AMD RX 470 does not work in GroovyMAME

[punkysuen]

I successfully set up GM on one PC, but fail to do so on another PC.

[CRT]
tri-sync monitor on Sega New Net City

[PC1 - succeed]
Intel i5
AMD R9 290

[PC2 - fail]
AMD Ryzen
AMD RX 470

For the case of RX 470, I found a very strange situation. Sometimes I am able to switch to 2560x224 in ArcadeOSD, but sometimes it shows no signal.

Does anyone use RX 470 and able to make it works?

The attachments are two logs generated with -v sf2 on two PCs respectively.

[Calamity]

Hi punkysuen,

How are you connecting your RX 470. I understand you're using some kind of digital to analogue converter. Please specify which one so I can think of something.

[punkysuen]

Thanks for reply.
I am using a convertor with unknown brand, look like this:

By the way, I solved the problem by updating GroovyMAME 0.216 - Switchres v0.017l to GroovyMAME 0.216 - Switchres v0.017p
However, sometimes when I quit a game, I got a flickering screen.

I need to use AracdeOSD to switch to another modeline and switch back to normal.

[Calamity]

Have you enabled EDID emulation on the HDMI output?

[punkysuen]

Yes, I have enabled the EDID emulation and checked on the right output.