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Bug#981639: linux-image-amd64: external hdmi screen not usable - blue taint and low resolution

Started bymdedonno <mdedonno1337@gmail.com>
First post2021-02-02 13:50 +0100
Last post2021-02-02 19:10 +0100
Articles 3 — 3 participants

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  Bug#981639: linux-image-amd64: external hdmi screen not usable - blue taint and low resolution mdedonno <mdedonno1337@gmail.com> - 2021-02-02 13:50 +0100
    Bug#981639: more informations Marco De Donno <mdedonno1337@gmail.com> - 2021-02-02 17:00 +0100
    Processed: Re: Bug#981639: linux-image-amd64: external hdmi  screen not usable - blue taint and low resolution "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-02-02 19:10 +0100

#69416 — Bug#981639: linux-image-amd64: external hdmi screen not usable - blue taint and low resolution

Frommdedonno <mdedonno1337@gmail.com>
Date2021-02-02 13:50 +0100
SubjectBug#981639: linux-image-amd64: external hdmi screen not usable - blue taint and low resolution
Message-ID<BE3i2-3Pk-3@gated-at.bofh.it>
Package: linux-image-amd64
Version: 4.19+105+deb10u9
Severity: critical
Justification: breaks the whole system
X-Debbugs-Cc: mdedonno1337@gmail.com

Dear Maintainer,

   * Situation summary

I installed Debian 10, and updated the apt source file to point to bullseye, and made all updates as needed.

When the kernel was updated from 5.9 to 5.10.x, the external HDMI screen
was not usable anymore: the resolution was something like 480p, with a
very strong blue taint.

   * What exactly did you do (or not do) that was effective (or

I restared with the 5.9 kernel from grub and the same situation was still present.

This not-usable-external-screen is already present when typing the LUKS
password; I think this issue is not related to a configuration file
stored on the root filesystem, but somewhere in the /boot partition
(kernel or raminitfs).

I tried to reinstall completely the system in different ways.
First, without formatting the /boot partition, but only making a
reinstallation of the system.
The problem was still present.

Then, reinstalling completely the system (debian 10) with a full /boot partition
format, the problem disappears.
An update to Debian 11 makes the issue come back.

   * The current working situation

At the moment, the only solution is to install Debian 10, apt-mark hold
the kernel to the version 4.19, switch the apt source file to bullseye,
and make the installation.


-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-14-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-amd64 depends on:
hi  linux-image-4.19.0-14-amd64  4.19.171-2

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

-- no debconf information

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#69417 — Bug#981639: more informations

FromMarco De Donno <mdedonno1337@gmail.com>
Date2021-02-02 17:00 +0100
SubjectBug#981639: more informations
Message-ID<BE6fT-5xD-1@gated-at.bofh.it>
In reply to#69416

[Multipart message — attachments visible in raw view] — view raw

After some investigations, it seems that the kernel does not support
anymore the hdmi adapter (satechi usb c).

I propose to lower the lebel for this bug report.

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#69418 — Processed: Re: Bug#981639: linux-image-amd64: external hdmi screen not usable - blue taint and low resolution

From"Debian Bug Tracking System" <owner@bugs.debian.org>
Date2021-02-02 19:10 +0100
SubjectProcessed: Re: Bug#981639: linux-image-amd64: external hdmi screen not usable - blue taint and low resolution
Message-ID<BE8hI-6YC-11@gated-at.bofh.it>
In reply to#69416
Processing control commands:

> severity -1 normal
Bug #981639 [linux-image-amd64] linux-image-amd64: external hdmi screen not usable - blue taint and low resolution
Severity set to 'normal' from 'critical'
> reassign -1 src:linux 5.10.9-1
Bug #981639 [linux-image-amd64] linux-image-amd64: external hdmi screen not usable - blue taint and low resolution
Bug reassigned from package 'linux-image-amd64' to 'src:linux'.
No longer marked as found in versions linux-latest/105+deb10u9.
Ignoring request to alter fixed versions of bug #981639 to the same values previously set
Bug #981639 [src:linux] linux-image-amd64: external hdmi screen not usable - blue taint and low resolution
Marked as found in versions linux/5.10.9-1.

-- 
981639: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981639
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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