https://bugzilla.kernel.org/show_bug.cgi?id=219632
Bug ID: 219632
Summary: Failure to resume, video and user mode stuck,
Magic-SysRQ works
Product: ACPI
Version: 2.5
Hardware: AMD
OS: Linux
Status: NEW
Severity: high
Priority: P3
Component: Power-Sleep-Wake
Assignee: acpi_power-sleep-w...@kernel-bugs.osdl.org
Reporter: bl...@debian.org
Regression: No
Created attachment 307405
--> https://bugzilla.kernel.org/attachment.cgi?id=307405&action=edit
dmesg-from-journalctl
Hello,
situation here:
- Kernel: 6.12.6 (issue also reproducible with 6.12.3 and also random 6.11.x
versions)
- Mainboard: MSI B550M-PRO-VDH-WIFI, replaced a few months ago
- CPU: AMD Ryzen 5700G
- Video: Radeon RX 6700G
The combo has been working fine with kernels 6.9.x, 6.10.x, including regular
suspend/resume cycles (S3). I noticed first trouble when testing 6.11-rcX
versions. It failed to resume but sometimes only on the second or third suspend
cycle. The obvious symptoms were that system powered up but video never came
back, neither did the onboard NIC, although USB keyboard was still responsive
and I could sync and restart via Magic-SysRQ combos. No journalctl logs were
shown, so I guess that userspace never has been resumed.
I have tried the CONFIG_PM_TRACE / CONFIG_PM_DEBUG method already. No usable
data reported from there, i.e. from dmesg:
Dez 25 16:11:46 zombie kernel: PM: RTC time: 15:11:30, date: 2024-12-25
...
Dez 25 16:11:46 zombie kernel: PM: Magic number: 4:125:185
$ cat /sys/power/pm_trace_dev_match
usb
acpi-wmi
acpi
I wanted to be helpful and have tried the bisecting already. That is leading to
nowhere, I have given up after some hours. Because some builds are not showing
the same behavior, i.e. the repro runs eventually end up in strange behavior
with non-responsive USB keyboard (either not lighted at all or blinking leds on
key strokes but not doing anything). And skipping those bisect steps means that
it keeps jumping between 6.9.x and 6.11.x and 6.10.x branches, and I have no
further ideas on how to continue.
On the other hand, 6.10.14 version is running perfectly right now, but IMHO
that issue smells extremely and I am using regular&popular hardware parts, so
it might affect lots of users with similar setups.
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