Qt applications hang

[Lowell Gilbert]

Francois Tigeot <ftigeot at wolfpond.org> writes:

> If I use X11 forwarding with 'ssh -X localhost' and log as myself, I get a
> lot of errors in the controlling xterm such as these:
> 
> 	X Error: BadWindow (invalid Window parameter) 3
> 	Major opcode:  7
> 	Minor opcode:  0
> 	Resource id:  0x49
> 
> However, the application is perfectly functional. File/Open in scribus
> opens a dialog and does not freeze the application window for example.
> 
> If I change the window manager in ~/.xinitrc, I don't need to use the ssh
> trick. With KDE's wm or a sole xterm Qt applications run fine.
> 
> I am now pretty sure there is something fishy with windowmaker.

It also sounds like  X11 security is involved.

It might help to try the ForwardX11Trusted option with ssh.