Same issue on Ubuntu Mate 20.04 with Radeon RX 5600 XT with stock driver and also with driver version 20.30 (from AMD). Affected : - single DP>VGA monitor - single HDMI>HDMI TV - dual screens DP>VGA monitor with HDMI>HDMI TV
Another workaround : no issue if set to marco with GPU compositor compton: `marco-compton` If upgraded from 18.04 to 20.04 compton is still installed. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libxcb in Ubuntu. https://bugs.launchpad.net/bugs/1873895 Title: Regression: block staircase display with side-by-side monitors of different pixel widths To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1873895/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
