Ubuntu – Set up Logitech K380 for Linux Ubuntu 16.04 LTS

From what I understand, to put it in simple words, you want to create a custom key (be it a combination of keys).

If that's the case and you are using Ubuntu Precise go to SYSTEM SETTINGS then KEYBOARD and then hit the SHORTCUTS tab.

If the feature you want isn't in the list just go to the bottom on the list on the left hand side and click CUSTOM SHORTCUTS.

You can then click the little + symbol at the bottom of the screen to add a new custom shortcut. Then type in the Shortcut name followed by the command to invoke it (really depends and what you want to do). You'll have to research the command you need to start or invoke the application or task you want to do. After typing in the command hit OK.

You will now see the shortcut created in the list. Towards the right it will have the word DISABLED. click on the word DISABLED and then click the key or combination of keys you want to use to activate this shortcut (the command) you created.

for example: if I want to create a key shortcut to open www.google.com in the browser and want to call the shortcut CHROME. I then want it to run when I hit CTRL + W, I would do the following in the SYSTEM SETTINGS > KEYBOARD > SHORTCUTS section

NAME: CHROME

COMMAND: chromium-browser http://www.google.com

• I would then hit the OK button

• Then, I would click on the word DISABLED that appears the right of the shortcut named CHROME

• After clicking on the word DISABLED I would hit CTRL and W key together.

You can use the SUPER key or any key on your keyboard. I've tested this on my system with a Logitech (being a Logitech Fan lol).

This issue seems often to occur on USB 3.0 ports, so try a USB 2.0 before continuing.

If switching ports does not work, you can try my suggestions on Arch Linux forums, you can try to force a re-enumeration of Unified devices. This can be done by writing a special request to the receiver:

# should output /dev/hidrawN where N is usually 0
hidraw=/dev/$(cd /sys/bus/hid/drivers/logitech-djreceiver/*/hidraw && echo hidraw*)
printf '\x20\xff\x81\0\0\0\0\0\0\0\0\0\0\0\0' | sudo tee "$hidraw" >/dev/null

It has been confirmed to work. You only need to perform this action once in a boot, so a startup script should be fine.