#0  0x000000000041d419 in x_server_local_get_authority_file_path (server=server@entry=0x7f4a4000a960) at x-server-local.c:304
        __FUNCTION__ = "x_server_local_get_authority_file_path"
#1  0x000000000041471c in seat_xlocal_run_script (seat=0x22559e0, display_server=0x7f4a4000a960, script=0x224e070) at seat-xlocal.c:290
        path = <optimized out>
        x_server = 0x7f4a4000a960
#2  0x000000000040fa39 in run_script (seat=seat@entry=0x22559e0, display_server=display_server@entry=0x7f4a4000a960, script_name=0x2260a10 "/sbin/prime-offload", user=user@entry=0x0) at seat.c:302
        script = 0x224e070
        result = 0
#3  0x00000000004126f2 in display_server_ready_cb (display_server=0x7f4a4000a960, seat=0x22559e0) at seat.c:1197
        script = <optimized out>
#4  0x00007f4a5920e5e7 in _g_closure_invoke_va (closure=0x2281970, return_value=0x0, instance=0x7f4a4000a960, args=0x7fffc7c0b568, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:831
        marshal = 0x7f4a59210140 <g_cclosure_marshal_VOID__VOIDv>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x2281950
        __FUNCTION__ = "_g_closure_invoke_va"
#5  0x00007f4a59227088 in g_signal_emit_valist (instance=0x7f4a4000a960, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffc7c0b568) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3215
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x7f4a4000a960, ihint = {signal_id = 24, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 36181744}
        signal_id = <optimized out>
        instance_type = <optimized out>
        emission_return = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        rtype = 4
        static_scope = 0
        fastpath_handler = <optimized out>
        closure = 0x2281970
        run_type = <optimized out>
        l = <optimized out>
        fastpath = <optimized out>
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#6  0x00007f4a59227ce2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffc7c0b640, reg_save_area = 0x7fffc7c0b580}}
#7  0x00000000004097d3 in display_server_real_start (server=<optimized out>) at display-server.c:97
No locals.
#8  0x0000000000419fd1 in read_cb (source=<optimized out>, condition=<optimized out>, data=0x7f4a4000a960) at unity-system-compositor.c:305
        compositor = 0x7f4a4000a960
        n_to_read = <optimized out>
        id = <optimized out>
        payload_length = <optimized out>
#9  0x00007f4a58f3ece5 in g_main_dispatch (context=0x224afc0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3064
        dispatch = 0x7f4a58f81350 <g_io_unix_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x7f4a4000a960
        callback = 0x419cd0 <read_cb>
        cb_funcs = 0x7f4a591fc920 <g_source_callback_funcs>
        cb_data = 0x2278a60
        need_destroy = <optimized out>
        source = 0x2281fd0
        current = 0x22494a0
        i = 0
#10 g_main_context_dispatch (context=context@entry=0x224afc0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3663
No locals.
#11 0x00007f4a58f3f048 in g_main_context_iterate (context=0x224afc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3734
        max_priority = 2147483647
        timeout = 59988
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 4
        fds = 0x22783d0
#12 0x00007f4a58f3f30a in g_main_loop_run (loop=0x224b1a0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#13 0x0000000000407d1e in main (argc=1, argv=0x7fffc7c0bad8) at lightdm.c:1223
        pid_file = <optimized out>
        option_context = <optimized out>
        result = <optimized out>
        groups = 0x2270410
        i = <optimized out>
        dir = <optimized out>
        n_seats = <optimized out>
        test_mode = 0
        pid_path = 0x427353 "/var/run/lightdm.pid"
        log_dir = 0x0
        run_dir = 0x0
        cache_dir = 0x0
        default_log_dir = <optimized out>
        default_run_dir = <optimized out>
        default_cache_dir = 0x224af70 "sessions-directory"
        show_version = 0
        link = <optimized out>
        messages = 0x224b240
        options = {{long_name = 0x428cad "config", short_name = 99 'c', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x636b90 <config_path>, description = 0x42739d "Use configuration file", arg_description = 0x4273b4 "FILE"}, {long_name = 0x4273b9 "debug", short_name = 100 'd', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x636b78 <debug>, description = 0x4273bf "Print debugging messages", arg_description = 0x0}, {long_name = 0x4273d8 "test-mode", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fffc7c0b7d8, description = 0x426cd8 "Run as unprivileged user, skipping things that require root access", arg_description = 0x0}, {long_name = 0x4273e2 "pid-file", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fffc7c0b7e0, description = 0x4273eb "File to write PID into", arg_description = 0x4273b4 "FILE"}, {long_name = 0x427402 "log-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fffc7c0b7e8, description = 0x42740a "Directory to write logs to", arg_description = 0x427425 "DIRECTORY"}, {long_name = 0x42742f "run-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fffc7c0b7f0, description = 0x426d20 "Directory to store running state", arg_description = 0x427425 "DIRECTORY"}, {long_name = 0x427437 "cache-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fffc7c0b7f8, description = 0x426d48 "Directory to cache information", arg_description = 0x427425 "DIRECTORY"}, {long_name = 0x42744e "version", short_name = 118 'v', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fffc7c0b7dc, description = 0x427441 "Show release version", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
        error = 0x0