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[SOLVED] Keyboard does not work at boot on an AMD APU system
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theMerge
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PostPosted: Wed Feb 01, 2012 10:29 pm    Post subject: [SOLVED] Keyboard does not work at boot on an AMD APU system Reply with quote

So here's a fun one for you. When I boot about 1/2 to 1/3 of the time my keyboard does not work. Here are the conditions:

  • Grub allows the keyboard to work
  • Once load starts, I can at times hit keys and see the characters echo back, other times they do not.
  • If the characters do not echo back, then my keyboard, mouse, and even power buttons do not work in either X or command line.

Interestingly enough, this isn't a "Gentoo" problem, as every distro I've tried does the same thing. Obviously doing a hard shutdown (press and hold the power button) 2-3 times until I get the keyboard working isn't a solution. So here's what I need.

  • What can I do to ensure my keyboard is detected consistently.
  • If that can't be done, what I can do to provide good debug information about the problem.

Thanks
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Last edited by theMerge on Fri Feb 03, 2012 2:27 am; edited 1 time in total
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NeddySeagoon
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PostPosted: Wed Feb 01, 2012 10:54 pm    Post subject: Reply with quote

theMerge,

USB or PS/2 Keyboard ?

Post your lspci output and your kernel .config file.
The .config file will need to go to a pastebin as its too big to fit in a post.
Oh - your dmesg may be useful too - again that needs to be on a pastebin.
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gorkypl
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PostPosted: Thu Feb 02, 2012 12:07 am    Post subject: Re: Keyboard does not work at boot on an AMD APU system Reply with quote

theMerge wrote:

Interestingly enough, this isn't a "Gentoo" problem, as every distro I've tried does the same thing. Obviously doing a hard shutdown (press and hold the power button) 2-3 times until I get the keyboard working isn't a solution

Looks like a BIOS/hardware problem TBH.
Output of dmesg (or relevant part of /var/log/messages) from the case when keyboard is not detected would be a good starting point.
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theMerge
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PostPosted: Thu Feb 02, 2012 12:11 am    Post subject: Reply with quote

Here they are
http://onecausechurch.com/gentoologs/lspci.log
http://onecausechurch.com/gentoologs/lsusb.log
http://onecausechurch.com/gentoologs/dmesg.log
http://onecausechurch.com/gentoologs/kconfig.log
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theMerge
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PostPosted: Thu Feb 02, 2012 3:29 am    Post subject: Reply with quote

NeddySeagoon wrote:

USB or PS/2 Keyboard ?

Laptop on a Toshiba L775D
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Ion Silverbolt
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PostPosted: Thu Feb 02, 2012 5:58 pm    Post subject: Reply with quote

Try adding this to your grub.conf:

i8042.nomux=1 i8042.reset

Example:
Code:
kernel /boot/kernel-3.2.1-gentoo root=/dev/sda3 i8042.nomux=1 i8042.reset


You can hit the "e" key at grub boot and add it manually to test it.
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theMerge
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PostPosted: Fri Feb 03, 2012 2:27 am    Post subject: Woot Reply with quote

Ion Silverbolt, I could kiss you. I no longer need to boot into windows all the time. I've done several consecutive boots and it appears things are good. I'll marked solved.
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