External screen turns off randomly
Submitted by nic..@..us.org
Assigned to Xorg Project Team
Created attachment 125941 xorg logfile
I've just changed from xf86-video-intel to modesetting, as the intel driver (especially with SNA) is extremly slow.
The modesetting is much faster (2-4 times in rendering windows) especially with bigger screens (2560x1440 + 3840x2160).
However there is one bug with modesetting: the external monitor (3840x2160) turns off / blanks frequently for about 1-2 seconds and then comes back instantly.
This has never happened with xf86-video-intel.
Attached is the Xorg.0.log - let me know if you need more information about my system.
It's btw. very impressive how fast modesetting (or how slow the intel driver) is!
Attachment 125941, "xorg logfile":