Sorry my mistake. The minimum value of "max bpc" for your HDMI-2 is 8, as mentioned in the attachment in comment #4. Please use that in a Xorg session and tell us if that solves the problem at 1920x1080:
xrandr --output HDMI-2 --set "max bpc" 8 Although you can't change the setting in a Wayland session, you can change it in Xorg and then log out and into a Wayland session and the kernel should remember the same setting. A proper solution is coming in: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2412 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
