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I know there are a lot of questions about this -- I've read at least 100 questions about it but still can't find a solution to the Nvidia screen flicker issue. I've had this issue since 11.10. The screen jitters and flickers about every 3-5 seconds. I'm running Ubuntu 12.04 LTS on a Gateway GT5028 with the Nvidia 6100. Any solution would be appreciated. I'd like to see this issue resolved for me.

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3 Answers 3

I had the same problem. You are confused because cogitoergosum assumed that you understand how the command line works. You will need to open a command prompt, and you will need to learn how to use several commands. The only way to truly solve this problem requires working on the command line interface (CLI). CLI skills are extremely valuable, especially in professional computing; so I will help you get started.

First, type man cd and press enter. To escape the manual pages, when you are done reading and want to try out the command cd, type q. On Linux, unlike Windows, man + [command] will bring up the manual pages for any command you desire (just replace the + [command] with your desired command. For example, type man vi to learn how to edit files with vi.

cd /etc/X11/ will take you to the directory containing "xorg.conf". You need to be careful to fix changes to the ownership and permissions of the files when they are edited as the root user.See the man pages for chmod and chown (type man chmod or man chown). You will always want to backup your files before changing them. To backup files, there are a few techniques. You can use cat to output a file's contents and then redirect the output to a new file. Eg. cat /etc/X11/xorg.conf > /etc/X11/xorg.conf.bkp1. You can also use cp or mv, but I usually just use redirection. To see a given directory contents, try ls or ls -l. If you can't see all the output, pipe the output into less by typing ls -l | less.

I found the solution to Nvidia bugs on Linux here for 64 bit: Nvidia & Linux x64 - common problems and solutions Readme - Here's the same readme for 32 bit (x86): Nvidia & Linux x86 - common problems and solutions Readme - 256.44 If you are using different Nvidia drivers for Linux, then you can find similar readme files on the Nvidia site here: Linux Display Driver Archive.

If you really want to increase your skills, you should Google the linux documents on shell scripting.

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Try turning dithering off (disabled) using nvidia-settings. If the problem is resolved, update /etc/X11/xorg.conf to add (Option "FlatPanelProperties" "Dithering=Disabled") to the Screen section. Good luck.

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How to I access the settings? I don't have any nvidia drivers activated right now because everytime I activate one it brings up a black screen on the next start up. I'm able to access TTY when it does this just can't see the desktop. –  spazmatic1221 Mar 5 '13 at 14:11
    
Settings are available via nvidia-settings. If nvidia driver has not been installed, you can either 1) install through system settings->additional drivers, 2) sudo apt-get update;sudo apt-get install nvidia-current nvidia-settings, or 3) download/install the driver directly from nvidia. Everyone has their preference, but I tend to favor the latter. Good luck and have fun. –  cogitoergosum Mar 5 '13 at 19:09
    
Alright I've installed the nvidia current driver. Thankfully no black screen this time. But I see nothing about dithering in Nvidia X Server Settings –  spazmatic1221 Mar 6 '13 at 4:36
    
The default nvidia-settings does not include the option. If your screen flicker is still an issue, consider downloading the driver from nvidia. You can refer to instructions on this q&a board. –  cogitoergosum Mar 6 '13 at 11:23
    
Could you give me a quick breakdown on how to edit the settings via command line. –  spazmatic1221 Mar 7 '13 at 14:07

Im using Linux Mint 17 with same issues plagued for some time. Discovered through linux software manager you can just type nvidia in the search bar (as in my case) "graphics" related of course and click on; Nvidia-Current-Updates. Once installed problem was resolved and performance when up. According to Nvidia website - linux software manager there are 26M drivers the program manager will analyze and download the specific driver. My problem has been solved.

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Answers rooted in special tools from Linux Mint are not compatible with AskUbuntu as Ubuntu does not possess those tools. –  Stephen Michael Kellat Nov 7 at 3:18

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