Bug 832702

Summary:	x11-drivers/nvidia-drivers-510.47.03 - Kernel BUG
Product:	Gentoo Linux	Reporter:	Richard Ostrow <rich>
Component:	Current packages	Assignee:	Ionen Wolkens <ionen>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	gentoo, ionen, soap
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	dmesg output emerge --info

Description Richard Ostrow 2022-02-04 14:24:34 UTC

Upon installing an old (known-good) GeForce RTX 2080 Ti into my laptop via an Alienware Graphics Amplifier (also known good), I get a kernel BUG as shown in the to-be-attached dmesg. Hardware works fine under Windows, and the amplifier worked fine with an old GeForce GTX 960 I previously had loaded.

Reproducible: Always

Steps to Reproduce:
1. Plug in an Alienware Graphics Amplifier loaded with a GeForce RTX 2080 Ti
2. Boot Gentoo, loading the nvidia drivers
3. See kernel BUG. Any attempt to use the hardware puts the machine in an odd state that effectively makes shutdown difficult due to timeouts
Actual Results:  
Kernel BUG as shown in dmesg

Expected Results:  
Should fire up as an additional card

Comment 1 Richard Ostrow 2022-02-04 14:25:29 UTC

Created attachment 764320 [details]
dmesg output

dmesg output after BUG

Comment 2 Richard Ostrow 2022-02-04 14:26:42 UTC

Created attachment 764321 [details]
emerge --info

Comment 3 Ionen Wolkens gentoo-dev

2022-02-04 15:04:10 UTC

Sounds like an upstream driver issue (and likely hardware-specific) that I doubt Gentoo can do anything about.

You may have better luck reporting this to NVIDIA directly instead.

May want to check if it works with stable drivers though (470.94). Good to know if it's a regression or a long standing issue.