Build Your Own Arcade Controls Forum

Software Support => GroovyMAME => Topic started by: NIGEL71 on March 01, 2022, 12:04:17 pm

Title: Sony BVM 20G1E, CRTEmu and Groovymame problems.
Post by: NIGEL71 on March 01, 2022, 12:04:17 pm

Apologies for another 'I can't figure it out' post. My old brain is literally melting and I can't sleep for trying to figure it out!!

I have a UK/Europe Sony BVM 20G1E (recent purchase), an old Lenovo M93p with an ATI/AMD Radeon HD 6450 1GB graphics card.

The computer is attached to the monitor via DVI-I into a VGA adapter and then VGA to 5 BNC (I also have a 4 BNC lead).

Switchres installed fine and can see my AMD.

Starting up CRTEmu and the only monitor pre-set that doesn't cause the screen to roll is NTSC TV 60HZ. I select this one and then when generating modelines (using super.ini) it gives me 5 to install (it does say 26 redundant video modes found).

When I try and run a game via Groovymame for example, Outrun video mode is 320 x 224 (H) 60.05439 Hz and Switchres is 2560 x 240p 59.940 kHz the games will start to vertically roll very slowly.

If I run via Groovymame for example, Super Sprint video is 512 x 384 (H) 60.096153 kHz and Swithres is 2560 x 480i 59.940 Hz 15.734 kHz the game runs fine.

Would I be right in thinking I have a problem with games displaying at 240p?

I can usually figure this stuff out via research, tutorials etc and really don't want to be a bother, but if someone can shed some light on what I'm doing wrong I would be super grateful!

I've included some pics and videos that might help?

Many thanks.

Title: Re: Sony BVM 20G1E, CRTEmu and Groovymame problems.
Post by: Calamity on March 01, 2022, 04:39:55 pm

Unless you're using the c-sync switch in VMMaker, you need a way to combine H&V syncs in order to feed the BVM.

Title: Re: Sony BVM 20G1E, CRTEmu and Groovymame problems.
Post by: NIGEL71 on March 01, 2022, 06:18:49 pm

Thanks for the reply Calamity, I can appreciate how busy you must be.

I had tried it with csync on, but got the same result.

What I hadn’t tried was turning csync on and taking the desktop resolution down to 240p.

It works brilliantly!! No more rolling screen!!

Thank you so much for your help!!

Title: Re: Sony BVM 20G1E, CRTEmu and Groovymame problems.
Post by: buttersoft on March 01, 2022, 07:06:15 pm

nice monitor, glad to hear you got it sorted

Title: Re: Sony BVM 20G1E, CRTEmu and Groovymame problems.
Post by: NIGEL71 on March 01, 2022, 08:00:37 pm

Thanks Buttersoft, I’m really pleased with it (my girlfriend not so much!).

Title: Re: Sony BVM 20G1E, CRTEmu and Groovymame problems.
Post by: NIGEL71 on March 23, 2022, 12:56:21 pm

I’m back with another question!

I’ve purchased a Radeon R9 380x and installed CRT Emudriver.
(CRT Emudriver & CRT Tools 2.0 beta 15 (Adrenalin 18.5.1 for GCN* cards) for Windows 10 64-bits)
When playing certain games - Super Sprint, Virtua Racing etc I get the horizontal line that looks corrupted near the top of the screen (see pic).

I don’t get this on 240p games.
Also, checking back on my previous card, a Radeon HD 6450 this line doesn’t appear when playing the same games.

I’ve not installed Atom-15, do I need to? Have I installed the correct CRT Emudrivers?

Any input is greatly received.

Finally, I watched Calamity being interviewed on YouTube the other day. Really fascinating! Fantastic!!