Adding Mirsad Todorovac (who reported a similar issue).
On 1/19/24 19:39, Jens Axboe wrote:
My trusty R7525 test box is failing to show a console, or in fact anything,
on current -git. There's no output after:
Loading Linux 6.7.0+ ...
Loading initial ramdisk ...
and I don't get a console up. I went through the bisection pain and
found this was the culprit:
commit df67699c9cb0ceb70f6cc60630ca938c06773eda
Author: Thomas Zimmermann <tzimmermann@xxxxxxx>
Date: Wed Jan 3 11:15:11 2024 +0100
firmware/sysfb: Clear screen_info state after consuming it
Reverting this commit, and everything is fine. Looking at dmesg with a
buggy kernel, I get no frame or fb messages. On a good kernel, it looks
ilke this:
[ 1.416486] efifb: probing for efifb
[ 1.416602] efifb: framebuffer at 0xde000000, using 3072k, total 3072k
[ 1.416605] efifb: mode is 1024x768x32, linelength=4096, pages=1
[ 1.416607] efifb: scrolling: redraw
[ 1.416608] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[ 1.449746] fb0: EFI VGA frame buffer device
Happy to test a fix, or barring that, can someone just revert this
commit please?
I've temporarily added a revert patch into the fbdev for-next tree for now,
so people should not face the issue in the for-next series:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev.git/commit/?h=for-next
I'd like to wait for Thomas to return on monday to check the issue
as there are some other upcoming patches in this area from him.
Helge
