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Groups > linux.debian.bugs.dist > #1079906

Bug#994242: resemble video issue on CML-TGP PCH machine

From hoxp18@noramail.jp
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#994242: resemble video issue on CML-TGP PCH machine
Date 2021-11-07 11:30 +0100
Message-ID <DgNAZ-2zy-1@gated-at.bofh.it> (permalink)
References <CXgPg-4MS-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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Dear Maintainer,

I've also met this situation on my new comet lake machine,
Celeron G5905 (CML-R) with H510 chipset,
then found this #994242 report.

No visible video after initial boot.
Same drm_WARN_ON and call trace.

Maybe "TGP PCH + CML combo" support related (5.14, 2021 Feb):
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4b97039e90bf895a7a1db47411079f0cffe395f6

FYI: freedesktop: drm/i915/cml : Add TGP PCH support
https://patchwork.freedesktop.org/patch/410462/ 

I guess whether 5.10 LTS will merge those patches in the future
will be important for Intel 10/11th gen CPU's iGPU users.

regards,

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Thread

Bug#994242: linux-image-5.10.0-8-amd64: On a DELL Optiplex 5090 the screen goes black on boot John Hughes <john.hughes@calva.com> - 2021-09-14 15:40 +0200
  Bug#994242: resemble video issue on CML-TGP PCH machine hoxp18@noramail.jp - 2021-11-07 11:30 +0100

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