Re: [Bug Report] Desktop monitor sleep regression

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added some CCs Geert added in his reply

On 07.12.21 08:20, Thorsten Leemhuis wrote:
> 
> [TLDR: adding this regression to regzbot; most of this mail is compiled
> from a few templates paragraphs some of you might have seen already.]
> 
> Hi, this is your Linux kernel regression tracker speaking.

/me again

What's up here? We are getting close to rc6, but there afaics wasn't any
reply of substance since the report ten days ago. Hence:

Could anybody please comment on this? Imre Deak, the commit Brandon
found in the bisection contains a patch of yours, do you maybe have an
idea what's up here?

Ciao, Thorsten

#regzbot poke

> Adding the regression mailing list to the list of recipients, as it
> should be in the loop for all regressions, as explained here:
> https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html
> 
> Also adding the authors and reviewers of the culprit and two appropriate
> mailing lists.
> 
> On 07.12.21 01:21, Brandon Nielsen wrote:
>> Monitors no longer sleep properly on my system (dual monitor connected
>> via DP->DVI, amdgpu, x86_64). The monitors slept properly on 5.14, but
>> stopped during the 5.15 series. I have also filed this bug on the kernel
>> bugzilla[0] and downstream[1].
>>
>> I have performed a bisect, first "bad" commit to master is
>> 55285e21f04517939480966164a33898c34b2af2[1], the same change made it
>> into the 5.15 branch as e3b39825ed0813f787cb3ebdc5ecaa5131623647.
> 
> TWIMC: That was for 5.15.3
> 
>> I have
>> verified the issue exists in latest master
>> (a51e3ac43ddbad891c2b1a4f3aa52371d6939570).
>>
>> Steps to reproduce:
>>
>>   1. Boot system (Fedora Workstation 35 in this case)
>>   2. Log in
>>   3. Lock screen (after a few seconds, monitors will enter power save
>> "sleep" state with backlight off)
>>   4. Wait (usually no more than 30 seconds, sometimes up to a few minutes)
>>   5. Observe monitor leaving "sleep" state (backlight comes back on),
>> but nothing is displayed
>>
>> [0] - https://bugzilla.kernel.org/show_bug.cgi?id=215203
>> [1] - https://bugzilla.redhat.com/show_bug.cgi?id=2028613
> 
> To be sure this issue doesn't fall through the cracks unnoticed, I'm
> adding it to regzbot, my Linux kernel regression tracking bot:
> 
> #regzbot ^introduced 55285e21f04517939480966164a33898c34b2af2
> #regzbot title fbdev/efifb: Monitors no longer sleep (amdgpu dual
> monitor setup)
> #regzbot ignore-activity
> 
> Reminder: when fixing the issue, please add a 'Link:' tag with the URL
> to the report (the parent of this mail), then regzbot will automatically
> mark the regression as resolved once the fix lands in the appropriate
> tree. For more details about regzbot see footer.
> 
> Sending this to everyone that got the initial report, to make all aware
> of the tracking. I also hope that messages like this motivate people to
> directly get at least the regression mailing list and ideally even
> regzbot involved when dealing with regressions, as messages like this
> wouldn't be needed then.
> 
> Don't worry, I'll send further messages wrt to this regression just to
> the lists (with a tag in the subject so people can filter them away), as
> long as they are intended just for regzbot. With a bit of luck no such
> messages will be needed anyway.
> 
> Ciao, Thorsten, your Linux kernel regression tracker.
> 
> P.S.: As a Linux kernel regression tracker I'm getting a lot of reports
> on my table. I can only look briefly into most of them. Unfortunately
> therefore I sometimes will get things wrong or miss something important.
> I hope that's not the case here; if you think it is, don't hesitate to
> tell me about it in a public reply. That's in everyone's interest, as
> what I wrote above might be misleading to everyone reading this; any
> suggestion I gave they thus might sent someone reading this down the
> wrong rabbit hole, which none of us wants.
> 
> BTW, I have no personal interest in this issue, which is tracked using
> regzbot, my Linux kernel regression tracking bot
> (https://linux-regtracking.leemhuis.info/regzbot/). I'm only posting
> this mail to get things rolling again and hence don't need to be CC on
> all further activities wrt to this regression.
> 



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