?

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  • Toshiba satellite u400 hardware buttons, which software?

    - by Kugel
    I've recently intalled Windows 7 64bit onto my Toshiba U400 laptop. I went over to toshiba support-download-drivers page and downloaded every driver that was missing. I chose not to download bloated stuff, only the drivers. Win7 has much better control over hardware buttons out of the box then I had before. But there is one thing that annoys me. I have hardware button on the laptom that is supposed to switch LEDs on/off. Windows 7 turns my sound on/off instead. The second minor thing is, when I turn off sound by pressing Fn+Esc (or light off button;-), the sound is off, however any slight touch with volume wheel turns it right back on! This is something that Ubuntu does also out of the box. I wonder what's the logic behind this. Any lightweight solutions to these out there? Thank you

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  • Special function keys are mixed up on my Macbook Pro

    - by seanieb
    I recently sent my Macbook Pro (late 2008 model) to get a replaced logic board and top cover. When I got it back the Special function keys are mixed up. F3 - mutes sound - it should do expose f4 - decreases volume - it should show the dashboard f5 - increases volume ....etc, ... F11 - expose - it should decrease volume f12 - dashboard - it should increase volume I have checked and made sure that System PreferencesKeyboard"use all F keys as standard function keys" is not selected. And that no accessibility options are switched on either. How do I fix this? or should I bring it back to the repair shop? Thanks

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  • iSCSI SAN RAID 10 Performance -- Poor Read, Good Write

    - by Litzner
    I have a EqualLogic PS4000 SAN unit with the latest firmware, setup in RAID 10. I have 3 2TB Volumes on the SAN shared out via iSCSI on 2 eth ports on two different subnets. I have moved a test server over to this newly setup SAN, and my testing is showing me a problem. I am getting dismal read performance in everything except a test with 32 queue depth (see attach image) Write performance seems to be right about where it should be. I have tried MPIO on and off, on was slightly better but not much.

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  • Virtual hosting in Varnish with individual vcl files for configuration

    - by Michael Sørensen
    I wish to use varnish to put in front of an apache and a tomcat on the same server. Depending on the ip requested, it goes to a different backend. This works. Now for most of the sites the default varnish logic will work just fine. However for some specific sites I wish to use custom VCL code. I can test for host name and include config files for the specific domains, but this only works inside the individual methods recv etc. Is there a way to include a complete set of instructions, in one file, per domain, without having to manage separate files for subdomain_recv, subdomain_fetch etc? And preferably without running seperate instances of varnish. When I try to include a file on the "root level" of default.vcl, I get a compilation error. Best regards, Michael

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  • Can i create a virtual machine on my laptop to be used with another monitor?

    - by Ranhiru
    OK, the scenario is like this... I have my laptop... and I have another user without a unit. He has only a keyboard, mouse and a monitor. Is there anyway that I can make him use my computer by creating a virtual environment which he will access, BUT, without interfering with my work. I use my laptop and view my OS from the laptop monitor. I create a virtual environment (some OS probably XP) and run it. The virtual environment is displayed in the connected monitor and the other user uses it using the extra keyboard/mouse and the monitor but without interfering my screen! Is this possible? Stupid? Futuristic? Need more hardware?

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  • Big noise from Power Supply Unity Fa? Should I replace it immediately?

    - by EApubs
    Recently, I started to get a large noise from my PC when switched on. After some time, it disappears. I discovered that the issue is with the Power Supply Unit. Does this mean I have a failing PSU? Will it harm the PC if I didn't replace it immediately? Several years ago I bought a new computer casing which is very weird. Its small and compact. Normally, we have the PSU in the top. But in here, the PSU is on the bottom and right below the hard drive. Recently, two of my hard drives started to show problems. Read errors and bad sectors. Can it be the PSU and the design of the casing? Here's an image of the PSU and the hard drive :

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  • Fortigate VPN Routing issue

    - by user1571299
    I have 200B Fortigate unit with 2 internet WAN connections. I also have a remote site which I'm connected to via IPSEC VPN through WAN1. This site has only one GW IP address. I'd also like to setup a VPN ontop of WAN2 with that specific site as it's destination. The default route for my end is WAN1. My problem is I cant figure out how to have both tunnels up at the same time. What's the best practice for achieving this? Thanks

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  • How to add addtional disks to a Windows 2008 KVM based Guest?

    - by taazaa
    I have a Win 2008 KVM based guest VM running on a Ubuntu 10 host. It is a raw image of 22G. I want to add a "data" drive which would show up as "D:\" drive on the guest. I first created a raw image using: qemu-img create -f raw ~/vmdisk2.img 50G Then, tried attaching it using virsh attach-disk. When that did not work, I tried editing the xml file of the VM directly. Both did not seem to work. I would greatly appreciate any help on how to do this and what the best practice is. I want to keep the base image small, so that I can clone it (hopefully) and then attach necessary storage based on the application at hand. Update: The xml of the vm before adding the second drive: <domain type='kvm'> <name>win08e-vm1</name> <uuid>183a4ba0-1c0b-0b04-ad01-aa7c3a4cb390</uuid> <memory>1048576</memory> <currentMemory>1048576</currentMemory> <vcpu>2</vcpu> <os> <type arch='x86_64' machine='pc-0.12'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='localtime'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/win08e-vm1.img'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/home/taazaa/iso/Win08ER264.iso'/> <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' unit='0'/> </disk> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <interface type='bridge'> <mac address='52:54:00:7f:a7:ae'/> <source bridge='br0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='tablet' bus='usb'/> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/> <video> <model type='vga' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </memballoon> </devices> </domain> Thanks!

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  • What is a good program, with PostScript output (for LaTeX), to make circuit diagrams?

    - by Breakthrough
    Hello; I just found out to my dismay that Visio 2007 does not include the ability to output drawings in EPS/PS formats, which makes it unsuitable for my uses. I wish to create various circuit digrams (including some texts for resistor values, voltage sources, etc...) with most electronic components (resistors, logic gates). Visio was a great tool for this, but I need to include these in lab reports which I am typesetting with LaTeX. The recommended format to include images in LaTeX is PostScript, so the fonts can be properly substituted, and the drawings scale properly. So my question: Is there a Windows program which will allow me to create circuit diagrams, add various labels, and export it to PostScript format?

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  • How to access a site in IIS with no DNS mapping

    - by CiccioMiami
    In my IIS 7.5 hosted in a Windows Server 2008 R2 I have several websites with no DNS address assigned. Let's take for instance the site (as named in IIS) with site name mySite. I have for this site the standard binding with no host name. Suppose that my server IP address is, for instance, 101.22.23.01. Therefore it seems logic to me that in order to access the website, I should place in the address bar of my browser: [IP_address]/[sitename] in this case: 101.22.23.01/mySite but it does not work. Shall I specify something else in the bindings?

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