Subject: Re: ehci and Dell keyboards
To: Patrick Welche <prlw1@newn.cam.ac.uk>
From: Lennart Augustsson <lennart@augustsson.net>
List: current-users
Date: 10/11/2005 22:39:12
Does the BIOS have some legacy keyboard emulation that you
can try turning off?
-- Lennart
Patrick Welche wrote:
> If I have ehci enabled, my usb keyboard stops working once the ehci driver
> is loaded. (Can type at boot prompt etc) With ehci commented out, all is OK:
>
> uhidev0 at uhub3 port 1 configuration 1 interface 0
> uhidev0: DELL DELL USB Keyboard, rev 1.10/1.04, addr 2, iclass 3/1
> ukbd0 at uhidev0: 8 modifier keys, 6 key codes
>
> with ehci:
>
> ehci0 at pci0 dev 29 function 7: Intel 82801FB/FR USB EHCI Controller (rev. 0x03)
> ehci0: interrupting at ioapic0 pin 21 (irq 9)
> ehci0: EHCI version 1.0
> ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
> usb4 at ehci0: USB revision 2.0
> uhub4 at usb4
> uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
> uhub4: 8 ports with 8 removable, self powered
>
> but then just the mouse is seen on
>
> uhidev0 at uhub3 port 2 configuration 1 interface 0
> uhidev0: Dell Dell USB Mouse, rev 1.10/29.10, addr 2, iclass 3/1
> ums0 at uhidev0: 3 buttons and Z dir.
> wsmouse0 at ums0 mux 0
>
> but no keyboard..
>
> (Entertainingly this is true for Dell GX280 BIOS revisions A04 and the
> lastest A06 which allegedly fixes USB troubles. A05 seems to work.)
>
> How can I help?
>
> Cheers,
>
> Patrick
>