Note also that if you did have a machine that required: xrandr --output DP-3 --set "max bpc" 8
on a 4K 60Hz display then that may indicate a bandwidth problem. Maybe a limitation of the cable. Does a max bpc of 10 also work? What values don't work? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1890772 Title: Some external 4K monitor is not working properly To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1890772/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

