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On the official NVIDIA forum, an employee put out an announcement warning NVIDIA GPU owners that the Linux Kernel 5.9 and later is currently unsupported. It's worth noting they posted that in the CUDA forum, so other workloads like gaming may work as normal.

In the post they mention Kernel 5.9+ is currently "incompatible" with any of their drivers, and they're suggesting to wait until "mid-November" for a fresh NVIDIA driver update which is expected to bring support for it. They're "working diligently" to get ready to support it.

So what's going on? As it's quite unusual for such an announcement to be made. Well, NVIDIA don't appear to be saying in public why it's happening. However, we sort-of know and it's a complicated one that involves GPL licensing, Linux Kernel modules and Linux Kernel developers not being happy about how a patch was sent in by Facebook to the Kernel mailing list that would only work with the NVIDIA driver.

The result of the colourful discussion around it was a patch that was merged in, which mentions that it was designed to "prevent GPL shim modules that are used to circumvent _GPL exports" and that they will now be properly rejected.

The good news is NVIDIA are on it, and soon they will get a new fully-supported driver out. Until then, if you're on an Arch-based distribution, I can suggest trying out the NVIDIA installer from Tk-Glitch over here which seems to work quite well.

Article taken from GamingOnLinux.com.
Tags: Drivers, NVIDIA
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Another reason why I hope AMD will finally release some GPUs worth ditching my two GTX 1080s x.x

I'm waiting for this since years D:
Ehvis 19 Oct
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There was a time when upgrading to the latest kernel version was not the way to go and should be left to those living on the edge. Something that is still possible with nvidia nowadays since new graphics drivers don't depend on new kernel versions. I don't remember ever upgrading my kernel without a distro update. Sounds to me like having this issue is a hint.
Luke_Nukem 19 Oct
They really should open their drivers up under GPL. It would save them and others so many headaches, plus gain some extra contributors. From what I recall of a discussion somewhere (ha! my friends uncles sister heard) they won't due to their drivers being a competitive edge.
Seegras 20 Oct
5.8.16 is out, so you don't need to go to 5.9, which also fixes that: https://github.com/google/security-research/security/advisories/GHSA-h637-c88j-47wq (Yes, that's a remote-root exploit via bluetooth. You really WANT to upgrade. Vulnerable is kernel 4.8.x to 5.8.15, except on android).


Last edited by Seegras on 20 October 2020 at 9:33 am UTC
lelorrain 20 Oct
The more the reason NOT to rush to update when you do not really need it. I am still on Ubuntu 18.04.5 with kernel 5.4.0-51, I got caught last July when I tried to upgrade to 20.04 ... it destroyed my system! Since I setup a test machine on which I am going to try 20.04.1 and see how it works.

RD
tandem 31 Oct
Hello,
I am an Debian Sid (with a ten year old core-i7 and a GTX-970).
With the last Debian update and Kernel 5.9 the nvidia driver didn't work anymore as written before.

The experimental driver helped:

With root:
-> insert in sources.list (nano /etc/apt/sources.list):
deb http://deb.debian.org/debian experimental main contrib non-free

then:
dpkg --add-architecture i386
apt update
apt upgrade

apt -t experimental install nvidia-driver
apt -t experimental install libgl1-nvidia-glvnd-glx:i386

Since one week, all is working as before. The system is stable.
omicron-b 1 Nov
Quoting: tandemHello,
I am an Debian Sid (with a ten year old core-i7 and a GTX-970).
With the last Debian update and Kernel 5.9 the nvidia driver didn't work anymore as written before.

The experimental driver helped:

With root:
-> insert in sources.list (nano /etc/apt/sources.list):
deb http://deb.debian.org/debian experimental main contrib non-free

then:
dpkg --add-architecture i386
apt update
apt upgrade

apt -t experimental install nvidia-driver
apt -t experimental install libgl1-nvidia-glvnd-glx:i386

Since one week, all is working as before. The system is stable.
Yeah, just tried 5.9 on Debian Testing. Black screen. Rolled back to 5.8, I'm not in a hurry.
g000h 1 Nov
Debian 11 Bullseye (Testing) here and I had precisely this problem following my package upgrade about a week ago.

Although Kernel 5.9 is installed, I'm selecting the older 5.8 kernel in the grub2 boot menu, to allow my Nvidia drivers to work properly. I'm happy enough to wait a couple of weeks for the new Nvidia driver modules to be compatible with kernel 5.9, however I'd definitely prefer it if things like this didn't happen!
omicron-b 1 Nov
Quoting: g000hDebian 11 Bullseye (Testing) here and I had precisely this problem following my package upgrade about a week ago.

Although Kernel 5.9 is installed, I'm selecting the older 5.8 kernel in the grub2 boot menu, to allow my Nvidia drivers to work properly. I'm happy enough to wait a couple of weeks for the new Nvidia driver modules to be compatible with kernel 5.9, however I'd definitely prefer it if things like this didn't happen!
Well, Testing is about testing, right?)
I will try to stay on Debian 11 after the freeze for as long as I can to enjoy rock stable system for a while.
g000h 6 Nov
Good News: Nvidia's driver fix seems to have gone through okay for Debian 11 Bullseye (testing) on 6th November 2020 (Earlier than I expected).

Today I ran "apt update && apt upgrade" and the new Nvidia driver 450.80.02 was installed and it is working with Linux kernel 5.9.0-1 so I don't need to choose the older kernel option in my boot menu.
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