Bug 461695

Summary:	Automatically change the screen refresh rate based on power modes on system settings or when it's connected to AC or battery
Product:	[Plasma] plasmashell	Reporter:	andretiagob
Component:	Power management & brightness	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	wishlist	CC:	liangrui.ch, natalie_clarius, nate
Priority:	NOR
Version First Reported In:	6.2.4
Target Milestone:	1.0
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Suggestion

Description andretiagob 2022-11-11 11:29:37 UTC

SUMMARY

OBSERVED RESULT
This is more a feature request i guess.

When using different power modes the screen refresh rate doesn't change.

EXPECTED RESULT
For example:

If using performance or balanced modes change the screen refresh rate to the maximum 120hz/165Hz.
If using power save mode change the refresh rate to the minimum 60Hz to save power.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 22.10
KDE Plasma Version: 5.26.3
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel: 6.0.0
Wayland

ADDITIONAL INFORMATION
Laptop in question: MSI Summit E16 Flip A12UCT

Comment 1 andretiagob 2022-11-11 12:02:05 UTC

Created attachment 153671 [details]
Suggestion

Comment 2 Nate Graham 2022-11-14 20:41:39 UTC

Makes sense for hardware that supports high refresh rates where you might want the maximum supported refresh rate while plugged in, but to go down to 60hz while on battery to save power.

Comment 3 andretiagob 2023-08-26 10:17:08 UTC

Plasma was updated:

Linux/KDE Plasma: Fedora 38
KDE Plasma Version: 5.27.7
KDE Frameworks Version: 5.109.0
Qt Version: 5.15.10
Kernel: 6.4.11

Comment 4 BryanLiang 2025-06-15 12:31:00 UTC

Any updates on this? I think it's very useful.