Re: [Must-fix] Keyboard occasionally endlessly repeating keys

Vojtech Pavlik (vojtech@suse.cz)
Fri, 20 Jun 2003 23:10:43 +0200


On Fri, Jun 20, 2003 at 10:24:44PM +0200, Jörn Engel wrote:

> After having upgraded my notebook to 2.5.72, I noticed a rare problem,
> that occurs about twice a day, maybe more. After pressing a key, it
> gets repeated endlessly until the next key is pressed. When typing
> fast, it is quite possible to cover up a couple of these, as the
> repeats appear to happen at the set keyboard rates. Problem never
> occured with any 2.4 kernel.
>
> I remember having read about this problem on the list before, but
> didn't search my archive yet. Also, I consider this to be a show
> stopper, as the bug is already nasty when hitting 'q' inside mutt once
> and might have worse effects with other programs. YMMV.

Yes, I know about the problem. I wasn't able to pin it down yet, though.
It looks like the keyboard might just 'forget' to send a key release.
This is not a problem on 2.4, since 2.4 uses the keyboard hardware
autorepeat. 2.5 does autorepeat in software and if the keyboard doesn't
send the release, well ...

But it might be a software problem, too. If you want to help, you can
run with I8042_DEBUG_IO enabled all the time and send me the log from
around the point in time when it happened.

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR
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