Bug 514146 - Option to automatically switch to lower screen refresh rate while on battery power
Summary: Option to automatically switch to lower screen refresh rate while on battery ...
Status: CONFIRMED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_powerdevil (other bugs)
Version First Reported In: 6.5.4
Platform: Bazzite Linux
: NOR wishlist
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-01-04 14:55 UTC by Eduardo Correia
Modified: 2026-01-06 17:55 UTC (History)
3 users (show)

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Description Eduardo Correia 2026-01-04 14:55:54 UTC 
SUMMARY
Have an option somewhere in KDE energy settings KCM to switch the screen to 60Hz while on battery, and switch it back up to max when connected to AC. This could maybe be a dropdown inside KDE settings > Power management > have a dropdown for each power state to let us choose which refresh rate to change the screen to when that power state gets active. Maybe its also worth to consider the possibility of multiple screens here (when connected to external secondary displays, energy saving is also useful since this affects how many refreshes the GPU processes for external displays aswell) ?

This would be extremely useful on laptops, since gaming laptops have 240Hz screen (sometimes more) and switching to 60Hz on battery gives an actual HUGE boost in battery life compared to 240Hz or higher, sometimes 1-2 extra hours of battery life depending on the laptop.


SOFTWARE/OS VERSIONS
Linux: 6.17.7 - bazzite KDE
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1