Main > Monitor/Video Forum
DVI or VGA - Best connection from PC to TV
Alaska:
I connected HDMI to HD converter HDMI input. Then connected component output to TV... the display does not show. I have changed resolutions, restarted, etc... what am I missing here?
Alaska:
I am guessing that the output resolution for the component cable isn't 480i and is upscaled... I'll try the one @lilshawn posted and update later
newmanfamilyvlogs:
GroovyMame is a build that, along with the CRTEmudrivers package, dynamically generates different resolutions for each game, OR in the case of a limited 480i display such as what you have there, attempts to tweak the signal to get a close approximation of the original games resolution on whatever target display is available. If your monitor has VGA output, you'll be directly driving the component inputs of the television with an appropriate breakout cable.
Once you've set up the proper display modes with CRTEmudrivers, you can run Hyperspin, which will launch the Groovymame build (which then does any video mode tweaking).
GroovyMame has its own dedicated subforum:
http://newforum.arcadecontrols.com/index.php/board,52.0.html
It's absolutely worth the effort of learning how it works.
lilshawn:
there are 2 types of converters... ones that change the video connector type (VGA to DVI...HDMI to DVI etc.) typically these signals are similar enough or there is support in them for the other signal types, so simply a conversion of the connector is necessary.
the other changes the video signal itself. (VGA to composite... HDMI to component... VGA to HDMI etc) these are signals that are completely different and need to be scaled up/down or from analog to digital or digital to analog.
your TV will only accept 480i signal. you need to either feed it a 480i signal or if you are not able to supply a 480i signal...use a converter to change your signal whatever it may be up or down to match 480i these are commonly called scalers.
i can see here, you are using a computer for your video out. you need to tell your computer to output the proper signal, in this case....480i.
you also need to realize that there is a difference between setting your computer for 640x480 and out putting 480i... the video signal from the computer at 640x480 is a progressive scan. (480p) meaning an entire frame is sent at a time. your TV is 480i meaning you get an entire screens worth of even lines video in one frame and an entire screens worth of odd lines video in the next.
Alaska:
I think the main issue is that I cannot select a 480i signal from my graphics card through the display settings or AMD catalyst control center. I can select 640x480 but the output signal still doesn't jive with the what the TV needs as an input. The converter that @lilshawn posted has a resolution button on the back that states it can toggle, "YPbPr Video Output Format : 480i/576i/480p/576p/720p/1080i/1080P." That should be the solution that I need to get a picture.
My original build was using Windows XP SP3 and I'll be using Windows 7 this go around. There are some updates that I will need to do to get everything working, and will start reading up on CRTEmudrivers & Groovy Mame. It sounds like HyperSpin will work as a frontend, and GroovyMame will be used as a MAME emulator.
I am building this cab from the ground up and am pretty excited to get back at it. Thanks for the help all! I'll update here when I get the video working.