Public bug reported:
SUMMARY
-------
On Ubuntu 22.04 with HWE kernel 6.8.0-134-generic, the screen sometimes goes
black and the GNOME Wayland session ends at the GDM login screen. Kernel logs
show the discrete AMD GPU (Radeon RX 9070 XT / Navi 48) hitting amdgpu compute
ring timeouts, then a full MODE1 GPU reset with "VRAM is lost due to GPU
reset!".
This is not a normal logout. It was noticed while skipping tracks in Spotify
and when opening a second Cursor window. Most timeouts name "Process spotify"
in dmesg; Brave appeared once. Cursor was concurrent load, not named in resets.
I am currently booted on 6.8.0-124-generic (GRUB pinned) after triage. The
problem kernel is 6.8.0-134-generic.
REGRESSION
----------
- Bad: 6.8.0-134-generic (first full day after HWE upgrade 2026-07-19 ~22:55)
- Good: 6.8.0-124-generic (no matching ring-timeout / GPU-reset spam in a
control journal window the evening before the upgrade)
HARDWARE / SOFTWARE
-------------------
- Ubuntu 22.04 LTS, GNOME Shell 42.9, Wayland
- 03:00.0 VGA: AMD/ATI Navi 48 [Radeon RX 9070/9070 XT/9070 GRE] [1002:7550]
- 0e:00.0 VGA: AMD/ATI Granite Ridge [Radeon Graphics] [1002:13c0]
- Kernel cmdline includes: amdgpu.dc=1 amdgpu.runpm=0
video=None-1:2560x1440@165e
- linux-firmware: 20220329.git681281e4-0ubuntu3.42
- Mesa: 23.2.1-1ubuntu3.1~22.04.4
- Spotify snap: latest/candidate rev 97
KERNEL EVIDENCE (PCI 0000:03:00.0)
---------------------------------
1) amdgpu: ring comp_*.*.* timeout
2) Process spotify … (thread spotify:cs0)
3) Soft ring reset → "device wedged, but recovered through reset"
4) Hard path: Ring reset failed → GPU reset begin → MODE1 / smu mode1 reset
5) VRAM is lost due to GPU reset!
6) Wayland session dies → black screen → GDM
Also: "MES FW version must be >= 0x82 to enable LR compute workaround" and
"SMU driver if version not matched" at boot / after reset.
This is not the older Type I pattern on this machine (dml21 / order:9 /
flip_done timed out). Those markers were count=0 on the primary incident boot.
Primary archived boot: 2026-07-20 14:34–15:12 on 6.8.0-134, MODE1 ~14:56 and
~14:58. Same day: repeated Spotify-blamed soft resets (~07:18, ~14:17) and
another MODE1 ~14:27.
REPRODUCIBILITY
---------------
Intermittent under normal desktop use on 6.8.0-134 when:
- Skipping songs in Spotify (snap), and/or
- Opening a second Cursor window / project picker
ATTACHMENTS
-----------
- journal-kernel-boot-minus1-134-20260720-1519.txt
- amdgpu-resets-extract-134-20260720-1519.txt
- system-info-20260720-1519.txt
(from ~/freeze-logs/ubuntu-troubleshooting-20260720/)
Please advise on known Navi 48 / MES issues on 6.8.0-134, firmware to test,
or staying on 124 until a fix.
Thank you.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.8.0-134-generic 6.8.0-134.134~22.04.1
ProcVersionSignature: Ubuntu 6.8.0-124.124~22.04.1-generic 6.8.12
Uname: Linux 6.8.0-124-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 20 15:23:01 2026
InstallationDate: Installed on 2026-06-28 (21 days ago)
InstallationMedia:
MachineType: ASUS System Product Name
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-124-generic
root=UUID=31cc97a2-3540-4970-a440-c3b3037bdbe5 ro quiet splash
mem_sleep_default=deep video=None-1:2560x1440@165e amdgpu.dc=1 amdgpu.runpm=0
vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.8.0-124-generic N/A
linux-backports-modules-6.8.0-124-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.42
SourcePackage: linux-hwe-6.8
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/29/2024
dmi.bios.release: 8.16
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0816
dmi.board.asset.tag: Default string
dmi.board.name: ROG STRIX B850-A GAMING WIFI
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0816:bd10/29/2024:br8.16:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXB850-AGAMINGWIFI:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
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-hwe-6.8 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 amdgpu apport-bug graphics jammy regression-update
wayland-session
** Attachment added: "Full kernel journal for the primary 134 boot is available
if needed."
https://bugs.launchpad.net/bugs/2161322/+attachment/5984586/+files/amdgpu-resets-extract-134-20260720-1519.txt
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https://bugs.launchpad.net/bugs/2161322
Title:
Screen goes black and logs you out on kernel 6.8.0-134 when using GPU-
heavy apps (e.g. Spotify or a second Cursor window), amdgpu hangs and
resets the GPU
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