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Ticket Resolution Summary Owner Reporter
#2644 fixed Question multi-user html5 Antoine Martin peter0914

I have the following use case:

  • Multiple users (clients) shall be able to run a specific program P on a remote server
  • Each user gets its own instance of P (so P is started multiple times on the server)
  • The users connect via web-browser (html5) with their username and password

At the moment I solved it by creating separate linux user accounts and launching multiple instances of xpra-html5 under each of these accounts on different display and tcp (wss) ports. However I wonder if there is a better option, because I have some stability problems with the X-servers and maybe I am using xpra the wrong way.

My questions are:

  1. Is my current solution the preferred one in this situation?
  2. Might the xpra proxy be useful to me?
  3. How could multiple user logins/passwords be handled by a single xpra instance?

PS: Im using the latest ppa version. Also I could not find a proper type for this ticket, please change it to something else.

#2641 fixed xdg-open bugs / improvements stdedos stdedos

Since you already use a non-standard xdg-open implementation, would you consider adding support for multiple arguments?


$ xdg-open xpra-info-0-2617.log xpra-info-2-2617.log
$ echo $?

Showing one file

vs Xenial:

$ xdg-open xpra-info-0-2617.log xpra-info-2-2617.log
xdg-open: unexpected argument 'xpra-info-2-2617.log'
Try 'xdg-open --help' for more information.
$ echo $?


  • Download (for some reason) does Download & Open, and closes the transfers window
  • Add an Open Download Directory
#2640 needinfo xpra shadow crashes inside xpra client with --opengl=no stdedos stdedos

From client: r25603

$ "Xpra-Python3-x86_64_4.0-r25603\xpra_cmd" start ssh://user@ip/2 --ssh="plink -ssh -agent" --modal-windows=no --microphone=off --speaker=off --webcam=no --pulseaudio=no --opengl=no --start-new-commands=yes --start=gnome-terminal

To Xenial server: v3.0.7-r25609

$ xpra shadow ssh://host@host
xpra for python 2.7 is not installed
 retrying with python3
2020-03-13 01:12:35,685 Xpra GTK3 X11 client version 3.0.7-r25609 64-bit
2020-03-13 01:12:35,757  running on Linux Ubuntu 16.04 xenial
2020-03-13 01:12:35,758  window manager is 'Xpra'
2020-03-13 01:12:35,785 Warning: failed to query pulseaudio using 'pactl info'
2020-03-13 01:12:35,785  Connection failure: Connection refused
2020-03-13 01:12:35,786  pa_context_connect() failed: Connection refused
2020-03-13 01:12:35,862 No OpenGL_accelerate module loaded: No module named 'OpenGL_accelerate'

(xpra:7522): Gdk-ERROR **: The program 'xpra' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadValue (integer parameter out of range for operation)'.
  (Details: serial 231 error_code 2 request_code 151 (GLX) minor_code 3)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
Trace/breakpoint trap (core dumped)

To Bionic server v4.0-r25532

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