Comment 76 for bug 578506

I was experiencing the same problem with Ubuntu 12.10, in a DELL PRECISION M6700.

Just followed Luca's nice intructions:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/578506/comments/54

( Thanks Luca ! )

but with

a) using 3.5.7 as the kernel version
b) this patch https://bugzilla.kernel.org/attachment.cgi?id=25261
c) not adding vesafb and fbcon to /etc/initramfs-tools/modules

The message:

"ACPI: EC: input buffer is not empty, aborting transaction"

I now gone, when I boot,
and things seems to be stable so far.