I found some spare time to look at it. Applications started within the session, always stuck in select, endlessly waiting for a response in my case.
I had prepended a gnome-terminal before xmodmap in Xgl-session. Here is its backtrace Core was generated by `/usr/bin/gnome-terminal'. #0 0xb7fc3410 in __kernel_vsyscall () (gdb) bt #0 0xb7fc3410 in __kernel_vsyscall () #1 0xb75fb2dd in select () from /lib/tls/i686/cmov/libc.so.6 #2 0xb70c155a in _xcb_in_read_block (c=0x80a7ca0, buf=0x80a7328, len=8) at xcb_in.c:248 #3 0xb70c07fc in xcb_connect_to_fd (fd=3, auth_info=0xbfb79c10) at xcb_conn.c:131 #4 0xb70c2f21 in xcb_connect (displayname=0x0, screenp=0x0) at xcb_util.c:279 #5 0xb76d57f7 in _XConnectXCB () from /usr/lib/libX11.so.6 #6 0xb76be109 in XOpenDisplay () from /usr/lib/libX11.so.6 #7 0xb7a1f032 in gdk_display_open () from /usr/lib/libgdk-x11-2.0.so.0 #8 0xb79fca0d in gdk_display_open_default_libgtk_only () from /usr/lib/libgdk-x11-2.0.so.0 #9 0xb7bb2e4f in gtk_init_check () from /usr/lib/libgtk-x11-2.0.so.0 #10 0xb7bb2e84 in gtk_init () from /usr/lib/libgtk-x11-2.0.so.0 I also checked if xauth really add the token for Xgl and it works correctly. -- [Hardy] Race condition in Xgl startup process https://bugs.launchpad.net/bugs/176515 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs