Comment # 13 on bug 1200983 from Takashi Iwai

(In reply to Michael Hirmke from comment #12)
> (In reply to Stefan Dirsch from comment #10)
> > Thanks for testing. Indeed this makes it a kernel issue. You could also test
> > the mouse on the Linux console via 'evtest /dev/input/eventXX', but this is
> > a bit complicated to figure out the right device. So I only wanted to
> > mention keyboard here.
> 
> Keyboard and mouse both have problems one the console, too.
> The keyboard vanishes after a few seconds and returns, as soon as a key is
> pressed, but the first keypress is not shown. The mouse never works on the
> console - no events are shown.

What do you mean "vanishes" here? It means that the /dev/input/event* device is
gone?

The point to check here is whether the device file persists and can read/write
from a user-space (no matter whether it's processed or not).  Or is the (USB?)
audio device itself disappears and reappears automatically.