Help troubleshooting my attempts to pass PC VGA into my Framemeister...

Jibbajaba

Giga Shock!!
I am trying to capture VGA footage from my DOS PC for use on my YT channel. I bought a "Kenzei" box from Behar Bros, which takes VGA in, combines the sync, and sends normal scart RGB (or component or composite) out. It was originally designed for use with a Dreamcast VGA box. I can use it with a Dreamcast just fine, passing the signal to my Framemeister. But when I hook my DOS PC up to the same box, I get nothing. I thought it wouldn't make a difference, because both VGA signals should be 31khz 640x480. The Framemeister does not acknowledge an input when I hook up the PC. I tried bypassing the Framemeister and hooking the Kenzei straight to my TV using the component outputs, and I still get nothing, which would obviously suggest that the Kenzei doesn't like the signal coming from my computer, but again I don't understand how it is any different than the signal coming out of a DC VGA box. Help?

I know about the XPC-4, but it does not output HDMI. The only other thing I can think to try (other than just using the s-video out on my DOS PC's video card) is to just buy one of those VGA -> HDMI converters, but they all seem like cheap chinese shit.
 

Xian Xi

JammaNationX,
You made sure your screen resolution was 640 X 480 on the PC?

I use a HDMI standalone capture device that saves in 2gb chunks to a USB flash drive. I used it with a VGA to HDMI converter and it worked great. You should try it out if this setup isn't working for you. I have a sample video or two on my YouTube channel of the capture quality. The VGA to HDMI converter was a small white one and was only $15. It only converts the signal to HDMI, not upscale. So 640 X 480 would just convert to 480p HDMI.
 

Jibbajaba

Giga Shock!!
You made sure your screen resolution was 640 X 480 on the PC?

I use a HDMI standalone capture device that saves in 2gb chunks to a USB flash drive. I used it with a VGA to HDMI converter and it worked great. You should try it out if this setup isn't working for you. I have a sample video or two on my YouTube channel of the capture quality. The VGA to HDMI converter was a small white one and was only $15. It only converts the signal to HDMI, not upscale. So 640 X 480 would just convert to 480p HDMI.

Well, it's just DOS. How would I check the resolution? If I can get the VGA into 480p HDMI, then my Elgato should be able to record it just fine. I am looking at your YT channel right now, but am not sure which videos you are referring to. Thanks for the response!!
 

Kid Panda

The Chinese Kid
What kind of video card do you have? Are we talking like a real pure dos machine? My old speedstar64 ISA video card couldn't display at 640x480, so everything that came out was 320 x 240/220/etc. if your vid card is newer then there shouldn't be any issue with it pushing a 480 display out.
 

DNSDies

I LOVE HILLARY CLINTON!
MSDOS is not always 640x480.
720x400 is the standard default on many video cards.

There are some TSR drivers you can load to set a default resolution, but you may run into this problem again once you start playing games, as some games have odd resolutions.

For example, older Sierra SCI games use 320ラ200.

Some monitors will show your current resolution in their OSD Menus.

Here's some useful DOS utilities:
http://www.filegate.net/utiln/utilnet/
vmode11.zip will probably help you the most right now.
 
Last edited:

aha2940

AH, A, COLUMBIAN!,
Well, it's just DOS. How would I check the resolution? If I can get the VGA into 480p HDMI, then my Elgato should be able to record it just fine. I am looking at your YT channel right now, but am not sure which videos you are referring to. Thanks for the response!!

If it's just DOS and you have not installed any video card drivers, then DOS is using the default resolution of your video card, which may (or may not) be standard VGA (640 x 480). Which card are you using? can you plug a standard monitor and check in its menu the real resolution?

Regards.
 

GohanX

Hollywood Hulk Gohan
The Kenzei doesn't output Component, btw. The RCA jacks are just another RGBS output. All the Kenzei does is combine the sync signals, it doesn't do any transcoding.

If you are using the Kenzei by itself, make sure you are using an external power adapter and the power switch is set appropriately. I'm not sure if a PC video card outputs a power signal through the VGA output, and if it does it may not be enough.
 
Last edited:

Jibbajaba

Giga Shock!!
The card is an ATI Rage 3D II. PCI. I bought it because it has s-video out, but would prefer to record RGB if possible. Although as DNSDies pointed out, some games run at lower resolutions, so maybe s-video is the best I can hope for without having more headaches.

Yes, it is a real pure DOS machine. P90 I think, running DOS 6.22.

I am using an external power brick for the Kenzei. As I said, it works fine with a Dreamcast, so there is something about the signal coming from my PC that it doesn't care for. Didn't know that the RCA jacks are still RGB and not component, so that makes sense. So is the yellow jack next to them just the sync line, then?

Plugging it into a monitor and checking the resolution is a great idea.
 

Jibbajaba

Giga Shock!!
I tried hooking the s-video out on my video card directly to the Elgato. Still doesn't really work because every time the resolution switches, the signal cuts out. This is going to be a real bitch to figure out.

In case anyone is curious, I am trying to capture a bunch of old Gravis Ultrasound demos. Example:


The dude that made this video used some kind of crazy $1,000 capture card, tho.

Edit: Thanks Greedo, but that's for Windows.
 
Last edited:

Jibbajaba

Giga Shock!!
Jibba,

You might try reading this thread:
http://www.vogons.org/viewtopic.php?f=5&t=33392&start=0

Using VLC or Media Player Classic to view the video stream from a capture device might make it work, although at some delay. It's worth trying, and doesn't cost anything except your time.

Yeah, I've been poking around on the Vogons site. They actually have a whole mega-thread dedicated to VGA capture, and the takeaway message I got was that it isn't easy, and it isn't cheap. I already sunk about $400 into a framemeister and an Elgato for capturing console stuff, and it looks like I would have to buy more stuff to capture DOS VGA, and it may or may not work that well. That Avermedia card looks neat, but I would have to build a PC in order to use it, which of course drives the cost WAY up. The s-video solution might not give me the highest-quality video, but it won't care about things like on-the-fly resolution changes.

Edit: If it were just DOS game footage, I wouldn't really mind using DOSBox. But I've tried running these GUS demos in DOSBox and they're glitchy.

Might wanna hit up LGR on YouTube. He does alot of DOS videos and may have a solution for you.

Yeah, I reached out to him but haven't heard back. People on Vogons seem to think that he's using DOSBox, though.
 
Last edited:
Top