This issue also exists on Ubuntu 26.04.1 with Intel CPU + AMD GPU.
Note: the inxi output below I have reverted to the older 7.0.0-27 kernel
to avoid the issue.
System:
Kernel: 7.0.0-27-generic arch: x86_64 bits: 64 compiler: gcc v: 15.2.0
clocksource: tsc
Desktop: KDE Plasma v: 6.6.6 tk: Qt v: N/A wm: kwin_wayland with: krunner
vt: 1 dm: SDDM Distro: Kubuntu 26.04.1 LTS (Resolute Raccoon) base: Ubuntu
Machine:
Type: Desktop System: Gigabyte product: H61N-USB3 v: N/A
serial: <superuser required> Chassis: type: 3 serial: <superuser required>
Mobo: Gigabyte model: H61N-USB3 v: x.x serial: <superuser required>
uuid: <superuser required> Firmware: BIOS vendor: Award v: F8
date: 05/15/2012
CPU:
Info: quad core model: Intel Core i7-3770K bits: 64 type: MT MCP
smt: enabled arch: Ivy Bridge rev: 9 cache: L1: 256 KiB L2: 1024 KiB
L3: 8 MiB
Speed (MHz): avg: 1596 min/max: 1600/3900 cores: 1: 1596 2: 1596 3: 1596
4: 1596 5: 1596 6: 1596 7: 1596 8: 1596 bogomips: 55875
Flags-basic: avx ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Ellesmere [Radeon RX
470/480/570/570X/580/580X/590] vendor: Gigabyte driver: amdgpu v: kernel
arch: GCN-4 pcie: speed: 8 GT/s lanes: 16 ports: active: DP-1,DP-2
empty: DP-3,DVI-D-1,HDMI-A-1 bus-ID: 01:00.0 chip-ID: 1002:67df
class-ID: 0300 temp: 50.0 C
Display: wayland server: X.org v: 1.21.1.22 with: Xwayland v: 24.1.10
compositor: kwin_wayland driver: X: loaded: amdgpu
unloaded: fbdev,modesetting,vesa dri: radeonsi gpu: amdgpu
d-rect: 3200x1080 display-ID: 0
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https://bugs.launchpad.net/bugs/2165664
Title:
Regression: System hangs on shutdown/reboot on kernel 7.0.0-30-generic
after active workload (persists across 7.0.0-28, -29, -30)
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