GPU has a very high load if the monitor is turned off by KDE

[Qu Wenruo]

Hi,

Recently I upgraded my Arch with the following package updates:

- Plasma (6.6.0-1 -> 6.6.1-1)
- Kernel (6.18.6 -> 6.18.9)

Both are minor updates thus I thought it should be mostly smooth sailing.

But after the update, after the monitor is turned off after a timeout 
(10min in my case), the fan of my GPU ramp up.
This also happens when my system is put into suspension.

Unfortunately the behavior is not 100% reproducible, but still 
frequently enough to notice the noisy fan running.


The involved platform is:

CPU: AMD Ryzen AI 9 HX 370 w/ Radeon 890M
iGPU: Radeon 890M
eGPU: RX 7600M XT
       OcuLink eGPU from Aoostar

All monitors are connected to that eGPU.

Any clue on what to test next? Is it something related to KDE or the kernel?

Thanks,
Qu