[amdgpu][HP Pavilion Plus Laptop 14] Screen artifacts especially when changing workspaces

[Michael Drakes]

Installed fresh, artifacts started after update. Happens when interacting gnome; menus, changing workspaces, etc. Attached screencast

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.5.0-14.14~22.04.1-generic 6.5.3
Uname: Linux 6.5.0-14-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 17 17:55:34 2024
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:15bf] (rev c9) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:8c21]
InstallationDate: Installed on 2024-01-09 (7 days ago)
InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2)
MachineType: HP HP Pavilion Plus Laptop 14-ey0xxx
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_7trxt5@/vmlinuz-6.5.0-14-generic root=ZFS=rpool/ROOT/ubuntu_7trxt5 ro quiet splash vt.handoff=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/10/2023
dmi.bios.release: 15.2
dmi.bios.vendor: Insyde
dmi.bios.version: F.02
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8C21
dmi.board.vendor: HP
dmi.board.version: 87.27
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 87.27
dmi.modalias: dmi:bvnInsyde:bvrF.02:bd08/10/2023:br15.2:efr87.27:svnHP:pnHPPavilionPlusLaptop14-ey0xxx:pvrType1ProductConfigId:rvnHP:rn8C21:rvr87.27:cvnHP:ct10:cvrChassisVersion:sku8Y7M1EA#ABH:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Plus Laptop 14-ey0xxx
dmi.product.sku: 8Y7M1EA#ABH
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.4-0ubuntu1~22.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 23.0.4-0ubuntu1~22.04.1
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
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

[Daniel van Vugt (vanvugt)]

Thanks for the bug report. I've watched the attached screencast a few times and can't see any artifacts in it. This is unsurprising given how screen recording works. You will probably need to take a video of the screen externally, like with a phone.

[Daniel van Vugt (vanvugt)]

Please also try kernel parameter amdgpu.dcdebugmask=0x10 to disable panel self-refresh.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Also confirmed on Noble, same machine.

The workaround in comment #3 seems to work, but so does just changing the refresh rate in Settings to the *other* 120Hz mode. After that the bug doesn't occur no matter how many times I change the refresh rate.

The screen is advertised as "48-120 Hz" in HP's specs, and in Windows it defaults to that dynamic frequency range. I'm not sure if it's VRR or something else.

[Daniel van Vugt (vanvugt)]

Possibly fixed in kernel 6.8-rc5:

https://gitlab.freedesktop.org/drm/amd/-/issues/3202