Bug 220023

Summary: hibernate regression in 6.14 (absent in 6.13): laptop fails to suspend to disk
Product: ACPI Reporter: Previns (previns79)
Component: Power-Sleep-WakeAssignee: acpi_power-sleep-wake
Status: RESOLVED ANSWERED    
Severity: normal    
Priority: P3    
Hardware: AMD   
OS: Linux   
Kernel Version: Subsystem:
Regression: No Bisected commit-id:

Description Previns 2025-04-17 06:30:52 UTC 
HP PROBOOK 445 G8 (AMD 5800U)

On 6.14 suspend to disk is non functional.
Displays turn off and power button LED remains on. Unresponsive.
Kernel log contains one line about entering suspension as normal.

At the time of attempted suspension multiple peripherals attached:
USBC-hub w/ power & display connected
USB keyboard, mouse, hub w/ multiple unmounted storage drives.
HDMI display

role of peripherals if any: unknown.

Bug encountered thrice in succession before rollback to 6.12.

suspension method:
printf platform > /sys/power/disk
printf disk > /sys/power/state


While suspension on previous kernels always worked it was not clean:
Displays would turn on briefly in a frozen state before final shutdown.

After resume there is a high chance of amdgpu misbehavior:
dmesg repeating spam: (no indications of any other side-effects, possibly harmless)
This issue was reported by someone else and not acted upon: https://gitlab.freedesktop.org/drm/amd/-/issues/2347

[472312.866079] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472312.871770] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472312.877469] amdgpu 0000:05:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[472312.883197] amdgpu 0000:05:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[472312.888913] amdgpu 0000:05:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[472319.404412] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472319.410171] amdgpu 0000:05:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[472319.427999] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472319.434021] amdgpu 0000:05:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[472319.444767] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472319.450837] amdgpu 0000:05:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[472319.647734] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472319.653421] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[472319.659203] amdgpu 0000:05:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
Comment 1 Artem S. Tashkinov 2025-04-17 10:00:13 UTC 
admgpu related bug reports belong to https://gitlab.freedesktop.org/drm/amd/-/issues

That bug report related to kernel 6.1.

Please file a new one.

And please perform regression testing:

https://docs.kernel.org/admin-guide/bug-bisect.html