linux-kernel - Re: 6.10/bisected/regression - commits bc87d666c05 and 6d4279cb99ac cause appearing green flashing bar on top of screen on Radeon 6900XT and 120Hz

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Message-ID: <b6c440ca-e63e-429b-af41-5f27d4b8b2a2@leemhuis.info>
Date: Fri, 21 Jun 2024 09:56:21 +0200
From: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@...mhuis.info>
To: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>,
 Alex Deucher <alexdeucher@...il.com>
Cc: Hamza Mahfooz <hamza.mahfooz@....com>, Rodrigo.Siqueira@....com,
 "Deucher, Alexander" <alexander.deucher@....com>,
 amd-gfx list <amd-gfx@...ts.freedesktop.org>,
 dri-devel <dri-devel@...ts.freedesktop.org>,
 Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
 Linux regressions mailing list <regressions@...ts.linux.dev>
Subject: Re: 6.10/bisected/regression - commits bc87d666c05 and 6d4279cb99ac
 cause appearing green flashing bar on top of screen on Radeon 6900XT and
 120Hz

On 09.06.24 23:19, Mikhail Gavrilov wrote:
> On Fri, Jun 7, 2024 at 6:39 PM Alex Deucher <alexdeucher@...il.com> wrote:
>>
>> --- a/drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.c
>> +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.c
>> @@ -944,7 +944,7 @@ void optc1_set_drr(
>>                                 OTG_V_TOTAL_MAX_SEL, 1,
>>                                 OTG_FORCE_LOCK_ON_EVENT, 0,
>>                                 OTG_SET_V_TOTAL_MIN_MASK_EN, 0,
>> -                               OTG_SET_V_TOTAL_MIN_MASK, 0);
>> +                               OTG_SET_V_TOTAL_MIN_MASK, (1 << 1)); /* TRIGA */
>>
>>                 // Setup manual flow control for EOF via TRIG_A
>>                 optc->funcs->setup_manual_trigger(optc);
> 
> Thanks, Alex.
> I applied this patch on top of 771ed66105de and unfortunately the
> issue is not fixed.
> I saw a green flashing bar on top of the screen again.

Hmmm, I might have missed something, but it looks like nothing happened
here since then. What's the status? Is the issue still happening? Any
solution in sight?

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