I have a keyboard with no specially designed keys, so I was thinking I'd put in windows+up/down for controlling the master volume.
How would I do this?
An easy way is installing xbindkeys.
To set it up, once installed you need to set the
So instead, I would suggest you make your own with vim or gedit or whatever you prefer with the layout of:
(the tab is a real tab, not the word+perens "(tab)")
To get the key code, run (in the terminal)
For example, here is how mine looks (picture the non quoted lines as tabbed in):
Last thing you need to do is set xbindkeys to run at login. For Gnome/Mate/Cinnamon hit Alt+F2 and then type gnome-session-properties, click Add+ and for the command it's xbindkeys. The other two items are up to whatever you want.