I am seeing the same problem but I'm using a Dell D520. I did find that in changing the option to Do Nothing it works as it should when Blank Screen is selected. It may be that the OS and hardware are fighting over control.
I am seeing the same problem but I'm using a Dell D520. I did find that in changing the option to Do Nothing it works as it should when Blank Screen is selected. It may be that the OS and hardware are fighting over control.