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Due to a bug in the kernel driver for the Apple Magic Trackpad, two finger right click doesn't work by default. However, you can fix the issue by running the following:

xinput set-prop $DEVICE_ID "Synaptics Click Action" 1 3 2

...where $DEVICE_ID is the device id given for the device in the output of xinput --list.

Due to the nature of the device (Bluetooth) it's not always connected. Can I run this fix script every time that xinput detects the device as connected?

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Did you find the answer to that? –  Mashimom Feb 28 '14 at 21:43

1 Answer 1

Here is a python script for monitoring all Bluetooth devices.

You could try running the scripts first. Then modify the command part with your own code, then autostart this script with your system. Refer to here and here for more infomation.

#!/usr/bin/env python

import sys
import signal
import logging
import dbus
import dbus.service
import dbus.mainloop.glib
import gobject

LOG_LEVEL = logging.INFO
#LOG_LEVEL = logging.DEBUG
LOG_FILE = "/dev/stdout"
#LOG_FILE = "/var/log/syslog"
LOG_FORMAT = "%(asctime)s %(levelname)s %(message)s"

def device_property_changed_cb(property_name, value, path, interface):
    device = dbus.Interface(bus.get_object("org.bluez", path), "org.bluez.Device")
    properties = device.GetProperties()

    if (property_name == "Connected"):
        action = "connected" if value else "disconnected"
#
# Replace with your code to write to the PiFace
#
        print("The device %s [%s] is %s " % (properties["Alias"], properties["Address"], action))

def shutdown(signum, frame):
    mainloop.quit()

if __name__ == "__main__":
    # shut down on a TERM signal
    signal.signal(signal.SIGTERM, shutdown)

    # start logging
    logging.basicConfig(filename=LOG_FILE, format=LOG_FORMAT, level=LOG_LEVEL)
    logging.info("Starting btminder to monitor Bluetooth connections")

    # Get the system bus
    try:
        dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
        bus = dbus.SystemBus()
    except Exception as ex:
        logging.error("Unable to get the system dbus: '{0}'. Exiting btminder. Is dbus running?".format(ex.message))
        sys.exit(1)

    # listen for signals on the Bluez bus
    bus.add_signal_receiver(device_property_changed_cb, bus_name="org.bluez", signal_name="PropertyChanged",
            dbus_interface="org.bluez.Device", path_keyword="path", interface_keyword="interface")

    try:
        mainloop = gobject.MainLoop()
        mainloop.run()
    except KeyboardInterrupt:
        pass
    except:
        logging.error("Unable to run the gobject main loop")

    logging.info("Shutting down btminder")
    sys.exit(0)
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And where is the answer? –  A.B. 7 hours ago

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