Although I can see from 'kernel-modes.txt' that the problem is originating from the kernel. So the Wayland session is unlikely to help.
** Changed in: xorg-server (Ubuntu) Status: Incomplete => Invalid ** No longer affects: xorg-server (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => New ** Summary changed: - 4k not working + [i915] 4K modes are missing when connected by HDMI -- 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/1893601 Title: [i915] 4K modes are missing when connected by HDMI (but are shown in the EDID) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893601/+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