A week ago I upgraded to kernel 3.5.0-41-generic and have not had any problems since. This means I cannot identify with which exact kernel version the problem was introduced, but it seems fixed in recent kernels. Thanks for your support so far, I will report here if I encounter a problem with this again.
A week ago I upgraded to kernel 3.5.0-41-generic and have not had any problems since. This means I cannot identify with which exact kernel version the problem was introduced, but it seems fixed in recent kernels. Thanks for your support so far, I will report here if I encounter a problem with this again.