I replaced gnome with xfce in the .dmrc file in my home folder. Gnome did not start automatically; xfce did not start either (but I am not sure, because the system is headless.
I tried what you said in 2 manners: 1. Opened gnome session with nx and connected also remotely with ssh, through which I started valgrind. Then I tried to connected with vnc and got the image of the gnome nx session. However, the image was a bit screwed up and it was frozen; it did not respond to movements and clicks of the mouse. You can find the output in the valgrind_ssh_output.txt file. 2. I launched valgrind in a terminal that resided in the nx gnome session. Then I tried to open the vnc session. When valgrind was running, I did not get the image of the gnome nx session through vnc; but when valgrind was not running, the image of the gnome nx session was forwarded through vnc; like previously, the image was not clear and vnc was frozen. You can find the output of valgrind in the valgrind_nx_output.txt file. ** Attachment added: "valgrind_nx_output" http://librarian.launchpad.net/6899764/valgrind_nx_output.txt -- [apport] vino-server crashed with SIGSEGV in g_type_check_class_cast() https://launchpad.net/bugs/91973 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs