Public bug reported:
After updating from 7.0.0-34 to 7.0.0-38 I see graphical corruption on screen
(horizontal lines, random blocks). It is not periodic, rather random. It only
happens in areas that are changing:
moving windows, switching apps, scrolling or panning in Chrome (Google Maps in
streetview is the
most visible). Static content looks fine. Booting 7.0.0-34 fixes it.
On 7.0.0-38 KWin logs many errors like this:
kwin_wayland_drm: atomic commit failed: Device or resource busy
The kernel also logs:
workqueue: dm_handle_vmin_vmax_update [amdgpu] hogged CPU for
>10000us 5 times, consider switching to WQ_UNBOUND
The errors start already on the SDDM login screen.
Number of "atomic commit failed" errors per boot:
7.0.0-30 0-3
7.0.0-31 0-28 (usually 2-10)
7.0.0-34 1-12 (last test: 1 error in 12 minutes)
7.0.0-38 373, 309, 18 in 4.5 minutes, 13 in 1.5 minutes
There are no GPU resets, ring timeouts or page faults in dmesg. The problem is
not
only in Chrome. It also happens when moving windows in KWin.
Display Core version and DMUB firmware are the same on 7.0.0-34 and 7.0.0-38
(DC 3.2.369, DMUB 0x0A000800).
Workaround: boot 7.0.0-34.
System:
- Kubuntu 26.04.1, Plasma 6.6.6, KWin 6.6.6, Wayland
- AMD Radeon RX 9070 XT (Navi 48, 1002:7550, ASUS 1043:061a), VBIOS
115-G295BP00-100
- DCN 4.0.1
- Mesa 26.0.8-1ubuntu0.3
- linux-firmware 20260319.git217ca6e4
- One monitor, Dell U3425WE, 3440x1440 120 Hz, DisplayPort, VRR off, ICC
profile on
- Kernel command line: quiet splash
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-38-generic 7.0.0-38.38
ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
Uname: Linux 7.0.0-38-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: alesz 3585 F.... wireplumber
/dev/snd/controlC0: alesz 3585 F.... wireplumber
/dev/snd/seq: alesz 3574 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun Oct 11 15:39:54 2026
InstallationDate: Installed on 2026-03-21 (204 days ago)
InstallationMedia: Kubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
MachineType: ASUS System Product Name
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-38-generic
root=UUID=5ae0e12b-8495-4aac-9969-37b5116e6d15 ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to resolute on 2026-05-15 (149 days ago)
dmi.bios.date: 08/29/2024
dmi.bios.release: 5.17
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4902
dmi.board.asset.tag: Default string
dmi.board.name: Pro WS X570-ACE
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4902:bd08/29/2024:br5.17:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnProWSX570-ACE:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:pfaTobefilledbyO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUS
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2170492
Title:
Screen corruption on RX 9070 XT after update to 7.0.0-38, KWin atomic
commits fail with EBUSY
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2170492/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
