Re: Test result / finding of "drm/amd/display: Consult MCCS FreeSync cap only if requested & supported"

On 6/4/26 15:20, Alex Deucher wrote:
> On Thu, Jun 4, 2026 at 3:59 AM Michel Dänzer <[email protected]> wrote:
>> On 5/29/26 00:02, Deucher, Alexander wrote:
>>>> From: Thorsten Leemhuis <[email protected]>
>>>> On 5/21/26 09:09, Michel Dänzer wrote:
>>>>>
>>>>> Note that some kind of short-term solution is needed for the regression(s) in
>>>> 7.1-rc.
>>>>
>>>> Yeah, that would be good. Makes me wonder how the rough plan to realize
>>>> this looks like? Sounds like Michael's patch[1] that was discussed here is not a
>>>> good option? Reminder, Linus ideally wants known regression fixed by -rc6,
>>>> which is why I'm asking.
>>>
>>> @Wentland, Harry can you sort this out for next week's -fixes PR?
>>
>> Looks like this regression will make it to 7.1 final?
>>
>> I filed https://gitlab.freedesktop.org/drm/amd/-/work_items/5286 3 weeks ago, and proposed a fix the following week. There's been no reaction by any AMD display developer.
>>
>> This is pretty sad.
> 
> @Wentland, Harry , @Leo (Sunpeng) Li come on guys!  I've picked up
> Michel's patch and I'll send an update -PR today.

Thanks Alex.


Note that Pei-Hsin reported an issue when running with my fix at the start of this thread, unfortunately it's still unclear if that's a regression of my fix or happens even without it (in which case it might be another regression of the MCCS related changes for 7.1).

An alternative would be reverting the 4 commits d49086491bcb..8dc88c6a5948.


-- 
Earthling Michel Dänzer       \        GNOME / Xwayland / Mesa developer
https://redhat.com             \               Libre software enthusiast