Software Support > GroovyMAME
CRT range and vertical positioning
makya:
Regarding installation I think I can't help much because I don't use EDID at all (I'm on an HD4870).
Anyway, I had a look at the tutorial on Eiusdemmodi and Calamity says to unplug the PC CRT from the VGA output and then plug the 15kHz monitor in its place.
buttersoft:
--- Quote from: Milsancho on October 21, 2023, 01:40:37 pm ---The only thing I'd really like to clarify before proceeding is how the Emu Driver installation might differ considering my setup. I've read that I should not unplug the 31khz monitor, but if I want the 15khz monitor on the VGA output, I have to. Unless that meant I should use both, the HDMI and the VGA outputs from the beginning (which goes against everything explained in Calamity's guide).
--- End quote ---
The install won't be different. Adding modes might be interesting. I'm not sure how to target a particular display when using VMM, because, if you can't, the modelines will be common in the registry (so any screen can just grab them). If you set an EDID emulation for 15kHz, does the 31kHz monitor have it's own EDID to draw from? I guess the easiest way would just be to set your ranges and install the modelines you want, sacrificing 15kHz protection.
If you can't find a way to get 15kHz protection and still want it for the VGA display head, you could use an external dongle! Allow me to link you to my sale thread... which i swear was not my intent when i started writing this post, but i seem to have landed on it :/ http://forum.arcadecontrols.com/index.php/topic,167729.0.html
I'm also confused by the posts recommending two GroovyMAME installs. If you still have to configure the .ini files manually, why not do that for a single install?
I wonder what happens to the display you're not targeting, when MAME is running a game. Does MAME still push a mode to it? I know if you use a cloned desktop, one screen will simply be blank/black, but i don't what modeline it will be running.
makya:
In my view the purpose of two GM installs is safety in that 15kHz and 31kHz configurations are separate. Also, I find it easier to learn how to correctly set up GM for each monitor independently, than trying to put it all together in one shot, particularly as a beginner. Of course it does not apply to Milsancho's phase 2.
Otherwise, in my experience (on legacy card only) launching GM on a dual monitor setup with extended desktop, targeting only one of them will not deactivate the other, that will keep displaying the desktop. But icons or windows, will move as if the desktop area was modified.
Milsancho:
@makya
Was you dual monitor setup with legacy card also 15 and 31khz? I tried it previously with an HD4550 (for having two analogue outputs) and was out of luck with the latter.
@buttersoft:
I also wondered about having two different edids. I wanted to think that Windows manages that when you set which display is active, but when adding 15 and 31khz modes I wonder if I should have the desktop extended for them all to install, or if I should only add modes with the corresponding monitor active.
Thanks for the link as well, I might have to consider buying that. Is it that harmful getting out of sync eventually on a TV from the 90s?
As for the two Groovy installs, I don't think you'd still need to have per-game inis as you'll be forcing all the games to display accordingly to the CRT range you define for every Mame instance? Or have I misunderstood your question?
makya:
--- Quote from: Milsancho on October 22, 2023, 10:43:28 am ---Was you dual monitor setup with legacy card also 15 and 31khz? I tried it previously with an HD4550 (for having two analogue outputs) and was out of luck with the latter.
--- End quote ---
Dual monitor setup is TV + LCD monitor, both on analogue output. Pretty common I guess. I had it running on XP, Win7 and Win10.
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