For my computer monitor I have a Benq HD2040 (I'm pretty sure), anyway this particular model also has HDMI ports, so I hooked up my PS3. First time I played, it was brilliant (my monitor is actually bigger than the family TV). However now my PS3 is having issues with the video output (Turn it on, blackscreen, no sound) Now I know what's causing this, it's that the output video settings on the ps3 are set to the normal tv ones, not HDMI. Now I can actually change them if I hook up my ps3 to my TV and change em that way. Except when I then hook up my PS3 to my monitor, they've changed back, and black screen. Any ideas?

Hold the power button down until it beeps.  It should then automatically set itself to the proper video settings.

" Hold the power button down until it beeps.  It should then automatically set itself to the proper video settings. "

" @Andorski said:

" Hold the power button down until it beeps.  It should then automatically set itself to the proper video settings. "

Tried it (several times), didn't work. "

" @DCFGS3 said:

" @Andorski said:

" Hold the power button down until it beeps.  It should then automatically set itself to the proper video settings. "

Tried it (several times), didn't work. "

How many times did it beep for you?  "

I remember doing something similar, try this?
 
Hook it up to the normal TV. Turn on the PS3 and change it to HDMI settings. Your TV will go black, in that 30 second window it has going to reset itself, quickly switch the cables round onto the HDMI and monitor and you should see it.

.... by the way ....

" @DCFGS3: hmm, and you're saying that when you connect it to the HDMI on the TV then it works just fine. Maybe the problem is with your screen. I mean there's no reason why it wouldn't work. You say it used to work but then it just stopped one day?   "

" @DCFGS3: If you know someone with an HD TV then you can try setting it there.   btw, what are you doing for sound?  "