GPU Scaling Blackscreen (Forever?)

[Mammeth]

I recently found out that a game that I wanted to get for the Steam Sale doesn't support a 4:3 type of monitor.

So I turned on the GPU Scaling on the computer (using the AMD Catalyst Software), as someone suggested.
I have an AMD HD 7700, and a cheap 4:3 monitor, as I said.
The monitor went black and stayed like that. I waited few minutes, maybe it would reverse, but no, it just stayed like that. I restarted, it's the same thing, though the boot entries at the start of the computer are there, I can see them, but after that, when it comes to login, it's black.

I need some help, please x_x Did I screw it up forever? Is there an easy way to solve it?

Thank you!

 

[rgd1101]

go to safe mode, see if you can change the resolution, or you might need to uninstall and reinstall the driver.

 

[charanjit1998]

I got a same problem like yours when i tested the custom clocks on my old c2d pc with the hd 5450. I couldnt possibly do anything but only format the hard drive and install the os again.

 

[Mammeth]

Thanks for the quick answer! I went in safemode and, apparently, I could open AMDCatalyst software. I just turned the GPU scaling off, restarted, and now works. Thank you so so much!