Public bug reported:
My laptop's display is usually smooth. And mostly smooth if I fling a
page in Firefox, but as the scroll slows down it stutters heavily.
Disabling PSR (amdgpu.dcdebugmask=0x10) seems to eliminate the problem.
ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: linux-image-6.11.0-8-generic 6.11.0-8.8
ProcVersionSignature: Ubuntu 6.11.0-8.8-generic 6.11.0
Uname: Linux 6.11.0-8-generic x86_64
ApportVersion: 2.30.0-0ubuntu4
Architecture: amd64
CasperMD5CheckResult: pass
Date: Wed Oct 9 22:06:50 2024
InstallationDate: Installed on 2024-10-09 (0 days ago)
InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241008)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: LENOVO 21MCCTO1WW
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-8-generic
root=UUID=d12ece87-0260-40ac-a4d6-27650feceb8e ro amdgpu.dcdebugmask=0x10 quiet
splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.11.0-8-generic N/A
linux-backports-modules-6.11.0-8-generic N/A
linux-firmware 20240913.gita34e7a5f-0ubuntu2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/22/2024
dmi.bios.release: 1.6
dmi.bios.vendor: LENOVO
dmi.bios.version: R2LET25W (1.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21MCCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76463 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.4
dmi.modalias:
dmi:bvnLENOVO:bvrR2LET25W(1.06):bd05/22/2024:br1.6:efr1.4:svnLENOVO:pn21MCCTO1WW:pvrThinkPadT14Gen5:rvnLENOVO:rn21MCCTO1WW:rvrSDK0T76463WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21MC_BU_Think_FM_ThinkPadT14Gen5:
dmi.product.family: ThinkPad T14 Gen 5
dmi.product.name: 21MCCTO1WW
dmi.product.sku: LENOVO_MT_21MC_BU_Think_FM_ThinkPad T14 Gen 5
dmi.product.version: ThinkPad T14 Gen 5
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 amdgpu apport-bug oracular performance psr
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https://bugs.launchpad.net/bugs/2084053
Title:
[amdgpu] Display microstutters (unless PSR is disabled)
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