Comment 26 for bug 261721

I think that you need to look a little closer at what's actually
happening for these "Release" events possibly. Try starting a Failsafe
Terminal at your login screen. If you run xev over there, you'll see
that a KeyRelease event is somehow generated, however it is *followed*
by the KeyPress event. The two being out of order may be confusing
gnome's keyboard handler and gnome power manager.

Edmundo Valle Neto wrote:
> For me it doesn't happens with the brightness key but when I change the
> volume, Im using a Toshiba U305, as already reported switching to a
> virtual terminal, pressing alt+prtscr+r and returning to X make the
> keyboard and right click work again. Its really anoying.
>
>

--
Mario Limonciello
*Dell | Linux Engineering*
<email address hidden>