My ps3 is hooked up and everything it comes on but it won't come up on my tv screen, BUT EVERYTHING IS HOOKED UP, The hdmi cable is plugged in to

You might be better served to post this in the computer area as it seems like a mismatch of some sort exists---I have heard the dell issues before.

Are you using hdmi cable? I would try different hdmi input or try different cable if you have one. If still using a/v cable make sure the white and red audio cable are plugged to the same input as your video. If that doesn't work you can try resetting the video on your ps3 by holding the power button until you get the 2 beeps.

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Try using RGB cables and unplug the HDMI cable from the PS3, then while the PS3 is off, hold down the power button/sensor on the PS3 untill you hear a beep or a few beeps. This will force the PS3 to automatically detect the TV/cable resolution settings. Hope this works.

Hook it up with the component cable and then hold the power button on the console until something comes up on screen. Make sure you have selected the component input on your tv or else you wont get anything anyway.

What holding the power button does is it resets the video settings to the lowest common denominator and then you can reconfigure it for the optimal picture quality of the component cables.

If that doesn't work double check the component connections on the back of the TV and just make sure they are where they should be and that no accidents were made while hooking it up.

Please post the results from these steps here so that I know what happened.

make sure video cable is plugged in all the way on back of ps3. the a/v cable is little tricky. it looks like its plugged all the way but its not. also if doesnt work, if u have hdmi cable use it then go to display settings, then connetions. set it up as av cable connection then it will ask about audio - av rca connetions. and save. now its set up as av cables and then when u use hdmi it will automatically set up hdmi.

ok i have come acrost this problem with my ps3
turn the ps3 off plug all the cables in right and put the tv on the right video input now hold down the power button on the ps3 for about 30 - 60 secs or untill it beeps or you see it working 
let me know if it works
PLEASE RATE thanks

Everybody is having problems with sony products and HDMI cables. It's on a lot of forums. So, your not alone.
Most of the solutions are:
1. Unplug your TV for 30 mins.
2. Plug TV back in and put it on HDMI for PS3.
3. Hold down the power button for 10secs on the PS3
That should solve the problem.

Help with hooking PS3 to a Denon Receiver. It worked before, but I had to move everything to a different location and when I hooked it back up the PS3 has sound but no picture. I have it hooked directly to the receiver with and HDMI cable (the receiver is hooked up to our cable box which is directly hooked to the tv via HDMI cable).

when the ps3 is in standby hold down the power button for over 4 seconds, it runs the optimal screen settings page. hope this helps