(cc: gregkh) Hi Jocelyn Am 13.11.23 um 10:36 schrieb Jocelyn Falempe:
On 13/11/2023 09:34, Keno Fischer wrote:Greetings, When connected to a remote machine via the BMC KVM functionality, I am experiencing screen freezes on boot when using 6.5 stable, but not master. The BMC on the machine in question is an ASpeed AST2600. A quick bisect shows the problematic commit to be 2fb9667 ("drm/ast: report connection status on Display Port."). This is commit f81bb0ac upstream. I believe the problem is that the previous commit in the series e329cb5 ("drm/ast: Add BMC virtual connector") was not backported to the stable branch. As a consequence, it appears that the more accurate DP state detection is causing the kernel to believe that no display is connected, even when the BMC's virtual display is in fact in use. A cherry-pick of e329cb5 onto the stable branch resolves the issue.Yes, you're right this two patches must be backported together.I'm sorry I didn't pay enough attention, that only one of the two was picked up for the stable branch.Is it possible to backport e329cb5 to the stable branch, or should I push it to drm-misc-fixes ?
I think stable, which is in cc, will pick up commit e329cb5 semi-automatically now. Otherwise, maybe ping gregkh in a few days about it.
Best regards Thomas
Best regards,
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstrasse 146, 90461 Nuernberg, Germany GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman HRB 36809 (AG Nuernberg)
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