Public bug reported: For GNOME/Wayland to use hardware cursors on DisplayLink devices (proprietary userspace driver for USB 3 devices), the following Mutter fixes should be included:
Mutter 3.34 branch (tentatively 3.34.5): - https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1116 Initialize cursor support on GPU hotplug (backport to 3.34) Mutter 3.36 (currently master) branch (tentatively 3.36.1): - https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1079 Handle lack of explicit cursor planes better - https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1097 Initialize cursor support on GPU hotplug Without "Initialize cursor support on GPU hotplug" performance on hotplugged DisplayLink devices that create a new DRM device node suffers, because Mutter uses a software cursor which implies that DisplayLink needs to update the whole screen on every cursor motion. Without "Handle lack of explicit cursor planes better" there will not be a cursor at all on DisplayLink devices in Mutter 3.36. I would assume that the 3.34 branch is relevant to Ubuntu 19.10 and the 3.36 branch is relevant to Ubuntu 20.04. ** Affects: mutter (Ubuntu) Importance: Undecided Status: New -- 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/1867757 Title: Please pull Mutter cursor fixes for DisplayLink devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1867757/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
