need help with tv

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Joined: 27 Sep 2009
need help with tv

So I have an older rear projection HDTV... I have the DVI out of my video card going into a little converter to yprpb connection to the back of my tv. I set my computer resolution in powerstrip to 640x480..and turn my pc on and see the bios and everything load.. and then the windows xp loading screen comes on.. but then I get a blank screen and windows never loads.. but i can start up in safe mode perfectly fine. anyone have any advice i've been trying to google the answer but havnt found anything that works. thanks!

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Joined: 12 Aug 2007

I'd get a cheap card with component out and run the component cables into your TV.  There's no telling what the converter box you're using is doing.  Why power strip?  You should just be able to set the resolution to 640 x 480 in the regular settings and it should be fine.

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Joined: 3 Oct 2006

Was there a VGA connection on the TV? Is this a HD TV? IF not maybe you can get a video card that has SVideo.

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Joined: 21 Apr 2008

htpc_user wrote:

I'd get a cheap card with component out and run the component cables into your TV.  There's no telling what the converter box you're using is doing.  Why power strip?  You should just be able to set the resolution to 640 x 480 in the regular settings and it should be fine.

I second this.  I have a cheapie ATI Radeon 2400Pro video card feeding an old 27" analog Sony CRT television.  It took some ninja skills to get the SVideo output working correctly on it (I couldn't get the component out working unfortunately)... but as it stands now, I have a 1024x768 resolution screen outputting via Svideo (which of course the video card scales it down to Svideo resolution)... but it looks very sharp.  All this is in Windows 7 by the way.  Windows Vista and 7 don't like resolutions below 800x600.  It's tough to force them to stay there.  You can do it in Safe mode or "VGA Mode"... but that doesn't help when you want to boot normally.

I can't remember if XP has that 800x600 minimum resolution issue as well.

It was a wild dance between booting in VGA mode with a real external monitor and the Svideo and booting normally before I got it working correctly.  But you definitely need a real video card with a component/Svideo output to get the timings tweaked correctly.

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Joined: 27 Sep 2009

Well I just got something like this

http://cgi.ebay.com/For-HDTV-Component-Video-Adapter-DVI-to-YPrPb-NEW-Go...

I don't really want to run anohter video card when I have a really nice one in it already.. ATI Radeon X800 Pro

yes it does have s-video but I've heard the quality with s-video is shit compared to using the dvi-yprpb setup i have now. I just dont get why i see everything up  until after the loading screen for xp is finished.. it has to be some kind of setting or something..

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Joined: 3 Oct 2006

Did it come with a guide for the DIP switches? Also do you have to displays? You say windows doesn't load but are you saying that because you don't see it? My guess is it is loading you just can't see it and you need to hook the pc to a display where you can change the display settings to one the TV can handle like 480I. Then reboot with that resolution with the tv connected to the adapter. If you have SVIdeo out try running the tv off of that along with a regular monitor connected.

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Joined: 27 Sep 2009

Yeah I mean I figured it is some kind of resolution setting because like i said it loads in safe mode and video output seems to stop right after the loading screen (when XP's settings take effect). I plugged it into my crt monitor and changed the resolution to 640x480 (which im assuming SHOULD work on a tv)..but still not luck.

Also, there was no guide for the DIP switches but i could probably find one.

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Joined: 15 Mar 2007

an x800 pro isn't nice anymore.  It lacks all image enhancement functions of recent years.  It was pre-avivo.  Not that you really need avivo for outputting 480p, but still.  If it's working under bois then it has to be something in powerstrip or your drivers.  Try everything you can with stock drivers before you start messing with powerstrip.

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Joined: 12 Aug 2007

My other question is that if you do have an HDTV, why not output at 1080i?  I know you're having trouble now just getting a picture, but you might want to consider it.

I agree with Meester.Rip; you probably need to boot with a monitor connected and follow his instructions on getting it changed over.

I also agree with autoboy.  Get you a cheap 3450, or something.  I use a 2600xt which works well (and I use it with component).  You could probably find one cheap somewhere.

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Joined: 21 Apr 2008

I can vouch for the OP in getting component setup for a TV that only has component inputs (even an HDTV) can be a pain.  My CRT based HDTV (not the one mentioned in my previous post) only has component inputs and will only accept a 480p or a 1080i timing.  In ATI's CCC the menu for activating 1080i output will not fit in a 480p screen.  It extends below the taskbar.

And I haven't been able to activate those "scrolling" video resolutions in Vista or Windows 7 like XP used to do.  What I mean by scrolling is that you could setup a 800x600 resolution but use a 480p timing... which would cause windows to display only a "window" of the full 800x600 resolution, and if you moved the mouse cursor off the screen, the whole display would scroll to show the rest.  That may have been more of a function of the driver though... and that was back when I was using a radeon 8500.

Your best bet is to hook up a real monitor and set the screen resolution to 640x480 (or 720x480)... make sure the component adaptor is enabled in the Catalyst with the proper timings that your TV accepts.  Then shutdown, disconnect the monitor, and only have the component adaptor and TV hooked up.  It should boot into the 480p resolution you specified.

You may have to select the 640x480p resolution from the advanced properties for the display properties.  When you are in the Display Properties screen, where you can select the resolution, you need to click on the Advanced button.  Then on the Monitor tab, uncheck the option to "Hide modes that this monitor can't display".  And then on the Adaptor tab click on the "List all modes" button and pick the 480p resolution you desire.

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Joined: 9 Oct 2006

sharvs wrote:

Yeah I mean I figured it is some kind of resolution setting because like i said it loads in safe mode and video output seems to stop right after the loading screen (when XP's settings take effect). I plugged it into my crt monitor and changed the resolution to 640x480 (which im assuming SHOULD work on a tv)..but still not luck.

Also, there was no guide for the DIP switches but i could probably find one.

One other thing you could try is hit F8 right after the BIOS handoff to the OS and select "Enable VGA Mode" or whatever it says.  Don't know if it'll work or not but it might help.

HTPC addict

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