xpra fails to start via ssh

[melmager]

susi@akoya:~> xpra start ssh://server --start-child=xterm
/usr/lib64/python3.11/site-packages/xpra/client/gtk3/client.py:8: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '4.0') before import to ensure that the right version gets loaded.
  from gi.repository import GObject, Gdk               #@UnresolvedImport
/usr/lib64/python3.11/site-packages/xpra/client/gtk3/client_base.py:14: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '4.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk, Gdk, GdkPixbuf  # @UnresolvedImport
xpra main error:
Traceback (most recent call last):
  File "/usr/lib64/python3.11/site-packages/xpra/scripts/main.py", line 125, in main
    return run_mode(script_file, cmdline, err, options, args, mode, defaults)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/site-packages/xpra/scripts/main.py", line 456, in run_mode
    return do_run_mode(script_file, cmdline, error_cb, options, args, mode, defaults)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/site-packages/xpra/scripts/main.py", line 507, in do_run_mode
    return run_remote_server(script_file, cmdline, error_cb, options, args, mode, defaults)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/site-packages/xpra/scripts/main.py", line 2087, in run_remote_server
    app = make_client(error_cb, opts)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/site-packages/xpra/scripts/main.py", line 1778, in make_client
    from xpra.client.gtk3.client import XpraClient
  File "/usr/lib64/python3.11/site-packages/xpra/client/gtk3/client.py", line 11, in <module>
    from xpra.client.gtk3.client_base import GTKXpraClient
  File "/usr/lib64/python3.11/site-packages/xpra/client/gtk3/client_base.py", line 28, in <module>
    from xpra.gtk.cursors import cursor_types
  File "/usr/lib64/python3.11/site-packages/xpra/gtk/__init__.py", line 7, in <module>
    gi.require_version("Gdk", "3.0")  # @UndefinedVariable
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/site-packages/gi/__init__.py", line 117, in require_version
    raise ValueError('Namespace %s is already loaded with version %s' %
ValueError: Namespace Gdk is already loaded with version 4.0

susi@akoya:~> 

login via ssh> ssh server works fine , so not a ssh problem

if i start on server

xpra start :104 --start=xterm -d auth --bind-tcp=0.0.0.0:10000,auth=none

client have access

client:

Operating System: openSUSE Tumbleweed 20231106
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11
Kernel Version: 6.5.9-1-default (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Pentium® Silver N5030 CPU @ 1.10GHz
Memory: 7.6 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 605
Manufacturer: MEDION
Product Name: E3223
System Version: ELAN

server Operating System: openSUSE Tumbleweed

so how i set the gdk ?

on client:

gtk-launch --version
3.24.38

[totaam]

openSUSE is not a supported platform so you didn't get the xpra package from xpra.org
Also, you didn't specify what xpra version you have installed, my guess is not a supported version

[melmager]

xpra v6.0-r34478M (ga3c265d6) beta

Quellpaket: | xpra-6.0+git20231005.a3c265d6-1.1

[totaam]

That's too old, try something more recent.

[melmager]

last version must be 5.0.3 - so v6.0 must be beta .. i try to install 5.0.3
and I ask Open Suse :-)

[totaam]

I cannot reproduce this problem with any supported version and my Fedora systems do also default to Gtk 4, so the workarounds we use for forcing Gtk 3 do work.