[BUG] Something not quite right with the latest webtop:ubuntu-kde build

[avoiceofreason]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Inconsistent display errors after building a fresh webtop:ubuntu-kde container

access container using various browsers with https://localhost:8810

Sometimes a black screen
Sometimes a black screen with kde logos
Sometimes an incorrectly scaled screen but no input via mouse/keyboard

The container is running and sudo apt update; sudo apt upgrade will run but makes no difference

docker restart webtop doesn't help

Pretty sure its a GPU kinda issue, but can't test easily as results are so inconsistant.

However older build: webtop:ubuntu-kde-108decbb-ls34 works fine. So something has regressed more recent builds

Expected Behavior

Webtop to start correctly and gui available via browser

Steps To Reproduce

kill existing container

docker pull ghcr.io/linuxserver/webtop:ubuntu-kde ;
docker stop webtop ;
docker rm webtop

rm config folder

sudo rm -R /var/lib/docker/volume_maps/webtop/config

#create new container
docker run -d
--name=webtop
--gpus=all
--runtime nvidia
--security-opt seccomp=unconfined #optional
-e CUSTOM_USER="user"
-e PASSWORD="password"
-e PUID=1001
-e PGID=1001
-e TZ=Europe/London
-e TITLE=Webtop
-e DISABLE_IPV6=true
-e LC_ALL=en_GB.UTF-8
-p 8809:3000
-p 8810:3001
-v /var/lib/docker/volume_maps/webtop/config:/config
-v /etc/timezone:/etc/timezone:ro
-v /etc/localtime:/etc/localtime:ro
--shm-size="3gb"
--device /dev/dri:/dev/dri
--restart unless-stopped
ghcr.io/linuxserver/webtop:ubuntu-kde

Environment

- OS:
- How docker service was installed:

CPU architecture

x86-64

Docker creation

docker run -d \
  --name=webtop \
  --gpus=all \
  --runtime nvidia \
  --security-opt seccomp=unconfined `#optional` \
  -e CUSTOM_USER="user" \
  -e PASSWORD="password" \
  -e PUID=1001 \
  -e PGID=1001 \
  -e TZ=Europe/London \
  -e TITLE=Webtop \
  -e DISABLE_IPV6=true \
  -e LC_ALL=en_GB.UTF-8 \
  -p 8809:3000 \
  -p 8810:3001 \
  -v /var/lib/docker/volume_maps/webtop/config:/config \
  -v /etc/timezone:/etc/timezone:ro \
  -v /etc/localtime:/etc/localtime:ro \
  --shm-size="3gb" \
  --device /dev/dri:/dev/dri \
  --restart unless-stopped \
  ghcr.io/linuxserver/webtop:ubuntu-kde

Container logs

Nothing unusual here

[thelamer]

Disable compositing, the latest images added Zink compatibility for Nvidia which will leverage Vulkan for OpenGL, but it is not compatible with display compositing.

[avoiceofreason]

Any idea how to do that from docker exec cli on host? (as i have no usable web gui for webtop)

The standard >>docker exec webtop bash -c "qdbus org.kde.KWin /Compositor suspend" doesn't work

just get >>Service 'org.kde.KWin' does not exist

Thanks

[avoiceofreason]

OK, so worked out that alt-shift-F12 toggles compositor on/off ....

....but that doesn't help either. I'm pretty sure the compositor is not enabled at startup anyway.

Something is borked on this version of ubuntu-kde, even restarting the container gives me different gui states, none of which actually work

[LinuxServer-CI]

This issue has been automatically marked as stale because it has not had recent activity. This might be due to missing feedback from OP. It will be closed if no further activity occurs. Thank you for your contributions.

[thelamer]

Keeping open, Noble is far more buggy than Bookworm currently for KDE.

In general my only recommendation at this time is use debian-kde if you are able to. I do not know why Kwin is so flaky but they are only minor version bumps between noble and bookworm.

[Fireant456]

Any news on this getting fixed anytime soon?

[avoiceofreason]

If you need a working ubuntu-kde webtop then use the release tag below. It reports as Ubuntu 24.04 (Noble), but works ok for me. I'm not convinced this a "Noble" issue. Webtop seemed to break soon after this release and i've also had iffy Debian webtop experiences. Seems more to do with the VNC implementation and/or related to the GPU in a docker container feature.

webtop:ubuntu-kde-108decbb-ls34