linux-kernel - Re: [regression] 2.6.30 leaking keys on console switch

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Date:	Thu, 16 Jul 2009 11:02:47 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>, rjw@...k.pl,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Mike Galbraith <efault@....de>
Subject: Re: [regression] 2.6.30 leaking keys on console switch

On Mon, 13 Jul 2009, Andi Kleen wrote:

> > > > > > Are you seeing with a specific keyboard type(s), or is this a 
> > > > > > general problem? Could you confirm whether it is specific either 
> > > > > > to PS2 or USB keyboards only, or it does happen for both?
> > > > > Can't think of any input chnages in this timeftrame that would cause
> > > > > such effect. Maybe TTY changes?
> > > > By the way, if I understand it correctly, Andi is able to see the very 
> > > > same effect even inside X, so tty can be possibly ruled out, right?
> > > Umm, doesn't SuSE still use legacy keyboard driver instead of evdev in
> > > X? Thomas mentioned recently it still did...
> > 
> > It does.
> > 
> > If I understand Andi's problem though, he is able to trigger the problem 
> > even solely on console, with X not being involved at all.
> 
> Sorry, I tried again and I can't reproduce the console misbehaviour anymore.
> Only see it in X.  I thought I had seen it in links resetting to the first
> page, but I don't see that now.

So by total coincidence I reproduced exactly this behavior (*) (while not 
trying to do so) on system running 2.6.24-rc3, with PS/2 keyboard. 

Andi, are you absolutely sure that this appeared between .29 and .30 for 
you?

And if so, is there any chance you could try bisecting it?

(*) have been on virtual desktop where firefox was running, switched to 
console using Ctrl-Alt-F1, and switched back to X using F7. Firefox then 
popped up some dialog about configuring some feature that is triggered by 
pressing F7/AltF7, or whatever. Is that what you are seeing?

-- 
Jiri Kosina
SUSE Labs
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