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I'm very new on Ubuntu and I want to ask how to change resolution because my resolution is stuck at 1024x768 but in Windows I can set my resolution up to 1366x768.

I have use X server to change the resolution to 1366x768 but on the screen, my LCD just show 1280x768 and I have used xrandr too and the result is output VGA is not found and I tried VGA1, LVCD and other stuff but still not found a solution.

Another problem is on startup the splash screen is like a barcode no purple stuff or even the Ubuntu logo just white and black like barcode.

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what is your graphics card? Paste the following command in terminal and post the output lspci | grep VGA – Web-E Aug 7 '12 at 12:38
04:00.0 VGA compatible controller: NVIDIA Corporation G71 [GeForce 7300 GS] (rev a1) – aji Aug 7 '12 at 14:36
Have you installed the additional drivers – Web-E Aug 7 '12 at 15:05
yes i have install nvi (post)(current) – aji Aug 8 '12 at 1:42
and why every time i press ctrl+alt+F1 the screen just suddenly crash and the monitor show random color (per pixel) – aji Aug 8 '12 at 14:10

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