linux-kernel - Re: 2.6.31-rc6 (yeah, I know...): weird tty / X.org state currently

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Message-ID: <20090910164232.GA27404@rhlx01.hs-esslingen.de>
Date:	Thu, 10 Sep 2009 18:42:32 +0200
From:	Andreas Mohr <andi@...as.de>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Andreas Mohr <andi@...as.de>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.31-rc6 (yeah, I know...): weird tty / X.org state currently

Hi,

On Thu, Sep 10, 2009 at 09:25:00AM -0700, Dmitry Torokhov wrote:
> On Thursday 10 September 2009 03:31:26 am Andreas Mohr wrote:
> > Possibly the kernel's control key state got stuck in a weird state,
> > perhaps due to some input layer race conditions or so.
> >
> > Or is it X.org's input handling which is responsible for Ctrl-Alt-F1
> > etc. combos? I wouldn't think so...
> 
> X is solely responsible for handling input when active. It switches
> console in RAW mode which bypasses kernel processing) and does it's
> own thing. This includes switching VTs upon Ctrl-ALt-Fx.

OK, but what's puzzling is that there's no indication whatsoever that
there's any broken Ctrl activity (neither in konsole nor in a tty),
yet the tty gets switched readily as soon as only Alt-Fx gets pressed in
X.org. 

IOW (unless that's wrong) you're saying that it's X.org which has
a broken Ctrl key state (but solely when doing the Alt-Fx switch,
_not_ when doing Ctrl-L or regular letter input), not the kernel.

If so, would this problem warrant notifying X.org upstream,
or is it likely to be fixed in newer X.org releases?

Andreas Mohr
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