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I just did an update from the Linux Mint package manager. I restarted my computer and the update messed tons of stuff up. (I think the main problem is the Nvidia driver that was updated... Even though I switched back to the Nouveau driver in the Driver Manager, the update is still messing things up).

Symptoms: Running in software rendering mode, really slow screen refreshing, dumbed down NVIDIA X Server app, no GPU rendering in Blender, second monitor not getting any signal, etc.

Anyhow, I pulled up the Synaptic Package Manager and looked at the update History and saw the following:

enter image description here

I'm assuming I can just sudo apt-get remove all the packages that were newly installed, but how can I revert the Nvidia packages that were upgraded to their previous version?

Thanks in advance!

(Something terrible happens every time Nvidia tries to update. Last time it wouldn't let my computer even boot. I think I've learned my lesson now, ha ha.)

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Okay, it doesn't help that some guy downvoted my answer (good heck guys, that makes it a lot less likely for people to want to help; it makes people not even read the question in the first place).

Anyhow, I marked libcuda1-384 and nvidia-384 for complete removal, and rebooted my computer. This didn't work, so I tried switching to the Nvidia-384 proprietary driver and rebooted. Everything appears to be back to normal.

This is puzzling for a number of reasons.

  1. My driver manager showed that I was using the Nouveau driver before, which worked perfectly. Using the nvidia-384 would mess things up.
  2. For some reason, removing those packages either allowed nvidia-384 to work, or maybe I was using nvidia-3894 all along and my driver manager was giving me the wrong information.

So I fixed the problem, but I didn't learn why it happened or how to fix it. What the heck?

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