I think this is probably a bug in 'mutter'. Less likely a bug in 'gnome- control-center' or 'xorg-server'.
** Summary changed: - Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9 + HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9 ** No longer affects: linux (Ubuntu) ** Changed in: xorg-server (Ubuntu) Status: Incomplete => New ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Also affects: gnome-control-center (Ubuntu) Importance: Undecided Status: New ** Tags added: multimonitor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1907870/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs