This describes precisely what happens to my laptop screen. Although it does not happen with my external display (over HDMI).
I have a System76 Pangolin Performance (panp7). Running the open "radeon" driver with a ATI HD4570 (iirc).
This describes precisely what happens to my laptop screen. Although it does not happen with my external display (over HDMI).
I have a System76 Pangolin Performance (panp7). Running the open "radeon" driver with a ATI HD4570 (iirc).