Bug 509759 - Powerdevil infinite loop and making system extremely laggy
Summary: Powerdevil infinite loop and making system extremely laggy
Status: NEEDSINFO WAITINGFORINFO
Alias: None
Product: plasmashell
Classification: Plasma
Component: Power management & brightness (other bugs)
Version First Reported In: 6.4.4
Platform: Fedora RPMs Linux
: NOR grave
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-09-21 21:07 UTC by lluke8669
Modified: 2025-09-28 16:13 UTC (History)
1 user (show)

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

Attachments
powerdevil log (274.58 KB, text/plain)
2025-09-21 22:44 UTC, lluke8669 		Details
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Description lluke8669 2025-09-21 21:07:10 UTC 
SUMMARY
After an update, randomly when login on either Wayland or x11, after a few seconds, system becomes extremely laggy for a very long moment.

STEPS TO REPRODUCE
1. Login with user.
2. Lag

OBSERVED RESULT
Extreme lag on either graphical or tty terminal.

EXPECTED RESULT
System going smooth

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 42
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2

ADDITIONAL INFORMATION
Comment 1 lluke8669 2025-09-21 22:27:00 UTC 
Masking makes system go smooth again, unmasking makes it lag.
Comment 2 lluke8669 2025-09-21 22:44:43 UTC 
Created attachment 185145 [details]
powerdevil log

this is the log for powerdevil
Comment 3 Nate Graham 2025-09-23 17:26:17 UTC 
What version of ddcutil do you have? If it's not 2.2.1 or later, this is probably Bug 500843.
Comment 4 lluke8669 2025-09-28 16:13:27 UTC 
ddcutil version is 2.2.1