Software Support > GroovyMAME
GroovyArcade live-CD 2022 (collaborative effort)
Substring:
Nice ! If you ever have time to test with arcade monitors and different GFX cards, I'd appreciate ;)
Substring:
New monthly release at https://github.com/substring/os/releases/tag/2020.01 !
All updates are listed on the release, but here are the main features :
- linux 5.4.8
- fixed installation on NVMe drives (thank you Banane for your help)
- interactive monitor setup at boot. You can't beat this with Windows hahaha
arfink:
I'm interested in trying this out, is it still limited to Radeon cards? Also how is sync being handled? Can I expect a csync signal on the VGA hsync line?
Substring:
--- Quote from: arfink on February 07, 2020, 07:11:41 am ---I'm interested in trying this out, is it still limited to Radeon cards? Also how is sync being handled? Can I expect a csync signal on the VGA hsync line?
--- End quote ---
Hey there !
Radeon cards: yes and no. They are the best so far because they allow low dotclocks, whereas Intel and Nvidia refuse any modeline which pixel clock is lower than 25MHz, which makes it hard for a genuine 15kHz without some dirty tricks. Intel are probably the worst case as it's hard to have a full control of the hardware chain between a iGPU and the VGA connector. Resultts can pretty much vary. Although I've made a patch to circumvent the 25MHz limit, this can have side effects on some specific hardware, so it's pretty risky as of now, and not shipped.
Sync is handled like normal VGA sync, so you have both HSync and VSync on their respective line.
One more word to make the difference with windows setups : no need to configre modelines one by one. Just configure your monitor type, groovymame will always choose the closest resolution to th original hardware. Look at the video I made earlier concerning autoconfiguration, you'll see it's pretty easy for a basic setup. Configure your screen, then you're ready to play free roms shipped with GA :)
Calamity:
Well, the situation with Intel and Nvidia on Linux is probably not as dark as painted by Substring, specially with Nvidia. Intel Iris has been reported to work with low dotclocks just fine. The 25 MHz limitation is not a problem as long as you use super resolutions in GM, which is the way to go nowadays anyway.
The problem, from the user point of view, is more in the fact that GA was designed assuming that you had no low dotclock limitations, so it will boot on 640x480 by default, and forcing it to boot on a double width mode such as 1280x480 in order to bypass dotclock limitations requires some non-trivial user input, as it is now.
So I'd say GA supports all GPUs, it's only that with Radeons things are more plug and play.
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