Groovymame attract mode resolution error

[Jodannar]

Hi all. I’m relatively new to all of this crt setup at 15khz and I have made an error when using groovymame on a setup I purchased. I have altered the resolution within groovymame to a resolution that the monitor does not support, as such I get a garbled desynched mess in attract mode. If I launch into a game, the resolution switches and is correct through mame, I only have the issue on boot into attract mode. Returning from mame to attract mode the resolution swaps back to what was set and I get desync. If I exit attract mode.. I think it’s kicking me back to the groovymame setup config window as I have some blue garbled mess, but I can’t navigate it to correct any issues.


 I have tried connecting an lcd but that forces the gpu into a resolution it can handle and then I have the inverse problem.  When using an lcd if I try to exit attract mode it is not booting me out to the groovymame setup as it used to. Any assistance please?

[Jodannar]

Additional information. Running the latest groovymame version through the inbuilt update. Linux system.

[buttersoft]

Does GM on linux use the ini files? Try deleting default.ini, if such a thing  exists. But also open MAME.ini and see if there's a weird resolution set somewhere, i guess?

[Substring]

I'm not sure I understand good the issue : GM runs great, but not AM ?

Are you, by any chance, using GroovyArcade ?

[Jodannar]

Apoliogies, yes. It is a GroovyArcade distribution being used as the OS that has the setting altered within it. As stated, quite new to this and incorrectly stated the component in error.

[Substring]

can you give me the output of uname -a please ? I wish you have my version of GroovyArcade, and not the old unmaintained one ...

[Jodannar]

Will do once I can ssh into the machine or get an output of a command line onto an lcd monitor in the coming days.

[Jodannar]

This has been resolved by sting into the machine and re-configuring the resolution through gasetup.