Try a different port on your TV. Try a different HDMI cable. If neither of those fixes the problems then it's most likely your PS3 :-(

Try powering the PS3 off completely, wait a few minutes, then power it back on.

If that still doesn't resolve your problem then it really is your PS3 :-(

You gotta put the vga back in WITH the HDMI and change the settings so it recognizes the HDMI then you can take the vga out again.

Ur screwed m8