I fixed my problem with adding 'blacklist acer-wmi' in the /etc/modprobe.d/blacklist.conf file. If it works your bug may be a duplicate or a new use case of the acer-wmi regression bug: https://bugs.launchpad.net/ubuntu/natty/+source/linux/+bug/710738
I fixed my problem with adding 'blacklist acer-wmi' in the /etc/modprobe. d/blacklist. conf file. /bugs.launchpad .net/ubuntu/ natty/+ source/ linux/+ bug/710738
If it works your bug may be a duplicate or a new use case of the acer-wmi regression bug: https:/