I'm helping a friend of mine who has set his monitors aspect ratio too high for the display. What he gets is a message on the monitor informing him of this and no display. Because he has no display he cannot reset the ratio to a lower setting. I've never ran into this kind of a problem before so I'm hoping someone here can tell me how to remove the old setting.
The computer is an Dell Inspiron 660 desktop, with a Dell monitor.
Here's what I've tried so far: Booting to safe mode-no go, cannot get into safe mode(Windows 8.1 thing), was able to hit F12 on boot and run a diagnostic-nothing wrong with hardware, but no way to get to safe mode.
I've hooked the computer to another monitor, ran fine, but only sees the display it's hooked to. So there's no way to change the ratio for the Dell monitor.
I'm hoping someone can tell me how to remove the setting from the registry so Windows can set a new setting on boot.
Thanks in advance.