No browser window (black screen with cursor only) with most builds

[suckerfish]

'latest', 'firefox', 'opera', 'xfce', 'vlc', and 'vncviewer' all seem to work fine.

For nearly everything else, the behavior is the same. Black screen with a cursor only. Notably I'd prefer to use Chrome or Chromium but same problem with both.

Running on Unraid, but have also tried bare metal on Linux Mint, as well as a Lubuntu VM. Same behavior no matter the platform.

Log output for chromium attempt here: https://pastebin.com/qfVRtQUu

Feels like I'm missing something pretty basic here but I've been over documentation a lot and not sure what I'm missing.

[m1k1o]

I just tried it with latest m1k1o/neko:chromium and it works fine.

It looks like this error pthread_create failed: Operation not permitted is permitting any executabe to start in your docker container, browser, openbox and neko as well. Maybe its some bug with your docker runtime? What is your docker version?

I'm on ubuntu 20.04, Docker version 20.10.22, build 3a2c30b.

[suckerfish]

Mint 20 Docker version 20.10.8.

However, here's an attempt on my Unraid box (running 6.11.5, latest) which is running a much newer version of Docker: 20.10.21, build baeda1f.

Not exactly the same errors, but same result. Black screen with cursor and nothing else. I'm running out of systems to try this on.

https://pastebin.com/dKwzLp20

[m1k1o]

This latest error looks like there is no --cap-add=SYS_ADMIN. Firefox works without this capability, that should be working for you in any case.

[suckerfish]

I did some brief searches on --cap-add=SYS_ADMIN but don't fully understand it. Is this something I can add or enable in my environment to support this?

[m1k1o]

Capabilities of container. Normally set up with docker run command, or in docker-compose.yaml file.

[suckerfish]

Capabilities of container. Normally set up with docker run command, or in docker-compose.yaml file.

Well that was easy. That seems to have fixed it. Thank you!