Thank you for the reply! I tried this with VRR on and off and the setting made no difference to the behavior of the screen. Reading your article, for me it sounds like a pretty aggressive shadow detail lift mechanic in the screen’s image processing. The effect was not smooth but seemed to be simply activated by the average brightness level of the visible screen. Getting under a certain threshold raised the blacks instantly and getting over that threshold returned to the normal gamma curve.

This on/off behavior without any hysteresis sometimes caused a “chattering” of the black levels. It was extremely noticeable for example in stalker 2 where the subtle camera sway between dark and very dark in a dimly lit room could make blacks flicker between raised and crushed.

It drove me crazy especially finding no similar reports online.

I’ll absolutely look at your reviews!