Main > Monitor/Video Forum
DVI or VGA - Best connection from PC to TV
Alaska:
**EDITED 1/21/20*** The answer to the question of if a DVI or VGA connection is best for connecting a PC directly to a TV to produce decent graphics is possibly neither. The solution I am using, as stated below, uses an HDMI output from a Raedon 4350 graphics card into an HDMI to Component converter (Linked in LilShawn's post below) then component to TV connection. NOTE - CRTEmudrivers suggest 5000 or newer cards as 4000 and lower do not support some functionality.
BEST WAY TO GO FOR THIS APPLICATION - Based on a review of some other posts, the best way to connect a PC to a TV is using a VGA into an RGB modded SD TV. I have no use for audio and will only connect this to a PC so SCART is a more complicated alternative. The RBG mod will allow for a better quality image and there are many online walk throughs (mostly for Sony Trinitron TVs) to complete the RGB Mod. If you are new at this - thoroughly read the dangers of working with high voltage TV sets including how to safely discharge ad handle the tube and chassis. I plan to start another post for the RBG Mod I am about to attempt.
**Do not use a DVI to component cable alone as it will not work! The signal needs to be converted. Be sure to buy a converter that delivers the correct resolution to your TV. For me that is 480i - meaning a standard definition "NTSC" TV with an "i" interlaced image where every 60th of a second half the image is displayed. Standard def delivers 640x480 at 4:3 aspect ratio.
ORIGINAL POST from here down:
I am excited to start my second build after a nearly 4-year hiatus. I recovered at 27-inch Sylvania CRT TV 6427FF from a recycling area at the dump along with 2009 Dell desktop computer running Windows 7. Both work great. I dumped an old VisionTek Radeon 4350 graphics card (https://www.amazon.com/gp/product/B002AKKMNI/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) in and now want to find the best way to connect the PC to the TV. In doing some catch up reading on the forum, component input invokes the best resolution on CRT TVs. I purchased a DVI-component adapter (https://www.amazon.com/gp/product/B002HH0VOE/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1 but cannot get a signal on the TV. Just snow and wavy lines... I feel like I am missing something easy here... I tried nearly all resolution settings... Side note I was able to get a signal on my old LCD TV using the cord, but it would disappear and say no signal when I moved a file window onto that monitor screen...
Multi-tiered question here as I want to find the best way to connect the PC to the TV to get a similar resolution as my 25" Wells Gardner monitor that I used for my first build (connected that one with an Arcade VGA from ultimarc).
Am I over complicating things using the DVI output? Is the fix as easy as getting a VGA-component adapter? Should I purchase a different graphics card? Sometimes the easiest fix isn't the best, but I feel like I may be going down a rabbit hole here...
Many thanks and great to be back and active.
lilshawn:
--- Quote ---This cable is intended for use with projectors that use a DVI-I connector for its component (YPbPr) video connection
This cable DOES NOT CONVERT DVI signals to component video or vice versa
It DOES NOT CONVERT digital to analog or vice versa
It functions only with devices that use the DVI-I connector for component video
--- End quote ---
you purchased a cable and you are LITERALLY doing everything it says not to and wonder why it doesn't work?
you need to CONVERT your signal.
https://www.amazon.com/Portta-Component-Converter-Scaler-support/dp/B00JVNUAEI/ref=sr_1_3?keywords=DVI+to+YPBPR&qid=1569608559&s=electronics&sr=1-3
you also need to look at your TV and see if those are actually YPbPr input on the TV. there is a difference between the R/G/B compoNENT connections and R/G/B compoSITE connections. .. typically older TV's had composite.
--- Quote --- similar resolution as my 25" Wells Gardner monitor
--- End quote ---
not gonna happen unless you RGB input mod it.
newmanfamilyvlogs:
https://www.manualslib.com/manual/510730/Sylvania-6427ff.html#manual
This manual says that model should have component inputs on the back, so GroovyMame to the rescue with a VGA->Component breakout cable.
I'm pretty sure a 4350 should work with the CRT Emudrivers.
lilshawn:
480i input only.
Alaska:
--- Quote from: lilshawn on September 27, 2019, 02:29:39 pm ---
--- Quote ---
you need to CONVERT your signal.
https://www.amazon.com/Portta-Component-Converter-Scaler-support/dp/B00JVNUAEI/ref=sr_1_3?keywords=DVI+to+YPBPR&qid=1569608559&s=electronics&sr=1-3
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Good news is that I bought one of those at the same time figuring that I wasn't thinking things through. So, I can try the HDMI output to component conversion and plug it back in.
--- Quote from: newmanfamilyvlogs on September 27, 2019, 04:43:03 pm ---https://www.manualslib.com/manual/510730/Sylvania-6427ff.html#manual
This manual says that model should have component inputs on the back, so GroovyMame to the rescue with a VGA->Component breakout cable.
I'm pretty sure a 4350 should work with the CRT Emudrivers.
--- End quote ---
I used HyperSpin with my first build and love the frontend graphics, wheels, etc. Is GroovyMame able to invoke different more desirable resolutions when compared to HyperSpin? Again, my first build used a more desirable monitor and graphics card for this application. I just want to be sure that I take the right steps moving forward and don't spin my wheels again.
Thanks all!
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