uname -a
Linux danato-Lenovo-G780 3.13.0-031300rc1-generic #201311221535 SMP Fri Nov 22 20:36:51 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
it also fixes the issue, I booted up with the maximum brightness
uname -a
Linux danato-Lenovo-G780 3.13.0- 031300rc1- generic #201311221535 SMP Fri Nov 22 20:36:51 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
it also fixes the issue, I booted up with the maximum brightness