How to set the Meta key with xkb? Adding
key <AA06> { [ meta, meta ] };
to /usr/share/X11/xkb/symbols/us (in the "basic" section) and then running sudo dpgk-reconfigure xkb-data seems to work some times, and other times not. In particular, it seems to forget my setting when I switch back and forth between keyboard layouts (even though I added a similar line to the Swedish layout that I'm also using).
Checking with xev, the key I want as meta is initially mapped to Meta_L (as it should be) but after a switch of keyboard layouts, it's mapped to NoSymbol. Sometimes the behaviour is less predictable, and it's mapped to 'NoSymbol' already at boot.
How would I go ahead to get a better picture of where it's going wrong?