linux-kernel - Re: USB Keyboard

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Date:	Thu, 15 Mar 2007 13:59:45 -0400
From:	"Dmitry Torokhov" <dmitry.torokhov@...il.com>
To:	"Jiri Kosina" <jikos@...os.cz>
Cc:	"linux-os (Dick Johnson)" <linux-os@...logic.com>,
	"Linux kernel" <linux-kernel@...r.kernel.org>,
	linux-usb-devel@...ts.sourceforge.net
Subject: Re: USB Keyboard

On 3/15/07, Jiri Kosina <jikos@...os.cz> wrote:
> (added linux-usb-devel@...ts.sourceforge.net to CC)
>
> On Thu, 15 Mar 2007, linux-os (Dick Johnson) wrote:
>
> > >> I have multiple AMD 64-bit servers in several configurations, with
> > >> several different motherboards, which fail to recognize a USB keyboard
> > >> when booted from a "stock" Linux kernel. They only work with a RedHat
> > >> kernel! I have removed all but one CPU from one in an attempt to find
> > >> the problem.
> > > [...]
> > >> linux-2.6.8 linux-2.6.9 linux-2.6.10 linux-2.6.11
> > >> linux-2.6.11.9 linux-2.6.12 linux-2.6.12.5 linux-2.6.13
> > >> linux-2.6.13.4 linux-2.6.15.4 linux-2.6.16.24 linux-2.6.16.4
> > >> linux-2.6.19
> > > Could you please turn on USB debugging (and also maybe HID debugging, but
> > > usb debug should be more interesting now) and send us the logs?
> > Ouch!  I can't do anything by copy from a screen! There is no way to get
> > `dmesg` without the keyboard! That's why I sent a request to
> > linux-kernel, hoping that the problem would sound familiar. All I can do
> > is boot the system (off a CD-ROM) and then pull the plug when the
> > keyboad doesn't work!
>
> You state that this happens on different hardware configurations, which
> looks pretty strange, there are many 64bit amd systems with working USB
> keyboards.
>
> Do you happen to have USB Legacy setting in BIOS? If so, could you try
> turning it off?
>
> Also, does this happen only with one particular type of keyboard, or with
> various ones?
>

Seeing .config might also be interesting.

-- 
Dmitry
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