Sorry, I'm usually remote from the office where I have the displaylink
adapter which has this problem, so I was not able to test until I got to
the office instead.

I installed all updates in eoan-proposed and rebooted and then tried
logging into a Wayland session and using the displaylink adapter, and
the behavior hasn't changed: my display and perhaps my whole computer
hangs within a minute or two of starting to use the displaylink adapter.
Changing the display configuration consistently triggers the hang. This
isn't fixed.


** Tags removed: verification-done verification-done-eoan
** Tags added: verification-failed-eoan

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1853357

Title:
  display (whole computer?) hangs when I attempt to use DisplayLink with
  Wayland

Status in mutter package in Ubuntu:
  Fix Released
Status in mutter source package in Eoan:
  Fix Committed

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

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