Hi Alberto,

well what hardware do you have?

Interlaced resolutions are not used any more on modern hardware, so they 
are not well tested.

Regards,
Christian.

Am 30.03.21 um 10:04 schrieb Alberto Salvia Novella:

The entire desktop hangs after some minutes when using the module 
"radeon" with an interlaced resolution.

Easier to trigger by playing a video on Firefox, at least on kwin_x11. 
Wayland didn't exhibit the problem.

Other display drivers, from different computers I have tried, didn't 
allow those interlaced resolutions all together. It seems they know 
there will be problems.