This looks similar to https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-465/+bug/1930733
Do you use DisplayPort? If yes can you try with HDMI? For me it only happens with DisplayPort
This looks similar to https:/ /bugs.launchpad .net/ubuntu/ +source/ nvidia- graphics- drivers- 465/+bug/ 1930733
Do you use DisplayPort? If yes can you try with HDMI? For me it only happens with DisplayPort