[i915] Screen distorted when connecting via USB-C - HDMI adapter

[Paweł Banasik]

I'm using the internal laptop screen and 2 external monitors - the problem appears only with the one connected via an USB-C to HDMI adapter.
- The setup works flawlessly on Windows (using the same resolution and refresh rate)
- I've managed to get it working on Ubuntu only once by randomly switching (using Gnome settings & xrandr) screen resolutions, refresh rates, "Broadcast RGB"=Full setting - I cannot reproduce the exact sequence, it got broken again after a restart

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.19.0-26.27-generic 5.19.7
Uname: Linux 5.19.0-26-generic x86_64
ApportVersion: 2.23.1-0ubuntu3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Dec 4 18:09:40 2022
DistUpgraded: 2022-10-23 18:19:23,869 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: kinetic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company UHD Graphics 620 [103c:83b2]
InstallationDate: Installed on 2018-07-27 (1590 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: HP HP EliteBook 840 G5
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-26-generic root=UUID=c71c418c-5835-47e6-8b6e-ba75f32dc748 ro quiet splash resume=UUID=c31b8087-a480-47e0-b155-8fe5934eae37 vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to kinetic on 2022-10-23 (42 days ago)
dmi.bios.date: 09/15/2022
dmi.bios.release: 22.0
dmi.bios.vendor: HP
dmi.bios.version: Q78 Ver. 01.22.00
dmi.board.name: 83B2
dmi.board.vendor: HP
dmi.board.version: KBC Version 04.6D.00
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 4.109
dmi.modalias: dmi:bvnHP:bvrQ78Ver.01.22.00:bd09/15/2022:br22.0:efr4.109:svnHP:pnHPEliteBook840G5:pvr:rvnHP:rn83B2:rvrKBCVersion04.6D.00:cvnHP:ct10:cvr:sku4RU25EC#AKD:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 840 G5
dmi.product.sku: 4RU25EC#AKD
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.113-2
version.libgl1-mesa-dri: libgl1-mesa-dri 22.2.1-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 22.2.1-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Paweł Banasik (pjbanasik)]

Photo of the screen attached

[Daniel van Vugt (vanvugt)]

Thanks for the bug report. In the most recent log (XorgLog.txt) it shows you're using the old broken 'intel' Xorg driver (bug 1867668). So please start by uninstalling package 'xserver-xorg-video-intel' to make sure that isn't the problem.

Please also select Wayland (usually labelled as "Ubuntu") on the login screen. Not "Ubuntu on Xorg".

[Paweł Banasik (pjbanasik)]

Thanks for the answer. I've uninstalled 'xserver-xorg-video-intel' and selected Wayland - no changes. The screen is distorted even when the login screen is displayed (light gray vertical stripes instead of black screen).

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.