On Wed, Jan 22, 2014 at 5:56 AM, Patrick Dupre <pdupre@gmx.com> wrote:

Hello,

How do you understand this.

qcad works fine on a fedrao 16 x64 machine.
It breaks the gnome-session on a fedora 20 machine (i686). But
when I make a ssh -X connection on the fedora 18 from the
fedora 20 machine and run qcad on the fedora 18, it also
breaks the local gnome-session (ie on the fedora machine).
Why the remote qcad interfers with the local machine ?

Have you tried running qcad from gnome-terminal and see if there's any helpful console output? If it takes down the whole gnome-session you may need to capture it to a file:

qcad 2>&1 > qcad.log

or something like that.

Richard