Build Your Own Arcade Controls Forum
Software Support => GroovyMAME => Topic started by: digitaldocc on November 19, 2014, 10:38:47 pm
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Does grooveymame support two displays on Linux or dos for multiple monitor games? I'm looking to install the OS on a memory card so I can turn the game off with a wall switch and not have to worry about a windows shutdown. Plus it would be really cool to have punchout, super punchout, and arm wrestling running on a duel monitor cab. I was able to use -numscreens 2 on a windows pc to pull it off but I can't seem to get it to work in dos. I get both monitors to display the same top/bottom screen. They won't seperate. Before I spend hours in grooveymame I was hoping one of the experienced users could help me out.
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There is no GroovyMAME for DOS I'm afraid. And dual monitor support is not officially available in GM for Linux (there is a chance it might work now that SDL2 is used). Linux is even worse than Windows if your plan is to turn it off with a wall switch, its file system gets corrupt too easily. The best setup for dual monitor support is Windows XP.
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It is possible to limit the switch-off corruption effect. It supposes to have the system in almost read only mode with shared memory writable for the normal operation (/var/run, /var/log). Only nvram hiscore an ini would write data to disk. Other files will then be volatile as non crucial for the system operations because they are recreated at next boot.
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Thanks for the heads up. You just saved me hours of time. Currently I'm exploring installing XP on a CF card. If that goes well I can work on making it read only.
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@digitaldocc
Just to confirm that the read-only described solution is valid on Linux system (e.g. GroovyArcade distro). On Windows it is more tricky to have such solution. Nevertheless, several possibilities exist (physical jumber on the hardrive controller, BIOS option and filesystem option.
NTFS read-only solution : http://superuser.com/questions/213005/how-to-mount-an-ntfs-partition-read-only-in-windows/213015#213015 (http://superuser.com/questions/213005/how-to-mount-an-ntfs-partition-read-only-in-windows/213015#213015)