Comment 50 for bug 555169
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| jhansonxi (jhansonxi) wrote Re: Keyboard and mouse freeze after grub | #50 |
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a60fb26
(Get the code!)
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.