Addition: neither #42 nor #58 doesn't help. The problem persists in 19.10 too.
This laptop had the same issue in Win10. I reinstalled it from Microsoft's ISO (to exclude potential bugs in Dell soft) and problem was gone.
Addition: neither #42 nor #58 doesn't help. The problem persists in 19.10 too.
This laptop had the same issue in Win10. I reinstalled it from Microsoft's ISO (to exclude potential bugs in Dell soft) and problem was gone.