Oh man. This turned out to be a hardware issue. A replacement adapter
works fine. I'd never have thought, when the kernel changed so much.
I'm on 5.19 now, didn't see a glitch yet, where I'd normally couldn't
work.
Phew.
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1988989
Title:
HDMI over USB-C unstable since kernel 5.19 on Intel 12th Gen.
Status in linux package in Ubuntu:
Invalid
Bug description:
Having upgraded to 5.19.0-15, my display connected over a USB-C → HDMI
connection goes off and on multiple times a minute, rendering it
unusable.
Downgrading back to 5.15.0-27 makes it work again.
I've bisected mainline kernels from https://kernel.ubuntu.com/~kernel-
ppa/mainline/ to reach:
v5.18.19 GOOD
v5.19-rc3 BAD
ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: linux-image-5.19.0-15-generic 5.19.0-15.15
ProcVersionSignature: Ubuntu 5.19.0-15.15-generic 5.19.0
Uname: Linux 5.19.0-15-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.23.0-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: michal 7948 F.... wireplumber
/dev/snd/controlC0: michal 7948 F.... wireplumber
/dev/snd/seq: michal 7939 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 7 14:28:48 2022
HibernationDevice: RESUME=none
InstallationDate: Installed on 2022-08-31 (6 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220829)
MachineType: Framework Laptop (12th Gen Intel Core)
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=pl_PL.UTF-8
SHELL=/bin/zsh
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_zw6n2j@/vmlinuz-5.19.0-15-generic
root=ZFS=rpool/ROOT/ubuntu_zw6n2j ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.19.0-15-generic N/A
linux-backports-modules-5.19.0-15-generic N/A
linux-firmware 20220831.gitd3c92280-0ubuntu1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/15/2022
dmi.bios.release: 3.4
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 03.04
dmi.board.asset.tag: *
dmi.board.name: FRANMACP04
dmi.board.vendor: Framework
dmi.board.version: A4
dmi.chassis.asset.tag: FRANDACPA42321000N
dmi.chassis.type: 10
dmi.chassis.vendor: Framework
dmi.chassis.version: A4
dmi.modalias:
dmi:bvnINSYDECorp.:bvr03.04:bd07/15/2022:br3.4:svnFramework:pnLaptop(12thGenIntelCore):pvrA4:rvnFramework:rnFRANMACP04:rvrA4:cvnFramework:ct10:cvrA4:skuFRANDACP04:
dmi.product.family: 13in Laptop
dmi.product.name: Laptop (12th Gen Intel Core)
dmi.product.sku: FRANDACP04
dmi.product.version: A4
dmi.sys.vendor: Framework
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