This post is older than a year. Consider some information might not be accurate anymore.
The Logitech Wireless Presenter R400 is not working properly under Ubuntu 14.04. This post provides a solution, how to get the presenter working properly.
create the udev file (rules)
vim /etc/udev/hwdb.d/70-r400.hwdb
contents of +70-r400.hwdb+
# Logitech Presenter R400
keyboard:usb:v046DpC52Dd*dc*dsc*dp*ic*isc*ip*in00*
KEYBOARD_KEY_070029=esc
KEYBOARD_KEY_07003e=f5
KEYBOARD_KEY_070037=b
update udev
sudo udevadm hwdb --update
sudo udevadm trigger /dev/input/event*
Reboot and happy presenting.
See also <a href=http://askubuntu.com/questions/565555/xubuntu-logitech-presenter-works-only-partialy”>http://askubuntu.com/questions/565555/xubuntu-logitech-presenter-works-only-partialy</a>