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My system: Ubuntu 12.04 LTS. My graphic card: nVidia GeForce gt430. My monitor is Samsung LE26R51B. And my connection is digital (HDMI).
The current screen resolution is not good at all, I can't see the top bar and the left one.

Here are the available resolutions in settings:

1920*1080
1280*720
960*600  
and lower resolutions

But with no one of these I can see the top bar in it. They are bigger than the monitor.


In Windows 7 I use 1202*670 resolution.

How can I change the resolution to what I want exactly?

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It's rather complicated, but have you checked out this guide? –  SirCharlo Oct 11 '12 at 14:56
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i get this error: xrandr: Failed to get size of gamma for output default –  Dz WarSoldier Oct 11 '12 at 15:59
    
@SirCharlo I know your comment and this question are rather old, but I found your link to work quite well. Do you think you can add the gist of that as an answer? –  Nil Jun 26 '13 at 14:56
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3 Answers

First I'd try to install the nvidia binary driver (there's a tool named "Additional Drivers" or "Jockey" that will assist you). If that doesn't help, you've won the Jackpot. Your prize is editing the xorg.conf file.

First have a look at this xkcd comic: https://xkcd.com/963/

Be warned that if you misconfigure xorg.conf, you might end up without a graphical session, just with a command line. Don't worry, you can simply (backup and then) delete xorg.conf and the graphical session should work again.

Then have a look at that guide: https://help.ubuntu.com/community/NvidiaResolutionXorgConf

Depending on the driver you are using, you might need to put a different driver in xorg.conf - for the binary nvidia driver it's "nvidia", for Nouveau it's "nouveau" I think, and for the old nv-driver it's "nv".

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This may seem like a silly suggestion, but have you tried using the monitor's buttons/on-screen display to change how the screen is displayed? There should be an "Auto-adjust" item.

Additionally, 1202x670 sounds like a very strange and non-standard resolution. While it's not in the list that you provided, have you tried 1360x768 instead?

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You may be able to set the right resolution and also change the driver via a graphical interface by installing the utility called nvidia-settings. I've used it on my desktop many times.

sudo apt-get install nvidia-settings

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