Comment 35 for bug 280646

Backtrace from gnome-power-manager on gpm_button_filter_x_events with numlock off:

#0 gpm_button_filter_x_events (xevent=0xbf9ce898, event=0x81774f8, data=0x81ac5b8)
    at gpm-button.c:79
#1 0xb7702679 in gdk_event_translate (display=0x8175000, event=0x81774f8,
    xevent=0xbf9ce898, return_exposes=0)
    at /build/buildd/gtk+2.0-2.14.3/gdk/x11/gdkevents-x11.c:991
#2 0xb77040c3 in _gdk_events_queue (display=0x8175000)
    at /build/buildd/gtk+2.0-2.14.3/gdk/x11/gdkevents-x11.c:2276
#3 0xb77044ef in gdk_event_dispatch (source=0x817a7d0, callback=0, user_data=0x0)
    at /build/buildd/gtk+2.0-2.14.3/gdk/x11/gdkevents-x11.c:2364
#4 0xb71d16f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#5 0xb71d4da3 in ?? () from /usr/lib/libglib-2.0.so.0
#6 0xb71d52c2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#7 0x08068c92 in main (argc=2, argv=0x145e) at gpm-main.c:268