FS#74203 - [linux] 5.17 kernel enables `CONFIG_SYSFB_SIMPLEFB` which breaks (some) nvidia platform.

Attached to Project: Arch Linux
Opened by Akatsuki Rui (akiirui) - Wednesday, 23 March 2022, 04:58 GMT
Last edited by Tobias Powalowski (tpowa) - Thursday, 31 March 2022, 13:44 GMT
Task Type Bug Report
Category Packages: Testing
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 3
Private No

Details

Description:

Regress of https://bugs.archlinux.org/task/72645

https://github.com/archlinux/svntogit-packages/commit/7f98cfac6f93f0c57b930d42da2f95e77076fbc4#diff-6503b30d816e211d1909eed3e1eff5f9105fdc48f5735921a59f4906f99415beR2288


Additional info:
* package version(s)
- linux 5.17
* config and/or log files etc.
* link to upstream bug report, if any
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Thursday, 31 March 2022, 13:44 GMT
Reason for closing:  Fixed
Additional comments about closing:  5.17.1
Comment by Jan Alexander Steffens (heftig) - Wednesday, 23 March 2022, 06:57 GMT
please verify if it's actually still broken.
Comment by Andreas Flanitzer (the_shiver) - Wednesday, 23 March 2022, 11:16 GMT
slightly less broken than with 5.15 as in there is somewhat discernable output on the screen tho the bootsplash doesn't get cleared.

attachment #1 is a screenshot taken with fbgrab which looks boringly normal
attachment #2 is a photo of what actually appears on screen

it's perfectly possible to log into the system and once one starts X/Wayland everything works as expected.

gpu driver is nvidia-dkms 510.54, gpu is a gtx1080ti.
   framebuffer-5.17-fbgrab.png (15.3 KiB)
   framebuffer-5.17-photo.jpg (1.97 MiB)
Comment by Jan Alexander Steffens (heftig) - Wednesday, 23 March 2022, 13:27 GMT
are you booting with nvidia-drm.modeset=1 ?
Comment by Akatsuki Rui (akiirui) - Wednesday, 23 March 2022, 14:37 GMT
Xorg thinks I have two monitor. One unknown monitor and one real monitor.
And it let my desktop resolution equal 3840*2160(unknown monitor) + 3840*2160(real monitor), and output to my real monitor.

Rollback to 5.16.16 (no SIMPLEFB) can fix it. And I have same issue in 5.15 (with SIMPLEFB)
Comment by Andreas Flanitzer (the_shiver) - Wednesday, 23 March 2022, 14:55 GMT
yeah. with nvidia-drm.modeset=0 the console looks as it should.


EDIT: only noticed now - switching VTs causes the display(s) to go blank and eventually turn off due to no input signal detected. going back to the first VT brings the display(s) back. happens regardles of modesetting.
Comment by Jonathon (jonathon) - Thursday, 24 March 2022, 00:45 GMT
I think I'm hitting this with `linux-zen` too; my NVIDIA laptop will boot to a green GDM and TTYs are black. `linux-mainline` at 5.17 is fine.
Comment by Jan Alexander Steffens (heftig) - Thursday, 24 March 2022, 07:56 GMT
Yeah, it's currently enabled there, too. Will be disabled with 5.17.1 at the latest.

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