Kwin_wayland Bleeds RAM with External Monitor on laptop

[nepti]

@wh1t3_r4v3n

To my understanding most of the high end laptops are muxed.

That’s right, all fairly current models, even mid-end ones, are muxed. That’s so normal these days that most manufacturers don’t mention it anymore. Little bit more info:

@nepti

The nvidia dGPU uses the iGPU graphics subsystem on optimus laptops for HDMI output. Only on advanced optimus laptops is the output routed directly to the HDMI port when switching to the dGPU.

Your ASUS TUF Gaming A15 FA506QR is definitely an optimus laptop, and Asus is known for being able to activate/deactivate the dGPU/iGPU in the BIOS. No idea why it doesn’t work for you.

@wh1t3_r4v3n

What happened on each step:

1. There is no option for me to disable the neither of the graphics cards in the BIOS menu, but i did all the other things in this point. The laptop was running normally for 3-4 hours when I decided to plug in the external monitor (HDMI → HDMI directly to the laptop). It was operating normally until the same thing happened the ram was still eaten away by kwin_wayland. Tested the same way with the dock with the same results.
2. No problem when running the both nvidia proprietary drivers and the nouveau open source ones withouth the external monitor. When I connect the external monitor no matter through the dock or not the RAM eating repeats itself.
3. Same issue persists.
4. Not possible to disable neither of the GPUs in the BIOS.

It’s stupid, of course, because you can’t narrow it down to the lowest level.

So it always happens no matter which drivers are installed and no matter which GPU is actively used, do I understand that correctly?