[SOLVED] NO DVI and low res graphics on NVIDIA 8400GS

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http://ubuntuforums.org – A few months ago, I started to experience problems with my monitor. Now and then, the display would not be able to detect the computer again (showing the no source dialog). Rebooting then generally fixed the issue, sometimes not, and sometimes it would work but in a low graphics mode. At some point, this started to worsen (I had already tried a lot of things at that point, see list below), as sometimes even rebooting 10 times wouldn't work. Eventually I connected my display to the VGA port, which worked for about a month, but then it suddenly started to boot in a very low resolution (640x480) (Hardware)