xpra, xpra2 and xvfb not showing window

[kumikooumae]

X server options xpra, xpra2 and xvfb does not pop up a window for me. And I installed xpra on host and add --xc=no, it didn't work either. However I can start the container with printenv, start xpra server on host with env, connect xpra client on host to the server, and see the window.
x11docker.log

[mviereck]

Thank you for the report!
I have fixed the issue and have made a new release 7.4.1 including the fix. There was a bug checking the progress of xinitrc preventing xpra to start.
You can install it with x11docker --update.

For Xvfb it is correct that you don't see a window popping up. It is a virtual X server without visible output. It can be used e.g. for custom setups with xpra or VNC.

[kumikooumae]

Still getting error for --xpra at 7.4.1. --xpra --xc=no and --xpra2 works for me now.

error: list of process IDs must follow -p

Usage:
ps [options]

Try 'ps --help <simple|list|output|threads|misc|all>'
or 'ps --help <s|l|o|t|m|a>'
for additional help text.

For more details see ps(1).
12792 frames in 5.0 seconds = 2558.346 FPS
x11docker note: Option --xpra: xpra terminated unexpectedly.
Last lines of xpra server log: 257217 ? 00:00:00 xpra
x11docker [01:57:56,862]: Starting Xpra server
db3d50840f57626e04047c3469994dd3ac881cd9266ec8582435052837b6e33c

---

Last lines of xpra client log:
x11docker [01:57:57,105]: Starting Xpra client
9c8ed0d8b8b723023ab1983b7ac1834debc9827ef6e3e04225108fe3b8941b36

X connection to :101 broken (explicit kill or server shutdown).
x11docker.log

[mviereck]

Thank you for your thorough testing!
I have fixed this in the master/beta version

The issue was that x11docker wants the xpra client to use Wayland if available, but was not set up correctly (environment variable GDK_BACKEND=wayland was needed). Your desktop provides Wayland and X11/Xwayland, Gnome 3, I assume.

[kumikooumae]

Thanks, it works