Changing the scaling during a shadow crashes with:
Traceback (most recent call last): File "./xpra/client/gtk_base/gtk_tray_menu_base.py", line 855, in scaling_activated File "./xpra/client/ui_client_base.py", line 1067, in scaleset File "./xpra/client/ui_client_base.py", line 1096, in scale_change TypeError: 'NoneType' object is not iterable
Change is made before showing the screens
during a shadow: during
attach of an already-started
This looks like a harmless stacktrace. r19018 should avoid that, both from the tray menu or key shortcuts. r19019 also grays out the tray menu entries until the server connection is fully established.
If you still have problems, please provide steps to reproduce.
Not able to reproduce, as you blocked the avenue for doing so :-D. Setting from the command line does not affect.
I'd of course prefer if the option was allowed to be set for the future (i.e. as kind of given through the command line), but I can accept fix as resolution.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1811