Could you not just do dvi to component?
Hi, I've looked around the internet for the answer to my question but have had no confirmation that is works.
What I'm trying to do is use a DVI to VGA adapter (because I have a Radeon HD 4870 graphics card with two DVI plugins but no VGA) then use a VGA to component cable. (because my tv doesn't have a hdmi input only a component)
Will this work? other people have said that it might not work because the signal is digital from the computer and it would still be digital going through the VGA cable, but no one confimed
I don't think that right because isn't VGA NOT digital.
Anyways, ANY help would be very much appreciated.
it does say you have to check the video card as it may not give out the correct output.
Please note, if using this cable with a computer video card, not all PC video cards will output component video, please check the spec of the video card.
So DVI to VGA adapters are normally just passive patches to take those analogue pins out onto a normally 15pin VGA cable. So you're quite correct in thinking that the signal will be analogue VGA.
And just for geeky reference whilst in this general subject matter, strictly component signals are analogue and you'll see them referred to as YPbPr or YUV, when we're talking digital component strictly it should be described as YCbCr.
ATI Radeon? HD 4870 Graphics Specifications
As per the above link see below
It states about a single and dual dvi so if it does not work on one of the DVI ports, swap them around and try the TV on the other DVI port - also might be worth while checking the advanced settings for the ATI card as you might be able to define what is connected to the port and possibly if its vga or whatever
- Two integrated dual-link DVI display outputs
- Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)2
- Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3
- Two integrated 400 MHz 30-bit RAMDACs
- Each supports analog displays connected by VGA at all resolutions up to 2048x15362
- DisplayPort output support
- 24- and 30-bit displays at all resolutions up to 2560x16002
- HDMI output support
- All display resolutions up to 1920x10802
- Integrated HD audio controller with support for stereo and multi-channel (up to 7.1) audio formats, including AC-3, AAC, DTS, DTS-HD & Dolby True-HD4, enabling a plug-and-play audio solution over HDMI
- Integrated AMD Xilleon™ HDTV encoder
- Provides high quality analog TV output (component/S-video/composite)
- Supports SDTV and HDTV resolutions
- Underscan and overscan compensation
- Seamless integration of pixel shaders with video in real time
- VGA mode support on all display outputs
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