On Thu, 15 Mar 2007, Jiri Kosina wrote:

> (added linux-usb-devel@lists.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?

I will turn it OFF, if ON. I just recompiled the drivers with USB debugging
turned ON and I tried it on a machine that works. There are few enough
debugging messages so I will be able to copy off the screen. I now need
to wait in line to use the machine (about an hour or so), then I will
get back to you.

>
> Also, does this happen only with one particular type of keyboard, or with
> various ones?
>

Any keyboards I have tried including the Dell keyboards we have laying
all over the place. I even tried an Apple keyboard because they are
different. I didn't expect to "work," only to be recognized as a keyboard.


> -- 
> Jiri Kosina
>

I'll get back to you in about an hour.


Cheers,
Dick Johnson
Penguin : Linux version 2.6.16.24 on an i686 machine (5615.29 BogoMips).
New book: http://www.AbominableFirebug.com/
_


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