Re: Fedora 13 usb key failure

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On 06/17/2010 09:37 AM, Tom Horsley wrote:
> On Thu, 17 Jun 2010 08:56:44 -0700
> JD wrote:
>
>    
>> I am using usb-based wireless KB and Mouse.
>> They are both functional during bios, and after
>> F13 boot - single user, and multi-user.
>>      
> That is usually a symptom of the bios not being
> set (or not even having the option) to emulate
> a ps/2 keyboard from the usb keyboard.
>
> I'm pretty sure grub does not have any usb support
> at all and relies on bios emulation.
>
> Once a linux kernel is booted, it does have
> usb drivers, so the keyboard can talk again.
>
> According to the wiki, grub2 does have a usb
> support module it can load, but the grub that
> normally ships with fedora is not (yet anyway)
> grub2.
>    

Hi Tom,
perhaps you were addressing the other guy who was having problems.
I just wanted to report that I am not having problems at all,
BIOS, Grub menu, single user and multiuser all work just fine.

Another possibility for why it is not working for the originator
of this thread is the USB chipset. Having worked at some HW integration
companies that were using various chipsets from different manufacturers,
all USB chipsets do not behave the same way, and some require a rather
frequent HW poll that consumes quiet a bit of bus bandwidth.
Perhaps the originator of this thread is really experiencing a USB HW
issue.

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