Learning more about this as I go: * I'm no longer convinced that I was correct above when I claimed that the version of the evdi kernel module and library shipped with Ubuntu are newer than the version shipped with the installer available on displaylink.com. I might be wrong about that.
* When I use the versions shipped with Ubuntu instead of the displaylink.com installer, on Ubuntu 19.04, then I can only use DisplayLink monitors under Wayland, i.e., they aren't detected under Xorg. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1853357 Title: display (whole computer?) hangs when I attempt to use DisplayLink with Wayland Status in Mutter: New Status in mutter package in Ubuntu: Incomplete Status in mutter source package in Eoan: Confirmed Status in mutter source package in Focal: Incomplete Bug description: [ Impact ] I am using the DisplayLink driver for Ubuntu provided at https://www.displaylink.com/downloads/ubuntu DisplayLink is working under Xorg, but when I try to use it under Wayland my whole display hangs and I can't even switch to a different VT with Ctrl-Alt-F3 so I think maybe the whole computer is hung? Not certain. [ Test case ] - Install DisplayLink drivers - Start GNOME Shell in wayland mode - Connect to a display-link dock - Expect the shell to work properly and be visible in the external device [ Regression potential ] Wayland session won't work even for standard drm devices ---- I am using the DisplayLink driver for Ubuntu provided at https://www.displaylink.com/downloads/ubuntu, which I think is the only way to get DisplayLink fully working under Ubuntu? That is, DisplayLink didn't work when I installed the evdi-dkms and libevdi0 Ubuntu packages, and I couldn't find any other packages that might be relevant (did I miss something?) so as far as I can tell the only way to get everything that's needed is from displaylink.com. I'm reporting this issue while logged in under Xorg because I can't report it when logged in with my DisplayLink monitors plugged in under Wayland, for obvious reasons. :-/ ProblemType: BugDistroRelease: Ubuntu 19.10 Package: mutter 3.34.1-1ubuntu1 ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7 Uname: Linux 5.3.0-23-generic x86_64 ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Nov 20 14:08:21 2019 InstallationDate: Installed on 2019-09-12 (69 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)SourcePackage: mutter UpgradeStatus: Upgraded to eoan on 2019-09-20 (61 days ago) modified.conffile..etc.apport.crashdb.conf: [modified] mtime.conffile..etc.apport.crashdb.conf: 2019-10-23T16:51:18.143596 To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1853357/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp