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Some time ago, I had installed NVIDIA-Linux-x86_64-352.30.run

It seemed to work. Certainly I was able to login and graphics was working. All of a sudden, One day I rebooted and the screen resolution was different. My login does not work. I logged in under console and found that the reason appears to be the following message in dmesg:

NVRM: The NVIDIA GPU 0000:01:00.0 (PCI ID: 10de:1381)
NVRM: installed in this system is not supported by the 304.128 NVIDIA Linux driver release.....

Does this mean the newer driver suddenly disappeared? I really don't know what 304.128 is, but it sounds old. I will install the latest, but this makes me extremely suspicious of my computer.

Note that when I boot into Windows everything works fine in 3800x2160 x 30Hz mode. That is definitely the NVIDIA driver under Linux, and the hardware does not appear to be the problem.

TellMeWhy
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Dov
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    What I see is you installed version 352.30, but Ubuntu is now using 304.128. I would definitely try either reinstalling what you had before or installing the latest. – TheWanderer Oct 07 '15 at 14:17
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    It could have been a regular kernel update. You have to re-run NVIDIA-Linux-x86_64-352.30.run every time that happens. 304.128 is one of the legacy drivers Nvidia maintains for older graphics cards. It is a good idea to uninstall it, if it is installed. – mikewhatever Oct 07 '15 at 14:38
  • Thanks! I had no idea kernel updates would invalidate my driver! – Dov Oct 07 '15 at 18:29
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    Related: http://askubuntu.com/questions/680825/how-do-i-install-nvidia-gpu-drivers-properly – Pilot6 Oct 10 '15 at 08:29

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Either due to a kernel update, or corruption, the NVIDIA driver I had manually installed seemed to evaporate. Installing from the repository should be a good way to keep it there:

sudo ubuntu-drivers devices

lists out the packages available, of which the best (at the time of writing) was:

sudo apt-get install nvidia-346

Note this is not the most recent driver, but it's one that is in standard repositories, so it will continue to get updated which is fine with me.

David Foerster
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