Bug 465806

Summary: DisplayPort screen energy saving does not work on Wayland session
Product: [Unmaintained] Powerdevil Reporter: hexagonspawn
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: me, nate, p.r.worrall
Priority: NOR Keywords: regression
Version First Reported In: 5.27.0   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description hexagonspawn 2023-02-16 01:56:42 UTC 
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
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***


STEPS TO REPRODUCE
1. Set energy saving -> screen energy saving -> switch off after 1 min (in my case, on AC power)
2. Leave for over a minute

OBSERVED RESULT
Screen does not sleep on Wayland, but does when running KDE with Xorg. This is a relatively new bug as I did not have this issue a few weeks ago.


EXPECTED RESULT
External/internal screens should sleep.


SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.27
KDE Plasma Version: 5.27.0
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 5.15.0-60-generic (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-4300M CPU @ 2.60GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 4600
Manufacturer: LENOVO
Product Name: 20AWS3HP00
System Version: Thinkpad T440P

ADDITIONAL INFORMATION
My thinkpad is connected to a 241b philips external display over displayport. I would be happy to provide whatever files or info I could.
Comment 1 Paul Worrall 2023-02-16 11:04:59 UTC 

*** This bug has been marked as a duplicate of bug 462695 ***
Comment 2 Nate Graham 2023-02-22 19:02:06 UTC 
A few questions:
1. Can you make sure that powerdevil is running? You can check with `ps -ef | grep powerdevil` in a terminal window.
Comment 3 hexagonspawn 2023-02-22 19:32:41 UTC 
(In reply to Nate Graham from comment #2)
> A few questions:
> 1. Can you make sure that powerdevil is running? You can check with `ps -ef
> | grep powerdevil` in a terminal window.

Yes, it is. Output:

grayson@libre:~/Documents$ ps -ef | grep powerdevil
grayson     1696    1352  0 10:51 ?        00:00:00 /usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdevil