With a clean CentOS 6.3 OS (running a yum localinstall cold) I launched xpra- it lasted nearly 2 seconds before pulseaudio crashed.
dbus-launch xpra --no-daemon --bind-tcp=0.0.0.0:1200 --start-child=xterm start :11
The OS responded with:
Error running "xauth add :11 MIT-MAGIC-COOKIE-1 084bd971af569928976de3134a0d9446": [Errno 2] No such file or directory (EE) AIGLX error: dlopen of /usr/lib64/dri/swrast_dri.so failed (/usr/lib64/dri/swrast_dri.so: cannot open shared object file: No such file or directory) (EE) GLX: could not load software renderer expected keysym, got XF86TouchpadOn: line 120 of inet expected keysym, got XF86TouchpadOff: line 121 of inet Xlib: extension "RANDR" missing on display ":11.0". Xlib: extension "RANDR" missing on display ":11.0". 2013-02-19 18:04:52,887 your version of PyGTK is too old - expect some bugs Xlib: extension "RANDR" missing on display ":11.0". 2013-02-19 18:04:53,021 server uuid is b09626eb2c7c4ad2ac8304b1c4dae147 2013-02-19 18:04:53,024 Warning: X server does not support required extension Randr 2013-02-19 18:04:53,083 using notification forwarder: DBUSNotificationsForwarder(org.freedesktop.Notifications) 2013-02-19 18:04:53,083 Warning: outdated/buggy version of Python (2.6.6.final.0), switching to process polling every 2 seconds to support 'exit-with-children' 2013-02-19 18:04:53,087 pulseaudio server started with pid 1419 /bin/sh: pulseaudio: command not found 2013-02-19 18:04:53,092 xpra server version 0.8.5 /bin/sh: xterm: command not found 2013-02-19 18:04:53,151 xpra is ready.
And just shy of 2 seconds later, it added:
2013-02-19 18:04:55,086 all children have exited and --exit-with-children was specified, exiting 2013-02-19 18:04:55,087 all children have exited and --exit-with-children was specified, exiting 2013-02-19 18:04:55,087 Warning: pulseaudio has terminated. Either fix the pulseaudio command line or use --no-pulseaudio to avoid this warning.
(Trying to connect anyway leads to a timeout error, whether attempted from a Windows cmd line or with a launcher GUI)
From your own output:
/bin/sh: pulseaudio: command not found
/bin/sh: xterm: command not found
You are trying to execute commands that are not installed - all the log messages are correct.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/267