linux-kernel - Re: regression/bisected/6.7rc1: Instead of desktop I see a horizontal flashing bar with a picture of the desktop background on white screen

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Message-ID: <a1d74498-9c71-4e46-9db3-58baac89dc36@leemhuis.info>
Date:   Sun, 26 Nov 2023 15:40:21 +0100
From:   "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Christian König <christian.koenig@....com>,
        "Lee, Alvin" <Alvin.Lee2@....com>
Cc:     Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>,
        "Wheeler, Daniel" <Daniel.Wheeler@....com>,
        "Wu, Hersen" <hersenxs.wu@....com>,
        "Mahfooz, Hamza" <Hamza.Mahfooz@....com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        Linux kernel regressions list <regressions@...ts.linux.dev>
Subject: Re: regression/bisected/6.7rc1: Instead of desktop I see a horizontal
 flashing bar with a picture of the desktop background on white screen

On 16.11.23 11:46, Christian König wrote:
> Am 15.11.23 um 21:08 schrieb Mikhail Gavrilov:
>> On Wed, Nov 15, 2023 at 11:39 PM Lee, Alvin <Alvin.Lee2@....com> wrote:
>>> This change has a DMCUB dependency - are you able to update your
>>> DMCUB version as well?
>>>
>> I can confirm this issue was gone after updating firmware.
>>
>> ❯ dmesg | grep DMUB
>> [   11.496679] [drm] Loading DMUB firmware via PSP: version=0x07002300
>> [   12.000314] [drm] DMUB hardware initialized: version=0x07002300
> 
> Mhm, that's a quite ugly problem.
> 
> The driver is supposed to work with older firmware as well or at least
> issue a warning and provide a reasonable fallback.
> 
> How are we going to handle this?

What happened to this regression? This thread looks stalled and from a
quick search on lore and the amdgpu issue tracker it seems the issue
wasn't discussed anywhere else during the last 10 days, but I might have
missed something.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.

#regzbot poke