On Saturday 16 January 2016, Thierry de Coulon wrote:
There is on thing however: there is a USB switch
between the keyboard and
the computer. I'd have to test if this happens on the other computers
connected, but I seldom have to use these keys on them because they have
special uses (video, backup).
A few days ago I noted, that I have the same problem and I was - at least - able to
get AltGr
behavior back (without logging out and in) by un-checking the "Enabled Keyboard
Layouts" check
button.
Now I see that there is something in comon between us both. I also use an external USB
switch, to
switch keyboard and mouse between a Windows and a Linux system. I use it very seldom, for
sure not
before the problem happened. But who knows ...
I furthermore mostly don't shut-down my system but put it into the Suspend state. My
assumption is
that sometimes it does not correctly re-initiate all parts of the system when coming out
of
Suspend.
Gerhard