[Bug 1875015] Re: Displaylink is extremely slow in Xorg sessions

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xserver-xorg-video-nouveau (Ubuntu Jammy)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1875015

Title:
  Displaylink is extremely slow in Xorg sessions

Status in Nouveau Xorg driver:
  New
Status in OEM Priority Project:
  New
Status in xf86-video-amd:
  Fix Released
Status in X.Org X server:
  Fix Released
Status in xorg-server package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-amdgpu package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-nouveau package in Ubuntu:
  In Progress
Status in xorg-server source package in Focal:
  Fix Released
Status in xorg-server source package in Hirsute:
  Won't Fix
Status in xorg-server source package in Impish:
  Fix Released
Status in xorg-server source package in Jammy:
  Fix Released
Status in xserver-xorg-video-amdgpu source package in Jammy:
  Confirmed
Status in xserver-xorg-video-nouveau source package in Jammy:
  Confirmed

Bug description:
  Using ubuntu 20.04 on displaylink docking with external monitor is
  totally slow, unusable. The GUI responds very slow, if you click, the
  command of the click goes on after about 3 seconds... if you type, all
  the letters are with the same lag, so it is totally unusable.

  Was using displaylink without any problem on 19.10 until yesterday, when I upgraded to 20.04. 
  It is terrific.

  If i plug out the usb for the displaylink docking station, than the
  speed is back, and the system is ok, if I connect it to the docking
  station again, everything extremely slow again.

  Please investigate this asap, as it is unusable on displaylink docking
  stations.

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