Following recent 'buster' move to 'stable' I got wild psychedelic colors on my XFCE desktop, making it nearly impossible to read anything on-screen.
Normally I'd have display set for 1024x768. I've found I can get normal color on the GUI if I switch to 1600x900. However, even then, if I switch to console (F1-F6) or if the screensaver comes on, on return the psychedelic colors are back. If I log out / log in to the desktop, normal colors return with the 1600x900 setting only. AMD A10-7860K Radeon R7. ASUSTEK A68HM-K motherboard. firmware-linux-free and firmware-linux-nonfree are installed. Is this a bug? Is there a fix? I'd like to get my normal colors and normal resolution back. Thanks in advance for any help.
