Suspend-to-RAM--resume: keyboard problem

[Serguei Miridonov]

On Monday 22 March 2010, Serguei Miridonov wrote:
> Hello,
> 
> I have the following problem: after several days of up time with
> 2-3 suspend-to-RAM--resume cycles every day some keys stop
> working. The problem appears to be in X server: I can switch user
> in KDE and start a new X server where keyboard works as expected.
> I can even save key mapping with xmodmap and then partially
> restore keyboard functionality in the X session with broken keys.
> 
> I have filed a bug but there is no any confirmation from developers
> or other users:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=574666
> 
> Any idea?
> 
> Serguei.

OK, I have just found that this has nothing to do with suspend-resume. 
The same problem with keyboard happens right after 10 switch-to-text-
console and back cycles (Ctrl-Alt-F2 and then Alt-F1: repeat 10 
times).

Is there anything to check in order to find the reason? How can I 
check keyboard mapping and other keyboard settings by something other 
than xmodmap?