I have a HP presario laptop with Svideo out. When i connect it to my tv (old sony widescreen crt) I can see the winxp boot screen just fine but once windows boots the picture just turns in fuzz (diagonal scrolling lines). It doesn't matter what resoloution I set the output to it doesn't give me anything viewable but like i said the winxp boot screen looks fine. Any ideas?
most it not all s-video output only support max resolution of 1024x768. So you'll need to make sure that the resolution is at 1024x768 or 800x600. Some video chips allow you to dynamically attach the connection to tv while PC is powered. Some tvs needthe connection to be active first then it (tv) will be able to establish the signal. Your mileage may differ from other. Best check the manual.
Also what is the exact model? you car check at HP's support website.
I have checked the manual and the website and the only suggestions I have read is changing the resoloution and I have tried every resoloution available. Its not like I cant any picture via the svideo out because like I said the winxp boot screen looks fine it just once windows opens it all turns to fuzz. I will try it with another tv and see if I get any joy.
Sometimes you also have to make sure your VGA monitor is disconnected and TV connected before power up or else the Video Card redirects its output to the VGA port only.
And as Chiefie says:
1) Make sure your resolution is set to 800x600 or 1024x768 2) Make sure the Frame Rate (Refresh) is set to 50Hz or 60Hz
We have tried this some time ago with the S-Video output on an Nvidia 4200 (I think it was) and it worked fine.
P.S. Sometimes on a laptop, there is a special key to switch the video output from LCD to external ports e.g. on my Acer it is Fn + F5 keys pressed together. Hopefully your manual should tell you if this is the case. Also, it is possible that this function is controlled from BIOS setup (press DEL while booting up to enter setup).
I have compaq presario v6001au. The only advice on the HP website is to hit FN4 to activate the external display which when I do so all I get is abunch of (for the want of a better description) fuzz on my tv and no amount of adjusting the screen resoloutions for the "tv" out gives me a viewable picture although the fuzz changes. But when I reboot the windows shutdown and boot screens come up fine.