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• Upgrade to Ubuntu 13.10 disabled track pad, brightness, sound on Lenovo Z570

  - by Vizir

  I just upgraded to Ubuntu 13.10 using Ubuntu's software update. It seemed to go all right, however after the system restarted and booted up Ubuntu 13.10, it began experiencing several problems. Some of them were due to expected conflicts with the updated OS, however right now I cannot figure out why certain hardware functions are now "broken" and how to fix them. As far as I can tell, these are the sound (permanently muted), mic (picks up no sound), brightness (set at maximum brightness regardless of using keyboard shortcuts or moving the screen brightness slider) and trackpad (mouse does not move, however plugged-in USB mouse does) This sounds to me like a driver issue, however I cannot figure out how to re-enable my drivers, re-install them, or whatever I have to do here. This did not happen durring my upgrades from 12.04 to 12.10, or 12.10 to 13.04, so I'm at a total loss as to why this happened this time around. My computer is a Lenovo Z570, dual-booting Ubuntu and Windows 7 from GRUB 2. Windows is working fine as far as I can tell.

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• Ubuntu will not start any more !!!!!!!! PLEASE HELP?

  - by mike

  I really need help , I left my computer downloading all the night and i did donwload 35 go of movies ( legal ....) , I restart the computed in the morning then i booted in my encrypted windows partition for my work. Surprise in the evening when i try to boot on linux again , then it doesnt start as it's telling me low graphic mode , and doesnt boot( happen when it's really full ) . Tryed in rescue and it's telling me i have 0 mo free. Tryed in shell comand sdo root rm - Some files IMPOSSIBLE . it's telling me that my files are only in read only file systems. I mouted my other hard drive in windows as well but there is a '' Write protection '' i can only read the files. Please let me know , what solution do i have ? Should i try live usb with ubuntu ? Thanks guys

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• Can't install Ubuntu 13.04

  - by Beaker1210

  I am trying to install Ubuntu 13.04 on a Dell Mini 10 that is currently running Qimo. I want to replace the old operating system entirely. When I turn on the computer and boot from the USB stick it brings up a black screen that says: Boot: I have no idea where to go from here. I created the bootable USB stick using Universal USB installer. I've used the same process for installing Ubuntu on other machines in the past have never had this issue. Thanks in advance for the help. :)

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• How can I learn to write idiomatic C++?

  - by yati sagade

  I am a computer science student, and as a result, I was taught C++ as a better version of C with classes. I end up trying to reinvent the wheel whenever a solution to a complex problem is needed, only to find sometime after that, some language feature or some standard library routine could potentially have done that for me. I'm all comfortable with my char* and *(int*)(someVoidPointer) idioms, but recently, after making a (minor) contribution to an open-source project, I feel that is not how one's supposed to think when writing C++ code. It's much different than C is. Considering that I know objected-oriented programming fairly well, and I am okay with a steep learning curve, what would you suggest for me to get my mind on the C++ track when I'm coding C++?

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• Hangs on Splash Screen after login (auto-login), how can I fix this?

  - by Davious

  Computer: Toshiba Terca A4 OS: Ubuntu Desktop 10.10 After installing 10.10, the splash screen hangs and the mouse pointer appears. Anyone know what I can do to fix this? ~/.xsession-errors has (nautilus:3190): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed btw, Safe-mode works: I do a Ctrl-Alt-F1 into a command prompt session and run ps aux | grep slave then sudo kill [id of gdm-simple-slave] That killed the session and allowed me to login in safe-mode. Safe-mode works. Then I open a terminal and run ps aux | grep nm- sudo kill -9 [id of nm-applet] nm-applet --sm-disable & to get my internet connection up.

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• Ubuntu 12.04 won't boot at all for the first time

  - by user76280

  Using http://www.ubuntu.com/download/desktop/windows-installer So I tried installing Ubuntu for the first time today, and it installed all well, but then it froze at the 'Preparing to run Ubuntu for the first time...' screen. I then proceeded to restart my computer and load Ubuntu from the OS selection screen. My screen completely froze and the picture didn't even come up fully as if my video driver was not installed correctly. Are there any fixes to this problem? Would greatly appreciate it. Possible useful information: Using http://www.ubuntu.com/download/desktop/windows-installer Dual-booting with Windows

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• AMD Catalyst Beta Open Source Drivers

  - by FourZer0

  I'm a gamer with a pretty low-end computer, so I always update to the beta drivers to squeeze out every bit of performance I can get. I currently have 13.3 installed, but I want to install the 14.6 beta. I want to use the open source version, instead of downloading from AMD's website. How can I do that in the terminal? And please explain what the commands mean so I can do it on my own in the future. Thanks in advance!

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• How to bridge the gap between university and job requirements

  - by user1762636

  I study physics and computer science and both studies include minor programming tasks whereas larger tasks are only (potentially) a part of larger projects like for your thesis. When I look at job postings for scientific jobs e.g. in the area of HPC they usually ask for "extensive programming skills in C/C++ and HPC" or the like. This is what I would like to achieve, but frankly I don't know how. I don't mean to mourn, but you can imagine that studying physics/CS means having a busy schedule so I couldn't even work part time as a research assistant to get practice without negative influence on my grades. The second problem is that I lack ideas on what to code in my spare time. I would like to do something useful but even for open source projects you apparently need a whole lot of time and depending on the type of software a lot of experience to be useful. I would be grateful for any advice you can give me.

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• BIOS Always Freezes Instantly

  - by Louis

  I'm not sure if this is necessarily a Ubuntu question, but I've only had the problem since I installed 12.10. When I turn my computer on, the BIOS screen comes up as usual and... nothing else. When I press any key, I hear a loud beep and there's no response. I've tried looking for similar problems, but in most cases people are at least able to interact with their BIOS even if their OS doesn't load. It seems as though it's just completely freezing as soon as I turn it on.

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• SkyDrive Pro Limits

  - by Sahil Malik

  SharePoint 2010 Training: more information I’m putting this here, because I know I’m gonna forget it :) Overall size limits - On an on premises installation, there are no fixed limits on storage. You can configure it as you wish. For Office 365 (SharePoint Online), the limit is 7GB per user. Number of items (documents and folders): You can sync up to 20,000 items in your SkyDrive (personal library). You can sync up to 5,000 items from other libraries, per library. In other words, you could sync 10 libraries (for example), with each library having up to 5000 items. Third, site limits: No fixed limits. It depends on your computer's resources. Hooray! and Happy SharePointing! Read full article ....

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• desktop problems in 12.04

  - by joe

  I recently upgraded from 11.10 (i think that was the last version that was out) to 12.04 and ever since i have been unable to start my computer (hp pavillion dv2815nr) in the "normal" mode, but have had to start it using previous versions. Every time I go to start it, it has a plain red screen (which it does in the previous versions as well) and the desktop icons will not respond. Also, the task bar at top is essentially missing, only having a thin black line there, and also missing the icon bar that "pops out" when you scroll along the left side of the screen. Essentially, I'm locked out in normal mode. Nothing will respond.

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• Keyboard Shortcuts no longer working on Ubuntu 12.04 with GNOME 3.4.1 [closed]

  - by Peter

  Possible Duplicate: What is the keyboard shortcut to minimise a window to launcher in unity? I upgraded from Ubuntu 11.10 (with Gnome 3.2 I think), to Ubuntu 12.04 with Gnome 3.4.1, and my custom shortcuts have stopped working. Opening up the All Settings - Keyboard - Shortcuts, I can see that my shortcuts are still there. All of the shortcuts that I didn't change are working, and my shortcuts in the custom section are working (eg Ctrl+Alt+G to open gedit), its just that the shortcuts I had customised before the upgrade no longer work. Under Launchers, I had changed "Launch Terminal" to Ctrl+Alt+T, and under Navigation I had changed move to workspace above/below to Shift+Ctrl+Up/Down. Investigating further, it looks like the default shortcuts for these actions work (Ctrl+Alt+Up/ Down moves me up and down workpaces), so I'm guessing that there is some discrepancy between what I am seeing on the Keyboard Settings and what my computer is reading from. Any help would be appreciated.

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• How can I programmatically block user input for a given time?

  - by black_puppydog

  As a person working in computer science working offline to avoid facebook and thelike is not always (meaning hardly ever) possible for me since I mostly have to be online to work. I have tried leechblock and similar things but the problem becomes that at some point I start making systems for myself to hack, which is kind of pointless if oyu have root. I would very much like to try out the method described here. (Short version: reboot your PC every time finish a task or get bored with it) Unlike for the author of this blog my work is mainly done not in screen sessions but in IDEs ans other not-so-fast-to-start-up stuff, meaning a full reboot including loading all my programs will take its time. So, the question is: How can I block all user input and preferrably blank the screen for a given amount of time? The idea would then be to have a keyboard shortcut to activate the script/program (which would probably also have to have root i guess?)

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• Ubuntu not mounted?

  - by z3matt

  In Live CD i went in the terminal and when i do 'sudo update-grub' it responds /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?). Here's the breakdown of my drive: sda1 - vfat - Windows 7: FAT32 sda2 - sda3 - nfs - Windows Vista/7: NTFS - Windows 7 sda3/Wubi: - sda4 - Grub2 sda5 - Ubuntu 12.04.1 LTS sda6 - sda7 - sda8 - BIOS Boot Partition Also at the top of the page it states : = No boot loader is installed in the MBR of /dev/sda Any and all help is appreciated and welcomed. When my computer boots, it goes into GRUB and has the options for Windows 7 and Windows Memory Test but no option for Ubuntu. I want to run a dual-boot through it.

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• Dash doesn't launch Gedit at the first try

  - by GUI Junkie

  I'm curious to find out what's going on here. Push the [windows] key -- Dash pops up. Type 'ge' -- 'Text editor' appears. [Enter] -- Nothing happens. With any other program, it launches the program. Repeat the steps and gedit launches. From terminal, gedit doesn't start. In the system monitor, it's 'sleeping'. This happens in my session, in my wife's session on the same computer, gedit runs. Any idea why gedit sleeps at the first launch?

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• Ubuntu crash problem, need fix

  - by Brad

  Upgraded to 12.04 LTS Beta 2, on a Dimension E310. The unity Sidebar crashes while I use Software Center. The only way I can close Software center Is to either power off my computer or use force quit app on the unity side bar. Thats why I believe it's the sidebar crashing instead of the software center. But the other problem is, apport don't recognize the bug so nothing is sent. How do I file this bug? I looked in VAR/Crash and there was no crash report.

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• cannot install ubuntu 12.04 using wubi

  - by vicky

  I recently installed windows 7 on my pc and I have been unsuccessfully trying to install ubuntu 12.04 on it. I used to have dual boot system before both with windows and linux. I changed my hard drive from ide to ahci (default option) burned the ubuntu cd properly (not the .iso file) using the ubuntu 12.04 distribution I downloaded from the official site, set boot priority to cd/dvd but.. Nothing. It tries to boot from the cd, doesn't manage and turn to boot from the hard drive. I also tried wubi. I opened it through windows, got the window that asks me to choose "demo and installation" or "more on ubuntu" (something like that), I choose the first option, reboot manually my computer and it keeps returning on windows mode and doesn't boot from the cd. What can I do? Thanks!

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• Ubuntu 12.10 dual boot windows 7 not working

  - by Joseph

  When i install ubuntu, and the computer restarts it doesn't show the boot managaer so it always boots in windows 7. I tried to change the default os, and ubuntu wasn't even listed in it. Then I read a how to on it, it showed how to size the partions and make them correctly, but it still didn't work. I tried easyBCD and still no success. I've tried installing it about 4-5 times and i still can't get it. What can i do to fix it?

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• Not your typical Permission Denied Question

  - by Todd

  I recently reinstalled Ubuntu 11.10 (64 Bit) on my computer. (My hard drive took a powder) Before, I could "mv" files around with the command. Now when I try I get the permission denied message. I also get the message about "man sudo" when I open my terminal. I am pretty sure I did not get that before. Can I add a user/administrator and change something in my orginal admin that I cannot change myself? I am getting really frustrated with this. I do not recall having the same problem before. I tried qksudo nautilus and it appears to run then it sits there with the cursor blinking but does not move.

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• livecd won't boot 11.04

  - by user20006

  I bought a brand new computer yesterday (Toshiba Satellite Pro L770-10T : Intel Core i5 2410M, 2,3 GHz, 4096 Mo RAM, nVidia GeForce GT 525M) that simply won't boot any livecd I tried. I am using debian/ubuntu for a long time but this is the first time I can't boot a livecd Here is what I tried without success: Ubuntu 11.04 i386 and x64 both desktop and alternate Debian stable livecd old working ubuntu livecds including 8.x 9.x 10.x On ubuntu-10.04.2-desktop-i386.iso I had a kernel panic On 11.04 packages were corrupted although md5 and sha1 were correct I must add that those were burned on different cds CD-R or CD-RW. Any help would be greatly appreciated! Thanks in advance

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• Ubuntu installation always restarts

  - by user1880405

  I downloaded ubuntu-12.04.3-desktop-amd64.iso and mounted it to USB. I restart my laptop, select Install Linux and select language, then it says I have no internet, I press "Continue", and then I click "Install Ubuntu alongside Windows 8" and click "Continue", the computer just restarts and I see the again the same Try-Ubuntu-or-install-it menu. And hence I cannot install Ubuntu. I check md5 hash for iso and it's correct. Thanks for any help. P.S. I couldn't find answer anywhere else.

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• How know if migrate Wubi to partition is successful

  - by meotimdihia

  I run this script https://help.ubuntu.com/community/MigrateWubi and reveiced a message : Found Ubuntu 12.04.1 LTS (12.04) on /dev/sda7 ... migration completed successfully. Then i restarted computer and choose ubuntu from 2 lines Windows Ubuntu . But i don't see what changed, if i am on a partition with Ubuntu or Wubi . @ubuntu:~/sudo fdisk -l /dev/sda1 * 63 167782859 83891398+ 7 HPFS/NTFS/exFAT /dev/sda2 167782860 976768064 404492602+ 5 Extended /dev/sda5 167782923 284337032 58277055 7 HPFS/NTFS/exFAT /dev/sda6 587224008 669566016 41171004+ 7 HPFS/NTFS/exFAT /dev/sda7 284340224 587223039 151441408 83 Linux /dev/sda8 669569024 710529023 20480000 82 Linux swap / Solaris EDIT: I download proposed pack from issue 1.

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• How to install correctly another Linux flavour (in my case PCLinuxOS) together with installed Ubuntu 10.10 ?

  - by Vincenzo

  Hello everybody and Prosperous and Productive Year 2011 !!! I have Ubuntu 10.10 (32bit) installed on my laptop. I would like to install PCLinuxOS (KDE or LXDE version, I don't know yet) on the same computer across with Ubuntu 10.10. I would like to test 'in real conditions' a new PCLinuxOS as well as to resolve my question regarding Audio CD playback issue (mounting DBus timeout error). I would be grateful if somebody can advise me how to perform the installation of another Linux flavour without breakdown :) of existing Ubuntu system ? Thank you in advance for advices and recommendations. Here is my current partitioning:

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• Safest way (i.e. HTTPS, POST, PGP) to send decryption keys through the web?

  - by theGreenCabbage

  I am in the final stages of development for my Revit plugin. This plugin is programmed in C#, and distributed via a DLL. One of the DLLs is an encrypted SQLite database (with proprietary data) that is in the form of a DLL. Currently, in development stages, the decryption key for the SQLite database is hardcoded in my main DLL (the program's DLL). For distribution, since DLLs are easily decompilable, I am in need of a new method to decrypt the DLL. My solution is to send our decryption keys from our servers securely to the host's computer. I was looking in POST, thinking it was more secure than GET, but upon research, it appears it's similarly insecure, only more "obscure" than GET. I also looked into HTTPS, but Hostgator requires extra money for HTTPS use. I am in need of some advice - are there any custom solutions I can do to implement this?

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• No sound card detected [elementary os]

  - by Silouane Gerin

  h61 I set up a computer for my parents with elementary os. I installed an Asus P8H61-I motherboard which contains an integrated Realtek ALC887 sound card. The system doesn't recognize the sound card. Here are the results of some commands: lspci | grep audio doesn't return anything, alsa force-reload return Unloading ALSA sound driver modules: (none loaded). Loading ALSA sound driver modules: (none to reload). aplay -l no soundcard detected and cat /proc/asound/cards let me know that asound doesn't exist. I tried installing Realtek drivers but nothing happened. Here is a log from alsa : Log Can someone help me? Thanks.

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