I'm having a similar problem.
It is with a PS/2 keyboard
The behaviour is only present for me in Fedora kernels > 22.214.171.124-50.
I've set inittab to default to 3 and turned off all rhgb and quiet.
I can then sit and boot into the newer kernel say 126.96.36.199-90 and press caps lock on and off until after about 20 seconds it stops responding. The boot continues but I can not type. The num lock also turns off if I had turned it on?
I've found that the system is still running and ctrl-alt+del will reboot the computer so the keyboard isn't completly dead?
I've tried a pure kernel 2.6.25 and that doesn't have the problem but I'm struggling to get my video card to install with that kernel. Most likely because I've not correctly installed it? I don't know?
I've registered a bug with fedora
but have had no response yet. I'm trying to build my own 188.8.131.52 and 184.108.40.206 kernels to see if it is between the two, although I see nothing that should cause it in the changelogs.
I've seen other references to this problem with other distros and no definite fix.
Some possible fixes are:
- disable legacy usb support in bios
- add acpi=off in kernel boot options
- continuously type during boot!!!
- buy USB keyboard
My setup is a x86_64 - Fedora 8 - ASUS NCCH-DL MB - TWIN Intel Xeon 3.0GHz processor 4 GB mem.