Software Support > GroovyMAME

Clone output / two screens at once?

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Nephasth:
I've got two 19" Wells Gardner arcade monitors displaying the same image for my Two-Headed Beast project. I'm using an ArcadeVGA card with a ~$2 VGA splitter cable (like this) to send the signal to both monitors. Works great!

Paradroid:
Hmm. For that measly price I might just give it a go. Only a few bucks at stake. ;) Thanks!

blagger:
I have a cheap  ATI 9600 card with dual VGA output and two scart CRT connected.
I am running the soft15 patch and I have an excellent picture on both outputs using clone mode.
I would be very interested if you can run the clone mode with Calamity's drivers.

Paradroid:
Again, good to hear another success story! :)

As well as a VGA splitter, I ordered an ATI X1300 card with dual VGA output. The seller is in the same city as me so hopefully it'll get to me quickly and I can get stuck into this.

I'm really interested to see two CRTs running an identical picture side-by-side for testing purposes. I think that will be the best way to confidently determine differences in image quality.

Paradroid:
Well, this took me a while but I can finally report back on my experience!

I bought a dual output ATI X1300 a while ago that came with a twin VGA cable. This caused me a fair bit of grief as it took me an age to get the drivers to install correctly. Then, after about an hour of work, it didn't want to show many of the modes I fed it. I'm assuming that this particular card had issues with low dotclocks? Either way, very frustrating.

A while after that the VGA splitter I ordered from China arrived. This cost me a couple bucks and it looked nice enough... but I couldn't even get a single display to work with this cable let alone 2. :(

Tonight, as I was getting ready to wind down I remembered I hadn't checked the letter box. I went down the drive a found a package waiting for me! Ripped it open and it was a dual output X300 that I bought on eBay recently. A low profile model so I had to take the bracket off to stick it in my desktop.

Fired it up, re-installed the 9.3 drivers. Then, I lugged another TV into my room and hooked everything. Opened up CCC and chose "Clone desktop 1". Turned both screens on... BINGO! It worked! :o

I have to say, this looks really cool in action! Something about seeing multiple screens with simultaneous moving images... mesmerizing.

This has got to be the ultimate way to compare monitors: it's so easy to spot the differences in quality when they're running side-by-side. If I got the screens level on the same workbench it would be even easier. Already I could sense that testing screens one at a time (for image quality) has been tricking me: the individual differences between the Blaupunkt and Loewe I had setup where obvious when seen side by side yet the overall quality of each was less pronounced than I had expected.

So, it's confirmed: CRT_EmuDriver and GroovyMAME can be used with a dual output video card with two CRTs attached. :)

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