In my case, it seems to be related to Bug #382473: right-alt key not working after changing "keyboard layout change" key to "both alt keys together"
I still have no fix, but at least other preople are suffering with me ;-)
In my case, it seems to be related to Bug #382473:
right-alt key not working after changing "keyboard layout change" key to "both alt keys together"
I still have no fix, but at least other preople are suffering with me ;-)