Bug#991546: Acknowledgement (linux-image-5.10.0-8-amd64: soft lockup after screen does a sleep cycle (dpms off then on))

To: 991546@bugs.debian.org
Subject: Bug#991546: Acknowledgement (linux-image-5.10.0-8-amd64: soft lockup after screen does a sleep cycle (dpms off then on))
From: Marc <dkm@kataplop.net>
Date: Tue, 27 Jul 2021 10:43:28 +0200
Message-id: <[🔎] 877dhc170v.fsf@arrakis.kataplop.net>
Reply-to: Marc <dkm@kataplop.net>, 991546@bugs.debian.org
In-reply-to: <handler.991546.B.162737037732564.ack@bugs.debian.org> (Debian Bug Tracking System's message of "Tue, 27 Jul 2021 07:21:04 +0000")
References: <[🔎] 162737037178.9623.7586753530651320434.reportbug@arrakis.kataplop.net> <handler.991546.B.162737037732564.ack@bugs.debian.org> <[🔎] 162737037178.9623.7586753530651320434.reportbug@arrakis.kataplop.net>

I'm adding some more info as I discover here that my kernel is tainted:

 * SMP kernel oops on an officially SMP incapable processor

I guess the reason is that my ryzon 1600 has an hw bug and I need to
disable its C6 state by writing in some MSR.

I don't think this is related to my problem, but can verify the
bug still happens with MSR untouched if you think it is worth it.

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Follow-Ups:
- Bug#991546: Acknowledgement (linux-image-5.10.0-8-amd64: soft lockup after screen does a sleep cycle (dpms off then on))
  - From: Marc <dkm+debian@kataplop.net>

References:
- Bug#991546: linux-image-5.10.0-8-amd64: soft lockup after screen does a sleep cycle (dpms off then on)
  - From: Marc <dkm+debian@kataplop.net>

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