I have the same problem. Also when I boot with acpi=off my touchpad and wifi do not work.
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/774005 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/774671
I have the same problem. Also when I boot with acpi=off my touchpad and wifi do not work.
https:/ /bugs.launchpad .net/ubuntu/ +source/ xserver- xorg-input- synaptics/ +bug/774005 /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/774671
https:/