From: Vojtech Pavlik <vojtech@suse.cz>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Christoph Pfister <christophpfister@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: keyboard stopped working after de9ce703c6b807b1dfef5942df4f2fadd0fdb67a
Date: Sat, 28 Jul 2007 22:55:14 +0200 [thread overview]
Message-ID: <20070728205514.GA17084@suse.cz> (raw)
In-Reply-To: <d120d5000707171252j501a25f5v56beae0c11462cb9@mail.gmail.com>
On Tue, Jul 17, 2007 at 03:52:07PM -0400, Dmitry Torokhov wrote:
> Hi Christoph,
>
> On 7/17/07, Christoph Pfister <christophpfister@gmail.com> wrote:
> >
> >Yep, attached (cold reboot, not pressing any keys, 2.6.21).
> >
>
> Ok, I see. You don't use PS/2 mouse and so BIOS told us that mouse is
> absent and reassigned IRQ12 to EHCI controller. However we do not
> listen to BIOS on i386 (for historucal reasons) and process with
> registering AUX port... Now IRQ12 is shared between AUX port and EHCI
> and the keyboard controller is unhappy wehereas before (with polling
> timer) it would release IRQ12 and close port...
Here I should add that IRQ sharing between ISA/LPC where i8042 lives and
PCI where EHCI lives doesn't work - only one of the sides will ever be
able to trigger interrupts, depending on the bridge config.
> Does your keyboard start working if you boot with i8042.noaux?
--
Vojtech Pavlik
Director SuSE Labs
prev parent reply other threads:[~2007-07-28 20:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 20:49 keyboard stopped working after de9ce703c6b807b1dfef5942df4f2fadd0fdb67a Christoph Pfister
2007-07-13 21:04 ` Christoph Pfister
2007-07-16 14:49 ` Dmitry Torokhov
2007-07-17 19:01 ` Christoph Pfister
2007-07-17 19:52 ` Dmitry Torokhov
2007-07-18 8:41 ` Christoph Pfister
2007-07-28 20:55 ` Vojtech Pavlik [this message]
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