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• System checks for disk drive error every time it boots

  - by Starx

  When my disk space for the ubuntu installation partition was getting low, from a live cd, I used gparted to increase its volume capacity, but deleting another partition and merging it to the ubuntu partition. Since then onwards, I am receiving disk checking for errors at boot screen for my partitions, always. What seem to be causing this and how to fix it? Update Here is my boot.log if it provides few insight fsck from util-linux 2.19.1 fsck from util-linux 2.19.1 /dev/sda1 was not cleanly unmounted, check forced. ubuntu: clean, 501325/1310720 files, 2958455/5242880 blocks /dev/sda1: 241/51272 files (3.3% non-contiguous), 73541/102400 blocks mountall: fsck /boot [358] terminated with status 1 Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox ... /dev/sda1 is a separate grub partition for my dual OS's

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• Searching for fast skeletal animation algorithm

  - by igf

  Is it theoretically possible to dynamicaly animate scene with 100-150 400 poly characters meshes on high-end GL ES 2.0 mobile devices or i definetley should use prerendered keyframe animation? Scene have only one light source and precalculated shadow maps. View from top like in Warcraft 3. No any other meshes or objects. 2d collision detecting between objects calculated via spatial hashing. It can be any other algorithm besides ragdoll, but it must supply fast and simple skeletal animation for frame with 100+ low poly meshes for each mesh. Any ideas?

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• What to use to make voice chat (and some more) on a web?

  - by Tunococ

  I am trying to make available on my website a voice chat for a small group of people that allows some other means to interact such as text messaging, photo sharing, file sharing, simple drawing and silly games. In other words, something similar to older MSN Messenger, but on the web. Any ideas on what to use? To clarify, I am looking for suggestions on languages and libraries to use. I want to be able to fully customize it as much as possible because I might want to add other (somewhat interesting) functions later. Low-level programming is fine if required, but platform dependency isn't that much preferred.

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• IP fail-over address. Do i need it?

  - by Jon

  I received an email from my web hosting provider where i have 2 dedicated servers saying that from now on I have to pay for my IP fail-over addresses. The server we have hosts a tool used internally by our company. Traffic to it is quite low. No more than 3 people will use it at the same time. If something happens we can wait a day to have the tool up and running again. Is it worth having these fail-over addresses? thanks

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• How do I 'see' an external USB drive connected directly to my Broadband Router?

  - by The Cougar Kid

  This is a very frustrating problem! I have a small home network with several dual boot Ubuntu / Windows computers. I have recently upgraded my Broadband connection and the new router permits the direct attachment of an external USB drive which can back up all of the household's computers. There are no problems when booted under Windows, and there were no problems with older versions of UBUNTU, but since upgrading to 11.10 I can no longer "see" the drive. I used to find it via Network / Windows Network / Home / name of Router, but under 11.10 the same method yields an error message Unable to mount location Failed to retrieve share list from server. Can anyone help please? Starting Nmap 5.21 ( http://nmap.org ) at 2011-12-21 10:06 GMT Stats: 0:02:02 elapsed; 0 hosts completed (1 up), 1 undergoing Service Scan Service scan Timing: About 50.00% done; ETC: 10:10 (0:01:56 remaining) Nmap scan report for 192.168.1.254 Host is up (0.0097s latency). Not shown: 998 filtered ports PORT STATE SERVICE VERSION 554/tcp open rtsp? 7070/tcp open realserver? Service detection performed. Please report any incorrect results at http://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 152.38 seconds sudo tail -n 30 /var/log/syslog [sudo] password for alaric: Dec 21 10:05:42 UPSTAIRS2U wpa_supplicant[882]: WPA: Group rekeying completed with 00:01:3b:8b:63:1a [GTK=TKIP]

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• Audio libraries for PC indie games [closed]

  - by bluescrn

  Possible Duplicate: Cross-Platform Audio API Suggestions What options are out there these days for audio playback/mixing in C++? Primarily for Windows, but portability (particularly to Mac and iOS) would be desirable. For a small indie game, potentially commercial, though - so I'm looking for something free/low-cost. My requirements are fairly basic - I don't need 3D sound, or many-channels - simple stereo is fine. Just need to be able to mix sound effects and a music stream, maybe decoding one or more compressed audio formats (.ogg/.mp3 etc), with all the basic controls over looping, pitch, volume, etc. Is OpenAL more-or-less the standard choice, or are there other good options out there?

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• On-Premises to Office 365: Identity

  - by Sahil Malik

  SharePoint, WCF and Azure Trainings: more information “Run your business, not your mail server.” I am not sure where I read that, but it makes so much sense! Every organization is moving to the cloud, and some just haven’t started their journey yet. One of the fastest and most compelling online cloud based offerings is Office 365. Available in various SKUs, you can get SharePoint, Lync, Exchange, and Office professional as cloud-based offerings. The subscriptions are as low as $2 per user per month to $20 something per user per month. Also, with SharePoint 2013, if you buy Office 365 subscriptions for your users, you don’t need to buy CALs (Client Access Licenses) for on-premises use. Read full article here. Read full article ....

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• Is an 'if password == XXXXXXX' enough for minimum security?

  - by Prof Plum

  If I create a login for an app that has middle to low security risk (in other words, its not a banking app or anything), is it acceptable for me to verify a password entered by the user by just saying something like: if(enteredPassword == verifiedPassword) SendToRestrictedArea(); else DisplayPasswordUnknownMessage(); It seems to easy to be effective, but I certainly would not mind if that was all that was required. Is a simple check on username/password combo enough? Update: The particular project happens to be a web service, the verification is entirely server side, and it is not open-source. Does the domain change how you would deal with this?

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• Wifi doesn't connect if I'm upstairs

  - by user11233

  Hello there, I'm finding that Wifi connects when I'm in the living room, where the internet router etc is. But if I try to connect upstairs it is a no go. Booting in Windows 7 (dual boot :D ) I find that Wifi connects. I find this very confusing and have it since the install. Please help! Kind regards. #sudo lshw -c network *-network description: Wireless interface product: PRO/Wireless 5100 AGN [Shiloh] Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 00 serial: 00:21:5d:1a:63:58 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlagn driverversion=2.6.35-26-generic firmware=8.24.2.12 ip=10.0.0.4 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg resources: irq:49 memory:de200000-de201fff Hope it helps! Hello guys, just tried to connect internet upstairs and to my surprise it does connect. Don't know exactly why. Only thing I've done recently is input the codes said bij Oli. Two things I've done on my own 1: installed Jupiter and 2: installed laptop-mode-tools. I really don't know if this can effect my internet but it's the only thing I can think of. Thanks for all the help, really appreciate it :) PS If someone thinks it might be helpful for others I would like to help find a 'real' solution to this problem. Just post down what I need to post here and I will try my best to help.

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• Finding out the shared hosting providers located in a particular data center

  - by unixman83

  I know the physical location of data-centers that I want my website hosted in. One of these is located on 350 E Cermack in Chicago, IL. My problem is that I am looking for all the providers of low-cost shared hosting in this data center. Do you have a list? And if you do have such a list can you please tell me how you came up with it? I know many discount hosting providers are physically located in the Arizona-Utah areas. But I am located near Chicago.

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• Not enough space left in the hard drive. How to proceed?

  - by jimbobjgr

  Where do I begin... I can hardly do anything on Ubuntu 12.04. I am very close to removing and returning to Windows. First I could not load it because the graphics appeared to be running low but somehow that stopped happening and I could log on. Now I can not download anything or I get this message Cannot write: No space left on device. I tried trouble shooting this issue but every time I try and fix the problem I am blocked by this message E: Write error - write (28: No space left on device) E: Can't mmap an empty file E: Failed to truncate file - ftruncate (9: Bad file descriptor) E: The package lists or status file could not be parsed or opened. $ OLD=$(ls -tr /boot/vmlinuz-* | head -n -2 | cut -d- -f2- | awk '{print "linux-image-" $0}') Ubuntu is also running incredibly slow and I cant get anything done! Please help this is driving me mad!

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• Audio programming resources

  - by rashleighp

  I've been very interested in the last few months about getting in to audio programming (I'm from a musical background). I've been a .NET developer for two years and have also done some objective c for an iPhone app recently. I realise I would probably need to work on my C++ chops and have been having a play around with FMOD EX and doing a lot of research into the industry. I was just wondering if anyone could suggest some good resources for audio programming (be they websites, podcasts, books, videos, online courses etc). Anything from Fourier analysis, low level coding, audio engine creation to audio APIs. I just want to learn as much as possible! Thanks in advance.

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• Shifting from XNA/C# to C++?

  - by Fat_Scout

  For a while now, I've been working with XNA for game design and development (although only for personal use ATM.) Overall, I'm a major fan of XNA itself, and it's overall "feel." However, due to the fact that: XNA seems to have a lack of support (no Metro support, no updates since 2010, etc.) I plan to try and get a job in the game development industry, and due to C++'s dominance, being more familiar with it would be very useful XNA only supports Windows (non-Metro) and Xbox 360, while I am interested in Mac and (to a lesser extent) Linux support. I've been trying to shift over to C++ as my main language. However, I do not want to focus on learning raw DirectX/C++ at this time, so I've been looking for a higher level C++ API (something about the same level as XNA, although something a bit more low-level would be fine) with a feel similar to XNA. So, for someone switching from C#/XNA to C++, what would my best choice(s) be for API's similar to XNA, although unmanaged and running on C++?

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• How to use a mask texture with Kobold2D

  - by alex

  I am an iOS developer but I'm new to cocos2d. I'm working on new game, I use Kobold2D, have cocos2d installed too, and I want to make this effect: I know how is done with Flash, but can't make it with Kobold2D. There's 2 images with the same size: one is a low-res image for the background and the second is a hi-res over the first one. When the "reticle" mask moves, it reveals the second image inside the circle and the background is visible outside only. I googled with no success, saw some Ray Wenderlich projects they weren't helpful.

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• I have problem on 12.10 64bit with nvidia graphics driver opensource and proprietary ! Can't change resolution on 3d games

  - by digitalcrow

  I have problem with nvidia graphics driver opensource and proprietary ! Can't change resolution on 3d games and there's a bug there are no kernel sources installed and thus jockey can't install proprietary drivers. I can't change resolution while on games fullscreen. I tried to install proprietary driver and i couldn't plus i couldn't login to ubuntu it showed only the desktop photo no dash no nothing. -tried to install kernel sources and blacklist+remove Nouveau drivers and then installed the proprietary drivers i hope succesfully. -The problem is the same i can't change resolution on 3d games while on fullscreen. I've installed the sources and be able to install the proprietary nvidia drivers but the problem remains, look what i got in the output of a 3d game exited while i tried to change resolution: X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 150 (XFree86-VidModeExtension) Minor opcode of failed request: 10 (XF86VidModeSwitchToMode) Value in failed request: 0x25b Serial number of failed request: 497 Current serial number in output stream: 499 I'm giving you more details about my system: i have an nvidia geforce gts 250 , 3,4 ghz quadcore amd phenom2 , 8gbytes of ram. The output of: sudo lshw -C display; lsb_release -a; uname -a Is the following: *-display description: VGA compatible controller product: G92 [GeForce GTS 250] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a2 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nvidia latency=0 resources: irq:18 memory:fa000000-faffffff memory:d0000000-dfffffff memory:f8000000-f9ffffff ioport:ef00(size=128) memory:fb000000-fb01ffff No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.10 Release: 12.10 Codename: quantal Linux darkpc 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I like ubuntu's style and user interface but i hate the bad quality of work they do.

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• What sort of data should be sent for mouse-based movement in a multiplayer game?

  - by Daniel

  I'm new to the Multiplayer Rodeo here so please bear with me... I am just getting started and I'm trying to figure out how to deal with movement. I've looked at the question Best way to implement mouse-based movement in MMOG which gives me a pretty good idea, but I'm still struggling with what kind of data should be sent to the server. If a player is on position [x:0, y:0] and I click with the mouse on [x:40, y:40] to start movement, what information should I send to the server? Should I calculate the position based on velocity on client side and just send the expected location? Or should I send current location and velocity and direction? When the server is updating the clients on the players' whereabouts, should the position be sent only, and the clients expected to interpolate/predict movement, or can the direction sent from the client (instead of just coordinates) be used. My concern(or confusion) is regarding the ping/lag frequency of data update and use of a predictive algorithm, as I'd like the movement to be smooth even with a high latency, and prevent ability to cheat(though that's not the top priority).

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• What percentage should a consulting company take off the top of your pay?

  - by JasonStoltz

  Let's say that, hypothetically, a programmer is being paid $40 / hour for a 6 month contract, through a contracting agency. That contracting agency is being paid $85 / hour for every hour that programmer works by the client. So the programmer only actually takes home 47% of what the client is paying per hour. Is this normal, or is the percentage unusually low? Other things to consider: The consulting agency isn't paying benefits P.S (If this is normal, I'd also be curious what the justification would be to take that high of a percentage. And if it is NOT normal, what would be a normal percentage?)

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• Can I share files via SAMBA while in root?

  - by user212501

  I have a couple of things going on here. I am currently running UBUNTU 10.04 in root via "STARTX" command. The reason being is that I keep getting the "LOW GRAPHICS ERROR CODE" and I cant not start up normally. Now I have researched & researched the error. I mean I got my SUDO on........, o.k. I'm really done trying to fix this error. I just wanna re-install. (funny thing. This startx command is how Im using the laptop now, so I know that it is a software issue) So here's my dilemma that is inside another dilemma. I have about 30gigs of info that I need to get off the laptop before I can re-install. Any thoughts What say you? LOTR LOL

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• Deferring questions about salary expectations until the second interview [closed]

  - by Polynomial

  I usually find that interviewers ask about expected salary on a first interview, but I usually feel uncomfortable discussing such details at an early stage. I feel that low-balling a figure might result in under-selling myself, whereas going too high might lose me the chance of a second interview. I also like time to reflect on my interview experience before vocalising my expectations. I recently realised that in one interview I prefixed my salary figure with a justification, which made me come across as a little desperate and unsure of myself. Is there a good way to defer such questions until a second interview (assuming I get one, of course) without hurting my chances or weakening my position?

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• is wisdom of what happens 'behind scenes' (in compiler, external DLLs etc.) important?

  - by I_Question_Things_Deeply

  I have been a computer-fanatic for almost a decade now. I've always loved and wondered how computers work, even from the purest, lowest hardware level to the very smallest pixel on the screen, and all the software around that. That seems to be my problem though ... as I try to write code (I'm pretty fluent at C++) I always sit there enormous amounts of time in front of a text-editor wondering how every line, statement, datum, function, etc. will correspond to every Assembly and machine instruction performed to do absolutely everything necessary for the kernel to allocate memory to run my compiled program, and all of the other hardware being used as well. For example ... I would write cout << "Before memory changed" << endl; and run the debugger to get the Assembly for this, and then try and reverse disassemble the Assembly to machine code based on my ISA, and then research every .dll, library file, linked library, linking process, linker source code of the program, the make file, the kernel I'm using's steps of processing this compilation, the hardware's part aside from the processor (e.g. video card, sound card, chipset, cache latency, byte-sized registers, calling convention use, DDR3 RAM and disk drive, filesystem functioning and so many other things). Am I going about programming wrong? I mean I feel I should know everything that goes on underneath English syntax on a computer program. But the problem is that the more I research every little thing the less I actually accomplish at all. I can never finish anything because of this mentality, yet I feel compelled to know everything... what should I do?

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• 3G dongle and memory card detection

  - by user212632

  My questions is about 3G dongle (Huawei E1752) that I use for my internet on Ubuntu 12.04. The big issue is that ubuntu only recognise the dongle if I plug it in before booting up. But if somehow I loses connection (due to network being low) then the only way to use the 3G dongle again is to reboot my machine, which becomes a pain. I have the same issue with the memory card reader of my laptop whereby it only reads when I insert the card before booting up. My laptop is an Acer V3 -571g. At first I thought it was an issue that the model was quite new, but I have been updating my ubuntu for a while, and this issue has kept being the same

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• Need to test .properties one by one in every possibility?

  - by ??? Shengyuan Lu

  For example, there are some key-value configuration in .properties file. Such like someFeatureEnable=true. It must be bool type value which will be parsed by framework, in my case it's typical Java Spring configuration. Spring will handle the configuration and throw Exception when users set someFeatureEnable=123. My question is: if there many properties in .properties file, Is it worth testing them one by one? It's quite troublesome and low priority. The .properties file is always configured by tech administrator stuff. Limited chances that they will mess up the configuration. Thanks!

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• Ubuntu not booting properly

  - by user86998

  I just bought an Asus EeePC with Ubuntu 12.04 installed on it. After turning it on and performing the updates it didn't boot properly and showed a screen saying it was working on low graphics mode, but I wasn't able to get to the GUI. After some searching, I tried renaming xorg.conf.failsafe to xorg.conf using the mv command. After rebooting I got to the Ubuntu GUI but it was stuck to a 800x600 resolution, track pad not working and not detecting my Wi-Fi. After rebooting again it goes straight to console tty1. I'm completely new to Ubuntu and Linux. If some one can give help? I think the best would probably be to reinstall it from scratch, but I don't know how.

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• Battery icon constantly empty when discharging Vaio VGN-FZ210CE

  - by Alex

  I have a Sony Vaio VGN-210CE laptop, and its battery does not report the drain rate properly. In 11.10 and earlier, the battery icon would update with the percentage, not the estimated time. In 12.04 and 12.10, it estimates by time, which is always some very low value because the estimated drain rate is 700W. I currently have 89% in my battery but the icon is red and empty. If there is an application I should install, or a setting I should change, please let me know. Thanks!

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• How do I run Microsoft Explorer 8 plus on Ubuntu?

  - by user169487

  First off, you should know I'm a Ubuntu newbie who has become passionate since my strangely low-priced Dell computer showed up with Ubuntu loaded on it and it could do almost everything I need from a computer. But now I've got a problem. I know, it's like asking how to use a cassette player on your computer, but in South Korea EVERY website is made to work with exclusively on MS Explorer PLUS Active X, which Microsoft finally killed with 9. Hence, I have to use 8, as there are some Korean sites I need to access for searching, banking, etc. So I see that the way to go is to load PlayOnLinux, but then I it tells me to delete these. Do I really have to do that? Should I just hit "Install Anyway"? Or would that be just asking for trouble?

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