I can't reproduce this issue anymore after installing the latest Kernel 3.9.2.
$ uname -a Linux acer-tm8471 3.9.2-030902-generic #201305111035 SMP Sat May 11 14:36:04 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
I can't reproduce this issue anymore after installing the latest Kernel 3.9.2.
$ uname -a generic #201305111035 SMP Sat May 11 14:36:04 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Linux acer-tm8471 3.9.2-030902-