This is a bug in 3.13.0-155; I've got no problems when I reboot to Linux dtm2573lapli 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14 08:52:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
This is a bug in 3.13.0-155; I've got no problems when I reboot to
Linux dtm2573lapli 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14 08:52:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux