Same bug appears on my Lenovo M58p desktop with Ubuntu 16.04.5 LTS kernel 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Same bug appears on my Lenovo M58p desktop with Ubuntu 16.04.5 LTS kernel 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux