Re: [Bug Report] Desktop monitor sleep regression #forregzbot

[Thorsten Leemhuis <regressions@leemhuis.info>]

On 17.12.21 18:19, Thorsten Leemhuis wrote:
> On 17.12.21 15:52, Imre Deak wrote:
>> On Fri, Dec 17, 2021 at 03:46:21PM +0100, Thorsten Leemhuis wrote:
>>> 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?
>>
>> Yes,
>> https://bugzilla.kernel.org/show_bug.cgi?id=215203
>>
>> based on which the problem is somehere in the AMD driver.
> 
> Ha, sorry for the noise then, I really feel stupid: I have no idea why I
> didn't check the bug report for an update, as I do normally do. Much
> have slipped through. Ohh well, hopefully we one day have have a central
> place to handle these things.

For the record without anyone else in CC:

Ha, now I know why I missed that, I forgot to tell regzbot about the
bugzilla tickets. To fix this:

#regzbot link: https://bugzilla.redhat.com/show_bug.cgi?id=2028613
#regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=215203

Ciao, Thorsten (wearing his 'Linux kernel regression tracker' hat).

TWIMC: this mail is primarily send for documentation purposes and for
regzbot, my Linux kernel regression tracking bot. These mails usually
contain '#forregzbot' in the subject, to make them easy to spot and filter.

>>> 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.
>>>>
>>