Im running Ubuntu 13.04. I want to access my boot menu consists of just holding down the esc key during reboot. Problem is.....my keyboard doesnt activate until ubuntu is almost booted completely. In other words I can push any key I want and my computer doesnt know it because the keyboard isnt on. I put in a boot disk and all it does produce a another keyboard request..."Hit any key to run from CD".
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Welcome to Ask Ubuntu! We need more hardware information to help you, can you look at [this question](http://askubuntu.com/questions/14008/i-have-a-hardware-detection-problem-what-logs-do-i-need-to-look-into) and then edit your question adding the information. – Danatela Oct 18 '13 at 03:52
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Had a similar problem which I've documented here: Can't access keyboard in boot menu after update to Ubuntu 14.0.1, laptop keyboard, trackpad, network not working As you can read from the title I had some other troubles as well. The get to the GRUB menu I read up on grub and deactivated the ACPI system thusly:
edited grub configuration:
gksudo gedit /etc/default/grub
and changed this variable:
GRUB_CMDLINE_LINUX_DEFAULT="quit splash acpi=ht"
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This will only change the kernel line, but Grub fails to recognise the keyboard before the kernel is booted. – David Foerster Sep 27 '14 at 15:47