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[Bug 555169] Re: Keyboard and mouse freeze after grub

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: jhansonxi <jhansonxi@xxxxxxxxx>
Date: Wed, 21 Apr 2010 22:43:44 -0000
Reply-to: Bug 555169 <555169@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

The keyboard finally decided to function one day in recovery mode.  I
was able to produce a diff of dmesg when it worked as compared to when
it didn't.  The primary difference was the error:

i8042.c: Can't read CTR while initializing i8042.

Normal result is:
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12

The error message points to a recurring problem with the kernel (many
years according to Google search results) and this device that affects
keyboards and pointers.  The error message is also associated with USB
storage device problems.  The only workaround I've found so far is
adding "acpi=off" to the kernel line in Grub.  While this works it
prevents the laptop from shutting itself off and pressing the power
button shuts the power off instantly without an orderly shutdown.

-- 
Keyboard and mouse freeze after grub
https://bugs.launchpad.net/bugs/555169
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