Bug 490744

Created attachment 171947 [details]
Display settings with with idle power draw. Left without ICC, right with ICC profile

***
If you're not sure this is actually a bug, instead post about it at https://discuss.kde.org

If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***

SUMMARY
When using the color-management feature on external monitors, it seems that this causes the idle power draw to increase substantially, making the entire system run hotter overall. This does not happen when using  the built-in laptop screen only. 

STEPS TO REPRODUCE
1.  Connect external Monitor
2.  Select ICC profile in Display settings

OBSERVED RESULT
Idle power draw triples

EXPECTED RESULT
Power draw stays the same


SOFTWARE/OS VERSIONS
Linux: 6.9.9-1
KDE Plasma Version: 6.1.2  
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION
The Laptop is a Tuxedo InfinityBook Pro 14 gen 8 with Nvidia 3050 GPU. The bug occurs when running in dedicated GPU mode and with integrated graphics.