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 ?
Best regards,
--
Jocelyn
Cheers,
Keno
