Maybe it's a motherboard/chipset issue? I've run across a problem in the server environment where the Ca810e motherboard simply will not allow Linux (with kernels from RedHat releases newer than 7.2) to continue past the kernel APM loading phase if a keyboard is not attached (even if the BIOS says to ignore keyboard errors). We either turn off APM completely via custom kernel, or attach a fake keyboard to the server.

The point is, it could be something Linux isn't handling correctly for the given chipset used on your motherboard. If you have access to another system with different hardware, try installing/using your keyboard with that one. It's a hassle, but that's how we figure out where the real culprit is sometimes. :)

Aleem Sunderji wrote:

oops...re-posted with the correct date...

i am having problems with a usb keyboard (microsoft natural keyboard
elite). on boot, the keyboard works fine (usb support is enabled in
the BIOS), and i can use the keyboard to select the boot image in
GRUB.

when the USB subsystem comes up in linux, the keyboard dies (i.e.
pressing the keys has no effect, and the capslock/numlock/scrolllock
keys do not activate the LEDs). other USB devices work fine though
(wacom graphire tablet, hauppauge radio tuner, yamaha cd writer).

a ps/2 keyboard attached to the system must be used to control the
system.

dmesg contains the following message:

hiddev0: USB HID v1.10 Keyboard [045e:000b] on USB2:11.0

lsmod shows that the following modules are loaded:

mousedev 5524 0 (unused)
evdev 5742 0 (unused)
wacom 7988 0 (unused)
keybdev 2976 0 (unused)
input 5920 0 [mousedev evdev wacom keybdev]
hid 11796 0 (unused)
usb-uhci 26168 0 (unused)
usbcore 77024 1 [wacom hid usbvision usb-uhci]

the system hardware browser in GNOME shows the keyboard listed, so it
seems that the system is aware of its presence.

i am using the keyboard with a KVM switch (which is why the keyboard
is listed as device #11 -- every time i switch consoles, linux
detects a device disconnect and reconnect, incrementing the device
number assigned). however, i have tried connecting the keyboard
directly to the machine, and the problem is the same.

the keyboard does not work in console mode OR in X. i have tested it
with other machines (win2000 and winXP) and it works fine.

configuration:

rh8.0 (2.4.18-14) on a dell dimension 2300
dual-boot with windows XP
128MB RAM, 30GB HD

any assistance is much appreciated...

aleem.


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