Hi, I am on 21.10 with intel driver and latest displaylink from their website. Everything used to work decently until a couple of day ago when I started seeing the external monitor very slow. I was on 21.04 and after an update it has started being slow.
1. It is slower when more things change on the screen, only the mouse works slow a full screen rendering is unusably slow. 2. on the login screen the screen works very well, as I was used to. 3. Audio work fine, rendering is very slow About my pc 1. Linux vin 5.13.0-20-generic #20-Ubuntu SMP Fri Oct 15 14:21:35 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux 2. Driver from display link displaylink-driver-5.4.1-55.174 3. Tried X11 and Wayland from GDM with Gnome I tried to troubleshoot as described here https://wiki.archlinux.org/title/DisplayLink and setting LIBGL_DRI3_DISABLE=true as said here but it does not change Any hint is appreciated! Thank you -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-470 in Ubuntu. https://bugs.launchpad.net/bugs/1875015 Title: Ubuntu 20.04 and Displaylink is extremely slow Status in Nouveau Xorg driver: Unknown Status in OEM Priority Project: New Status in X.Org X server: Unknown Status in nvidia-graphics-drivers-470 package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Fix Released Status in xserver-xorg-video-amdgpu package in Ubuntu: In Progress Status in xserver-xorg-video-nouveau package in Ubuntu: In Progress Status in xorg-server source package in Focal: In Progress Status in xorg-server source package in Hirsute: In Progress Status in xorg-server source package in Impish: Fix Released 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. To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1875015/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
