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I needed to update NVidia driver on a CentOS 6.9 and decided to update a bit more. So I did sudo yum update and rebooted. Unfortunately that caused problems with NVidia that were worse than before. I am able to login only remotely now, and discovered that:

FATAL: Module nvidia not found.
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

Oh, I wish I didn't update! Is it possible to revert the latest yum update?

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    You updated the kernel, and current kernel is missing relevant/Key module to low-level interact with your Nvidia card. Formerly, with previous kernel, how did you provided the Nvidia kernel module? By some ready-made packages (rpm, deb, etc)? Or compiling the sources by yourself? In the end: reboot with previous kernel; or update the Nvidia packages; or recompile again from the sources. – Damiano Verzulli May 17 '17 at 6:15
  • Take a look here for possible resolution: askubuntu.com/questions/784392/… – batistuta09 May 17 '17 at 10:47
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Yes, it's possible. Use yum history, and then yum history undo <id of your update> See more info in this article.

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