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I was having trouble with the old VGA cable I was using for my monitor. So I got a new one off of Amazon real cheap, it says it's High Res HD15 on the posting I got it from. However when I boot into Kubuntu or Ubuntu, the resolution is wayyyyyyy too low and the proper one is not appearing in the settings. Also, the GRUB menu is a different color (dark blue vs. light blue) and the resolution is smaller.

The proper resolution is displayed in Windows.

Is there any way to fix this? do I have to buy a new cable?

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  • OK, thank you, but I was able to get the appropriate resolution and performance when I replaced the cable without turning off the computer when I first got the new cable. Also, when I remove the nVidia driver I can get up to 1024x768 which is a little less than what I need. The nVidia settings say I have a CRT, and they won't show me layout options because the current default is 640x480.
    – Richard
    Jan 10, 2012 at 18:21
  • I have now tried uninstalling and reinstalling the drivers with APT, and also from the nvidia website which has left Kubuntu entirely unbootable, with my monitor saying "out of range" after a garbled splash screen.
    – Richard
    Jan 11, 2012 at 19:04

2 Answers 2

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Few options/ideas:

  • Good VGA cables are not expensive. For about £20 you can buy a 2m, triple-shielded Lindy cable.

  • Good monitors aren't much more, to be fair and will give you much more value than a diamond-encrusted VGA cable. There's a reason DVI and HDMI replaced VGA: they're better.

  • Get somebody else to test the cable in their set up.

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This may seem a bit easy, but have you tried changing resolution back to normal from the Monitors menu. I had an issue with my 64bit Linux Mint once where it would automatically lower the resolution whenever graphic shaders are executed (games)...

Either way I don't trust 64bit Ubuntus anymore....

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