MAMEWorld Forums - EmuChat - Re: BGFX too slow on my new 4k Samsung TV UN7100

> I've a new Samsung 4k UHD TV and when I try to play MAME using BGFX in my laptop
> connected through an HDMI cable, the speed decreases dramatically. Every game runs in
> super slow motion, even 80's games such as Pac-Man! When I pull the HDMI plug from
> the laptop, the speed comes back immediately on my laptop. Does anyone here know
> what's going on, or had the same issue?
>
> And when I turn off bgfx, all my games runs just fine on the TV, with the correct
> speed and no lags at all.
>
>
> The funny thing is that on my old Samsung HDTV, BGFX was working fine!

Sound like memory or something couldn't handle the TV screen size when using it.

Try out this. video soft in your mame.ini to see it still does that. Just for testing it.

W11 Home 64-bit + Nobara OS / AMD Radeon RX 5700 XT / AMD Ryzen 7 3700X 8-Core 3.59 GHz / RAM 64 GB