I have a Vista machine that used to be hooked up to a widescreen monitor, I moved and no longer have the monitor and planned to just hook it up to my widescreen TV's VGA input jack. I can see the initial DOS-type boot screen, and see the "Windows is about to boot" screen, but everything goes black and my TV displays an "unsupported video signal" message right before it would normally show me the Vista circle logo and have me select a user to log in with.
If I boot to safe mode I can get into Vista, and can set the resolution from the safe mode 600 X 800 to a higher res and see everything fine, but no matter what settings I change in safe mode I cannot get the regular boot to honor them.
I don't have the old monitor, or another monitor, to hook up to and change the resolution that way, but if I absolutely have to I can probably manage to get to another monitor. It seems that is the obvious fix.
But does anyone know how to get a safe mode change to stick? Or know the keystrokes I could enter blind to get from Vista user log in to resolution change screen? Or any other back door way to change this setting?