Display artifacts/corruption on Fedora 39

[Tahaan]

• Are you using the latest driver? Yes
  johan@fedora ~/Downloads> dnf list --installed |grep amd
  amd-gpu-firmware.noarch 20240410-1.fc39 @updates
  amd-ucode-firmware.noarch 20240410-1.fc39 @updates
  teamd.x86_64 1.32-1.fc39 @anaconda
  xorg-x11-drv-amdgpu.x86_64 23.0.0-2.fc39 @anaconda

• Are you using the latest EVDI version? Yes (1.14.4)

• If you are using a DisplayLink device, have you checked 'troubleshooting'
  on DisplayLink's website? Checked.

• Is this issue related to evdi/kernel? I am unable to say for sure.

• Linux distribution and its version
  Fedora 39 (KDE spin)
• Linux kernel version
  6.8.5-201.fc39.x86_64
• Xorg version (if used)
• Desktop environment in use
  johan@fedora ~/evdi (main)> echo $XDG_SESSION_TYPE
  wayland

johan@fedora ~/evdi (main) [1]> dnf list --installed |grep wayland
kf5-kwayland.x86_64 5.115.0-1.fc39 @updates
kwayland-integration.x86_64 5.27.11-1.fc39 @updates
kwin-wayland.x86_64 5.27.11-1.fc39 @updates
libwayland-client.i686 1.22.0-2.fc39 @fedora
libwayland-client.x86_64 1.22.0-2.fc39 @anaconda
libwayland-cursor.i686 1.22.0-2.fc39 @fedora
libwayland-cursor.x86_64 1.22.0-2.fc39 @anaconda
libwayland-egl.i686 1.22.0-2.fc39 @fedora
libwayland-egl.x86_64 1.22.0-2.fc39 @anaconda
libwayland-server.i686 1.22.0-2.fc39 @fedora
libwayland-server.x86_64 1.22.0-2.fc39 @anaconda
plasma-workspace-wayland.x86_64 5.27.11-1.fc39 @updates
qt5-qtwayland.x86_64 5.15.12-2.fc39 @updates
qt6-qtwayland.x86_64 6.6.2-1.fc39 @updates
sddm-wayland-plasma.noarch 5.27.11-1.fc39 @updates
wayland-utils.x86_64 1.2.0-2.fc39 @anaconda
xisxwayland.x86_64 2-3.fc39 @anaconda
xorg-x11-server-Xwayland.x86_64 23.2.4-1.fc39 @updates
xwaylandvideobridge.x86_64 0.4.0-1.fc39 @updates

[Tahaan]

I included more information in the original report that seems to be missing from the post now.

The way the issue presents itself is it seems like updates to the DisplayLink connected monitor is slow. There is a lot of "lines" or display corruption on parts ot the screen that is getting repainted. Part of why I think it is performance related is because the problem is worse when a bigger part of the screen is repainted.

A Video is work a thousand words many times over, so here is an older video of the same problem (The video was recorded at a time when I had 1.14.1-2 installed via the RPMs published.

https://youtu.be/uZeN9UesBUY

[firewallzer0]

I am having the exact same issue with my displaylink monitors. Fedora 40, KDE, EVDI v1.14.4, Kernel 6.8.10-300.fc40.x86_64, wayland, NVIDIA GPU, I have looked through the troubleshooting section of displaylink's website. If I use an older displaylink chip, I have no issues. I am currently using the DL-6950 Chipset for dual HDMI monitors. The setup works with no issues under Windows 11 so there is no hardware issue.

echo $XDG_SESSION_TYPE
wayland

sudo dnf list --installed |grep wayland
egl-wayland.x86_64                                   1.1.13-3.fc40                                    @fedora                         
gnome-session-wayland-session.x86_64                 46.0-1.fc40                                      @anaconda                       
kf5-kwayland.x86_64                                  5.115.0-2.fc40                                   @fedora                         
kwayland.x86_64                                      6.0.5-1.fc40                                     @updates                        
kwayland-integration.x86_64                          6.0.5-1.fc40                                     @updates                        
kwin-wayland.x86_64                                  6.0.5-1.fc40                                     @updates                        
libwayland-client.i686                               1.22.0-3.fc40                                    @fedora                         
libwayland-client.x86_64                             1.22.0-3.fc40                                    @anaconda                       
libwayland-cursor.i686                               1.22.0-3.fc40                                    @fedora                         
libwayland-cursor.x86_64                             1.22.0-3.fc40                                    @anaconda                       
libwayland-egl.i686                                  1.22.0-3.fc40                                    @fedora                         
libwayland-egl.x86_64                                1.22.0-3.fc40                                    @anaconda                       
libwayland-server.i686                               1.22.0-3.fc40                                    @fedora                         
libwayland-server.x86_64                             1.22.0-3.fc40                                    @anaconda                       
plasma-workspace-wayland.x86_64                      6.0.5-1.fc40                                     @updates                        
qt5-qtwayland.x86_64                                 5.15.13-1.fc40                                   @anaconda                       
qt6-qtwayland.x86_64                                 6.7.0-1.fc40                                     @updates                        
sddm-wayland-plasma.noarch                           6.0.5-1.fc40                                     @updates                        
wayland-utils.x86_64                                 1.2.0-4.fc40                                     @fedora                         
xisxwayland.x86_64                                   2-4.fc40                                         @anaconda                       
xorg-x11-server-Xwayland.x86_64                      23.2.6-1.fc40                                    @updates                        
xwaylandvideobridge.x86_64                           0.4.0-5.fc40                                     @updates

sudo dnf list --installed | grep nvidia
akmod-nvidia.x86_64                                  3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
kmod-nvidia-6.8.10-300.fc40.x86_64.x86_64            3:550.78-1.fc40                                  @@commandline                   
kmod-nvidia-6.8.9-300.fc40.x86_64.x86_64             3:550.78-1.fc40                                  @@commandline                   
nvidia-gpu-firmware.noarch                           20240513-1.fc40                                  @updates                        
nvidia-modprobe.x86_64                               3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
nvidia-persistenced.x86_64                           3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
nvidia-settings.x86_64                               3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia.x86_64                           3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-cuda.x86_64                      3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-cuda-libs.i686                   3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-cuda-libs.x86_64                 3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-kmodsrc.x86_64                   3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-libs.i686                        3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-libs.x86_64                      3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-power.x86_64                     3:550.78-1.fc40                                  @rpmfusion-nonfree-nvidia-driver