linux-kernel - Re: [REGRESSION] HDMI connector detection broken in 6.3 on Intel(R) Celeron(R) N3060 integrated graphics

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Message-ID: <87il9l2ymf.fsf@gmail.com>
Date:   Fri, 11 Aug 2023 21:10:05 +0300
From:   Mikhail Rudenko <mike.rudenko@...il.com>
To:     Thorsten Leemhuis <regressions@...mhuis.info>
Cc:     Thomas Zimmermann <tzimmermann@...e.de>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        linux-kernel@...r.kernel.org, regressions@...ts.linux.dev,
        dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Subject: Re: [REGRESSION] HDMI connector detection broken in 6.3 on Intel(R)
 Celeron(R) N3060 integrated graphics


Hi, Thorsten!

On 2023-08-11 at 08:45 +02, Thorsten Leemhuis <regressions@...mhuis.info> wrote:

> [CCing the i915 maintainers and the dri maintainers]
>
> Hi, Thorsten here, the Linux kernel's regression tracker.
>
> On 10.08.23 21:33, Mikhail Rudenko wrote:
>> The following is a copy an issue I posted to drm/i915 gitlab [1] two
>> months ago. I repost it to the mailing lists in hope that it will help
>> the right people pay attention to it.
>
> Thx for your report. Wonder why Dmitry (who authored a4e771729a51) or
> Thomas (who committed it) it didn't look into this, but maybe the i915
> devs didn't forward the report to them.
>
> Let's see if these mails help. Just wondering: does reverting
> a4e771729a51 from 6.5-rc5 or drm-tip help as well?

I've redone my tests with 6.5-rc5, and here are the results:
(1) 6.5-rc5 -> still affected
(2) 6.5-rc5 + revert a4e771729a51 -> not affected
(3) 6.5-rc5 + two patches [1][2] suggested on i915 gitlab by @ideak -> not affected (!)

Should we somehow tell regzbot about (3)?

> BTW, there was an earlier report about a problem with a4e771729a51 that
> afaics was never addressed, but it might be unrelated.
>
> https://lore.kernel.org/all/20230328023129.3596968-1-zhouzongmin@kylinos.cn/
>
> Ciao, Thorsten

[1] https://patchwork.freedesktop.org/patch/548590/?series=121050&rev=1
[2] https://patchwork.freedesktop.org/patch/548591/?series=121050&rev=1

--
Best regards,
Mikhail Rudenko