Solved by using a RPi3 intead of RPi2!

Site full of attitude. DELETED. Moved on to something else.

Regards.

@gullo said in Amiga video stuttering:

I have write into recalbox.conf "amiga600.videomode=CEA 19 hdmi" to force a 50 hz 720p, but it doesn't seem work. why? Is correct this procedure? or is my mistake.

Because once against it is not a libretro core, so you can modify its display properties like that.

Actually, as far as I know, you can't modify display properties at all in amiberry's version of recalbox, when we integrated it it was a pretty early version.

Now they (amiberry's team) worked a lot on it but I'm not even sure they implemented that, I'll have a look on it when I work on the bug upgrade of the emulator in a several months.

In the future the aim of amiberry's team was to make it a libretro core though, so it should be possible in the not-so-near future

A way to fix the mega CD problem is changing the preset core to Genesisplusgx. But if the sound probleprappear, there's only one solution for that: complete reinstallation of recalbox on the card...

Have you tried with a different emulator to see if it makes any difference?
This old thread might be helpful: https://forum.recalbox.com/topic/2882/theres-some-way-to-turn-on-fm-sound-on-master-system-emulator-on-recallbox/2