Bug 829194

Summary:	x11-drivers/nvidia-drivers-390.144 unable to compile with 5.15+ kernel
Product:	Gentoo Linux	Reporter:	Oleksa <leo>
Component:	Current packages	Assignee:	Ionen Wolkens <ionen>
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	leo, soap
Priority:	Normal
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Source for patch - https://nvidia.if-not-true-then-false.com/patcher

Description Oleksa 2021-12-14 17:51:18 UTC

Created attachment 758993 [details]
Source for patch - https://nvidia.if-not-true-then-false.com/patcher

Please, need add support for old NVIDIA driver (390.144) for NVIDIA NVS 5400M GPU (as example) in order to be able compile with mainline kernel 5.15+

Issue description:

NVRM: The NVIDIA NVS 5400M GPU installed in this system is supported through the NVIDIA 390.xx Legacy drivers. Please visit http://www.nvidia.com/object/unix.html for more information.  The 495.44 NVIDIA driver will ignore this GPU. Continuing probe...

.ebuild for existing driver x11-drivers/nvidia-drivers - Available versions:  390.144-r1(0/390) - has unmet dependencies with x11-base/xorg-server (with  available versions (~)21.1.1-r2)

I found patch that fixing issue with kernel line 5.15+ (please, see attached)
I conducted test with manual steps (via ebuild) 
May be there need some fixes in patch, but it working.

Root of problem is: is is necessary to create local overlay or fix(edit) .ebuild manually - not a gentoo-way at all.

Please, update a bit ebuild 390.144, add patch(es) also and make it availagle in gentoo repo for install a driver in a correct way. Thanks!

Comment 1 Ionen Wolkens gentoo-dev

2021-12-14 18:03:42 UTC

Why would you need to modify the ebuild for a patch?

Just use /etc/portage/patches[1]

Also, have no interest in maintaining patches for kernels not supported by NVIDIA. Either use patch locally or use a supported LTS kernel (e.g. 5.10 branch).

When emerging, should've emitted this warning:
 * Kernel 5.15 is either known to break this version of nvidia-drivers
 * or was not tested with it. It is recommended to use one of:
 *   <=sys-kernel/gentoo-kernel-5.13
 *   <=sys-kernel/gentoo-sources-5.13
 * You are free to try or use /etc/portage/patches, but support will
 * not be given and issues wait until NVIDIA releases a fixed version.
 * 
 * Do _not_ file a bug report if run into issues.
 * 

https://wiki.gentoo.org/wiki//etc/portage/patches

Comment 2 Oleksa 2021-12-14 18:10:58 UTC

Ionen Wolkens, great thanks for information!
I never used portage/patches before - it is pretty good decision.
Thanks alot!!!