Thanks, Sebastian. I did the gdb gnome-settings-daemon bunch of lines run --debug Selected Displays, mirror images off, laptop off, apply then got on terminal screen:
Program received signal SIGSEGV, Segmentation fault. 0xb2ae9f00 in gdk_device_manager_list_devices@plt () from /usr/lib/gnome-settings-daemon-3.0/libmouse.so (gdb) backtrace #0 0xb2ae9f00 in gdk_device_manager_list_devices@plt () from /usr/lib/gnome-settings-daemon-3.0/libmouse.so #1 0xb2aecec5 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libmouse.so #2 0xb786b570 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #3 0xb786da93 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 #4 0xb786de30 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #5 0xb786e28b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0 #6 0xb7c5b19d in gtk_main () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #7 0x0804abc9 in main () Now where should the stacktrace appear? I did find an strace with yesterday's date, see attachment What is the cli code for glib, gtk, and gnome-settings-daemon debug symbols? Thanks for looking at this bug. Jerry ** Attachment added: "yesterday's strace from Display apply bug" https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1007588/+attachment/3179203/+files/strace.list -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007588 Title: cannot set displays on dual monitor: No such interface `org.gnome.SettingsDaemon.XRANDR_2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1007588/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
