Asus ROG 17 with US kb.

The boot process gets to the luks password prompt but the laptop keyboard is non-functional. If I connect a separate USB keyboard, it is recognized and I can enter the password and boot into Slackware. Once booted, the laptop keyboard is fully functional.

I'm guess I lack the correct module when making my initrd.

The one generated by mkinitrd_command is:

I've seen other threads about this, but solved by either (a) using the default mkinitrd_command script output, or (b) using hid_generic. In this case, I'm using the exact output of the script and it appears to already contain the generic module.

Any thoughts on what module I can add to get this keyboard going?

If you have the opportunity to run Linux on that computer (for instance, using a Live CD) you should check the output of "lsmod" and try to determine what specific modules are being loaded there that are not present in the output of the "mkinitrd_command_generator.sh" script. Perhaps the script was unable to detect a custom keyboard, it happens sometimes. When you find keyboard, hid or usb related drivers that you would require in your initrd, you can add them manually to the above mkinitrd commandline and thus create a working initrd with keyboard support for your laptop type.

If all else fails, you might also want to check your bios/firmware settings. Some of them have a "Legacy Keyboard" setting that will make the keyboard show up as a PC/AT device.

Yessir, success.

Found in lsmod a module called hid-asus. Added that to the output string of the mkinitrd_command_generator.sh script. On reboot the internal keyboard was functional for the luks prompt.

Thank you for the guidance.