[Parti-discuss] Can't connect to the X server created by Xpra

[Christian Jaeger]

Hello

I can't connect to the X server started by Xpra. Maybe the reason is
found from error messages printed to the Xpra log.

In the following, chrootlogin is a tool (written by me) to enter a
chroot that includes setting up /dev, /proc, etc., and if requested by
-X also by passing in the current X connection (a trusted one, and
timeout 0 means disable X authority from timing out; it should work
the same as ssh -Y). In the chroot I'm running Debian testing. I've
changed do-build to install to $HOME, (and set PATH and PYTHONPATH),
which is why I'm calling xpra without the prefix.

chrisxpra at novo:~$ xpra start :14
Entering daemon mode; any further errors will be reported to:
  /home/chrisxpra/.xpra/novo-14.log

At this point, the above log file contains:

_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/novo:14
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
SELinux: Disabled on system, not enabling in X server
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic,
removing from list!
[dix] Could not init font path element
/usr/share/fonts/X11/100dpi/:unscaled, removing from list!
[dix] Could not init font path element
/usr/share/fonts/X11/75dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/Type1,
removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi,
removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi,
removing from list!
[dix] Could not init font path element
/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, removing from list!
SELinux: Disabled on system, not enabling in X server
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic,
removing from list!
[dix] Could not init font path element
/usr/share/fonts/X11/100dpi/:unscaled, removing from list!
[dix] Could not init font path element
/usr/share/fonts/X11/75dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/Type1,
removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi,
removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi,
removing from list!
[dix] Could not init font path element
/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, removing from list!
Xlib:  extension "RANDR" missing on display ":14.0".
Xlib:  extension "RANDR" missing on display ":14.0".
Xlib:  extension "RANDR" missing on display ":14.0".
X Error of failed request:  BadValue (integer parameter out of range
for operation)
  Major opcode of failed request:  118 (X_SetModifierMapping)
  Value in failed request:  0x17
  Serial number of failed request:  21
  Current serial number in output stream:  21

from another x terminal session:

novo:~# chrootlogin -X /mnt/media/chroots/sid chrisxpra --timeout 0
chrisxpra at novo:~$ xpra attach :14
Attached (press Control-C to detach)
Missing window or missing property or wrong property type PULSE_SERVER (latin1)
Missing window or missing property or wrong property type PULSE_COOKIE (latin1)
Missing window or missing property or wrong property type PULSE_ID (latin1)

adding this to the log file:
New connection received
Handshake complete; enabling connection

but (in a third x terminal session):

novo:~# chrootlogin /mnt/media/chroots/sid chrisxpra
chrisxpra at novo:~$ export DISPLAY=:14
chrisxpra at novo:~$ xmessage hello
No protocol specified
Error: Can't open display: :14

chrisxpra at novo:~$ export DISPLAY=novo:14
chrisxpra at novo:~$ xmessage hello
Error: Can't open display: novo:14

Any idea?

Christian.