linux-kernel - Re: synaptics: PS/2 touchpad isn't detected if a keyboard key is held down on boot

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Message-ID: <CABWXVkMUFdRKNm76Vc3oJ+Ef9M_MS1xU2TKh=rdyv-t9Cq5V1w@mail.gmail.com>
Date:	Sat, 7 Dec 2013 15:01:07 +0400
From:	Andrey Moiseev <o2g.org.ru@...il.com>
To:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-hotplug@...r.kernel.org
Subject: Re: synaptics: PS/2 touchpad isn't detected if a keyboard key is held
 down on boot

psmouse module is not loaded when I hold down a key on boot (when
GRUB2 says "loading vmlinuz"), and, in its turn, the PS/2 touchpad
doesn't work. Latest mainline kernel, latest stable one and probably
many older ones. I guess i8042's buffer gets full and that confuses
drivers somehow.

On Fri, Dec 6, 2013 at 9:22 PM, Andrey Moiseev <o2g.org.ru@...il.com> wrote:
> This is an ancient bug, I noticed it since I bought my notebook.
> Synaptics PS/2 touchpad is not detected and is not shown in
> /dev/input/event* if I hold a keyboard key down when booting just
> started.
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