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Ticket Resolution Summary Owner Reporter
#1733 needinfo Bad word-choice in error messages: FAILURE Boruch Boruch
Description

The STDERR messages seem to be more alarmist than necessary, and give me a false feeling that xpra itself may have failed, or that some critical feature has failed, when such does not seem to be the case. The following sample paste of an xpra STDERR illustrates with two examples:

1511 $2018-01-03 00:02:08,828 server failure: disconnected before the session could be established
2018-01-03 00:02:08,830 server requested disconnect: server error (error accepting new connection)
2018-01-03 00:02:08,846 server failure: disconnected before the session could be established
2018-01-03 00:02:08,847 server requested disconnect: server error (error accepting new connection)
Warning: cannot use the system proxy for 'start' subcommand,
 FAILURE

1] The initial messages indicate that the server experienced a failure, but the server seems fine.

2] The final message issues a warning, followed by a cryptic (and alarming) "FAILURE".

This choice of words does xpra a dis-service, in that it makes me (and probably other users) unsure and uncomfortable with the product's stability and functionality.

My suggestion is to reserve the word 'failure' for situations that render the software unusable. Maybe otherwise use the word "error". Alternatively, a term such as "non-critical failure" might be appropriate.

#1734 needinfo server fails when starting via proxy with no stderr error Antoine Martin Antoine Martin
Description

Reported on IRC with Fedora 26:

Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/xpra/scripts/main.py", line 175, in main
    return run_mode(script_file, err, options, args, mode, defaults)
  File "/usr/lib64/python2.7/site-packages/xpra/scripts/main.py", line 1494, in run_mode
    return run_server(error_cb, options, mode, script_file, args, current_display)
  File "/usr/lib64/python2.7/site-packages/xpra/scripts/server.py", line 583, in run_server
    + ("  %s\n" % log_filename0))
IOError: [Errno 32] Broken pipe

I don't understand:

  • why it can't write to stderr at that point
  • why I'm not able to reproduce it
#1757 needinfo Can not open socket with Active Directory user lofy lofy
Description

Hello, I am planning to deploy Xpra over 50-80 computers (Lubuntu 16.04) in order to be able to connect to a remote Firefox installed on a Lubuntu 16.04 "server". The user will be able to connect on his Lubuntu computer with his Active Directory account (connected via SSSD) and launch a Xpra session on the server also with his Active Directory account (server is also connected to the Active Directory via SSSD).

Unfortunately, it seems that Xpra is not able give a screen number. But, I can open ssh Xpra remote connection with a normal (non-active directory user) on the server. Also, I can connect through SSH on the server, create a session and back on the computer attach it.

In the following examples, I will be connected on the computer (Lubuntu 16.04 @IP 192.168.49.26) with the domain user "bateau", and I will try to open a Xpra session on the server (Lubuntu 16.04 @IP 192.168.49.25) with the same domain user "bateau" or with a server local user "test_local". On both the server and client, Xpra has been installed through the Xpra repository and are on version 2.2.3 revision 18043.

First test : Client Lubuntu 16.04 with domain user "bateau" connecting to Xpra server with domain user -> NOK

bateau@VM-VB-Ubuntu:~$ xpra start ssh:bateau@192.168.49.25 --start-child=firefox
2018-01-30 11:27:38,965 Xpra gtk2 client version 2.2.3-r18043 64-bit
2018-01-30 11:27:38,965  running on Linux Ubuntu 16.04 xenial
2018-01-30 11:27:40,091 GStreamer version 1.8.3 for Python 2.7.12 64-bit
2018-01-30 11:27:40,412 No OpenGL_accelerate module loaded: No module named OpenGL_accelerate
2018-01-30 11:27:40,422 Unable to load registered array format handler numeric:
2018-01-30 11:27:40,575 Error: gtkgl rendering failed its sanity checks:
2018-01-30 11:27:40,576  PyOpenGL version 3.0.2 is too old and buggy
2018-01-30 11:27:40,622 OpenGL support is missing:
2018-01-30 11:27:40,623  No module named _types
2018-01-30 11:27:40,658  keyboard settings: rules=evdev, model=pc105, layout=fr
2018-01-30 11:27:40,661  desktop size is 1920x975 with 1 screen:
2018-01-30 11:27:40,662   :1.0 (508x257 mm - DPI: 96x96) workarea: 1920x951
2018-01-30 11:27:40,663     monitor 1 (508x258 mm - DPI: 96x95)
bateau@192.168.49.25's password: 
Error: displayfd failed
 did not provide a display number using displayfd
xpra initialization error:
 failed to identify the new server display!
2018-01-30 11:28:12,543 Error: failed to receive anything, not an xpra server?
2018-01-30 11:28:12,544   could also be the wrong protocol, username, password or port
2018-01-30 11:28:12,544 Connection lost
bateau@VM-VB-Ubuntu:~$

Second test : Client Lubuntu 16.04 with domain user "bateau" connecting to Xpra server with local user -> OK

bateau@VM-VB-Ubuntu:~$ xpra start ssh:test_local@192.168.49.25 --start-child=firefox
2018-01-30 11:30:22,426 Xpra gtk2 client version 2.2.3-r18043 64-bit
2018-01-30 11:30:22,426  running on Linux Ubuntu 16.04 xenial
2018-01-30 11:30:23,490 GStreamer version 1.8.3 for Python 2.7.12 64-bit
2018-01-30 11:30:23,808 No OpenGL_accelerate module loaded: No module named OpenGL_accelerate
2018-01-30 11:30:23,818 Unable to load registered array format handler numeric:
2018-01-30 11:30:23,973 Error: gtkgl rendering failed its sanity checks:
2018-01-30 11:30:23,974  PyOpenGL version 3.0.2 is too old and buggy
2018-01-30 11:30:24,028 OpenGL support is missing:
2018-01-30 11:30:24,029  No module named _types
2018-01-30 11:30:24,076  keyboard settings: rules=evdev, model=pc105, layout=fr
2018-01-30 11:30:24,080  desktop size is 1920x975 with 1 screen:
2018-01-30 11:30:24,080   :1.0 (508x257 mm - DPI: 96x96) workarea: 1920x951
2018-01-30 11:30:24,080     monitor 1 (508x258 mm - DPI: 96x95)
test_local@192.168.49.25's password: 
seamless session now available on display :14
2018-01-30 11:30:34,005 Xpra X11 server version 2.2.3-r18043 64-bit
2018-01-30 11:30:34,005  running on Linux Ubuntu 16.04 xenial
2018-01-30 11:30:34,006 enabled remote logging
2018-01-30 11:30:34,067 server does not support xi input devices
2018-01-30 11:30:34,068  server uses: xtest
2018-01-30 11:30:35,368 sound output using pulseaudio device:
2018-01-30 11:30:35,368 sound output  'Built-in Audio Analog Stereo'
2018-01-30 11:30:36,419 sound output using audio codec opus
2018-01-30 11:30:36,419 sound output using container format ogg
^C
got signal SIGINT, exiting
2018-01-30 11:30:44,902 sound output stopping

Third test : Client Lubuntu 16.04 with domain user "bateau" connecting via SSH with domain user on the Xpra server, opening a Xpra connection and attach it to the client -> OK

bateau@VM-VB-Ubuntu:~$ ssh bateau@192.168.49.25
bateau@192.168.49.25's password: 
bateau@SV-Infra-RemoteApp:~$ xpra start :100
bateau@SV-Infra-RemoteApp:~$ DISPLAY=:100 firefox

bateau@VM-VB-Ubuntu:~$ xpra attach ssh:192.168.49.25:100
2018-01-30 11:41:14,011 Xpra gtk2 client version 2.2.3-r18043 64-bit
2018-01-30 11:41:14,011  running on Linux Ubuntu 16.04 xenial
2018-01-30 11:41:15,131 GStreamer version 1.8.3 for Python 2.7.12 64-bit
2018-01-30 11:41:15,454 No OpenGL_accelerate module loaded: No module named OpenGL_accelerate
2018-01-30 11:41:15,464 Unable to load registered array format handler numeric:
2018-01-30 11:41:15,623 Error: gtkgl rendering failed its sanity checks:
2018-01-30 11:41:15,623  PyOpenGL version 3.0.2 is too old and buggy
2018-01-30 11:41:15,672 OpenGL support is missing:
2018-01-30 11:41:15,672  No module named _types
2018-01-30 11:41:15,710  keyboard settings: rules=evdev, model=pc105, layout=fr
2018-01-30 11:41:15,714  desktop size is 1920x975 with 1 screen:
2018-01-30 11:41:15,714   :1.0 (508x257 mm - DPI: 96x96) workarea: 1920x951
2018-01-30 11:41:15,715     monitor 1 (508x258 mm - DPI: 96x95)
bateau@192.168.49.25's password: 
2018-01-30 11:41:20,475 Xpra X11 server version 2.2.3-r18043 64-bit
2018-01-30 11:41:20,475  running on Linux Ubuntu 16.04 xenial
2018-01-30 11:41:20,476 enabled remote logging
2018-01-30 11:41:20,485 Attached to 192.168.49.25 via ssh
2018-01-30 11:41:20,488  (press Control-C to detach)

2018-01-30 11:41:20,497 server does not support xi input devices
2018-01-30 11:41:20,498  server uses: xtest
2018-01-30 11:41:21,699 sound output using pulseaudio device:
2018-01-30 11:41:21,700 sound output  'Built-in Audio Analog Stereo'
2018-01-30 11:41:22,726 sound output using audio codec opus
2018-01-30 11:41:22,727 sound output using container format ogg
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