Bug 499372 - kclockd wakes up the dGPU and keeps it on after sounding a timer alert
Summary: kclockd wakes up the dGPU and keeps it on after sounding a timer alert
Status: REPORTED
Alias: None
Product: KClock
Classification: Applications
Component: General (show other bugs)
Version: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Devin Lin
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-02-01 00:10 UTC by Valeri
Modified: 2025-02-01 00:10 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Add an attachment

Note You need to log in before you can comment on or make changes to this bug.
Description Valeri 2025-02-01 00:10:51 UTC 
SUMMARY
On an AMD iGPU + Nvidia dGPU setup when a timer goes off dGPU wakes up and won't power off until kclockd is killed.

STEPS TO REPRODUCE
1. Set a timer
2. Wait for it to go off
3. Dismiss the alarm

OBSERVED RESULT
The dGPU wakes up and does not go back to powered down state; manually stopping kclockd fixes the issue.

EXPECTED RESULT
The dGPU remains powered down the entire time

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1

ADDITIONAL INFORMATION
I've suspected this may be somehow related to libva-nvidia-driver, but the issue persists after removing the packet in question.