Hi,
We've been using xpra on Ubuntu 16.04 for a while now without issues,
(thanks!) but after upgrade to Ubuntu 18.04 we cant get the client to
work under unity.
We run xpra server inside an lxc container. The container runs Ubuntu
18.04 (and has done so before the client side has been upgraded without
issues), and xpra --version says: xpra v2.3.4-r20509
Xpra is started like this:
xpra start --sharing=yes :100
Then we attach from outside the container, with the same version of xpra:
xpra attach --sharing=yes ssh:10.0.3.140:100
When run from a normal, "Ubuntu" session (meaning the new Gnome shipped
with Ubuntu 18.04), all is well.
However, if we log into a unity session (which is what we'd like to do),
xpra cannot attach, giving:
2018-10-05 08:35:15,622 Xpra gtk2 client version 2.3.4-r20509 64-bit
2018-10-05 08:35:15,623 running on Linux Ubuntu 18.04 bionic
2018-10-05 08:35:17,212 GStreamer version 1.14.1 for Python 2.7.15 64-bit
2018-10-05 08:35:17,376 No OpenGL_accelerate module loaded: No module
named OpenGL_accelerate
/usr/lib/python2.7/dist-packages/xpra/client/gl/gtk_base/gtkgl_check.py:152:
Warning: cannot register existing type 'GdkScreen'
glarea.realize()
/usr/lib/python2.7/dist-packages/xpra/client/gl/gtk_base/gtkgl_check.py:152:
Warning: g_once_init_leave: assertion 'result != 0' failed
glarea.realize()
/usr/lib/python2.7/dist-packages/xpra/client/gl/gtk_base/gtkgl_check.py:152:
GtkWarning: gdk_screen_is_composited: assertion 'GDK_IS_SCREEN (screen)'
failed
glarea.realize()
Segmentation fault (core dumped)
If we run it under unity with:
xpra attach --sharing=yes --opengl=no ssh:vagrant@10.0.3.140:100
...then it attaches fine (also according to the server log file), but
running a program on :100 does not open a window on the attached client.
I have also noticed that if you click on the app indicator that xpra
client adds to unity, and click on anything (say Information>>Session
info), nothing is displayed either.
How do I go about debugging this further?
Thanks.
--
Iwan
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