[Clfs-support] The case of the dead keyboard with the loaded driver...

[William Harrington]

On Wed, 16 Sep 2015 02:12:21 +0200
"A.J. Venter" <ajventer at gmail.com> wrote:

> I haven't the foggiest idea how to debug further. I can only do so
> much from within a chroot, but to debug it with the live kernel is
> rather tricky when that kernel won't let me type and log in.
> 
> Any suggestions ? I am happy to send any logs or details that will
> help if you give me an idea what to look for.

Hello,

I remember someone having issues with a USB device not working. The issue was the USB ports and kernel drivers. I think it was a USB device using an XHCI port or something like that. Maybe try an EHCI or OHCI USB port. Which ports do you have? Since the keyboard works fine in the boot menu, then somewhere along the line the kernel drivers and port initialization may be causing issues.

Maybe you can ssh into the machine with the kernel which has no working keyboard input and try to debug that way. Load modules, unload modules, change usb ports for the connected keyboard, and maybe that will help you figure it out. You can also try to login single user mode and see if it works very early, or maybe maintenance mode.

Sincerely,
 
William Harrington