Same issue, model ASUS N56VB, Ubuntu 13.04 64 bits
kernel 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:17:05 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Updated with the newest Bios version available.
Bough 1 week ago, today I booted and I had this problem.
Same issue, model ASUS N56VB, Ubuntu 13.04 64 bits
kernel 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:17:05 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Updated with the newest Bios version available.
Bough 1 week ago, today I booted and I had this problem.