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BGFX too slow on my new 4k Samsung TV UN7100
#382208 - 04/29/19 03:47 PM
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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!
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Dullaron |
Diablo III - Dunard #1884
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Reged: 07/22/05
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Posts: 6126
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Loc: Fort Worth, Tx
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Re: BGFX too slow on my new 4k Samsung TV UN7100
[Re: R.Coltrane]
#382211 - 04/29/19 06:00 PM
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> 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.
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W11 Home 64-bit + Nobara OS / AMD Radeon RX 5700 XT / AMD Ryzen 7 3700X 8-Core 3.59 GHz / RAM 64 GB
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Re: BGFX too slow on my new 4k Samsung TV UN7100
[Re: Dullaron]
#382214 - 04/29/19 07:59 PM
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Ok, I've figured it out! My bgfx_backend was set to "auto" and it wasn't selecting the best option I guess. After setting it to "OpenGL" manually, the slowdown is gone!
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Dullaron |
Diablo III - Dunard #1884
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Reged: 07/22/05
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Posts: 6126
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Loc: Fort Worth, Tx
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Send PM
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Re: BGFX too slow on my new 4k Samsung TV UN7100
[Re: R.Coltrane]
#382223 - 04/30/19 05:02 AM
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> Ok, I've figured it out! My bgfx_backend was set to "auto" and it wasn't selecting > the best option I guess. After setting it to "OpenGL" manually, the slowdown is gone!
Nice. Glad that problem went away.
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W11 Home 64-bit + Nobara OS / AMD Radeon RX 5700 XT / AMD Ryzen 7 3700X 8-Core 3.59 GHz / RAM 64 GB
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Re: BGFX too slow on my new 4k Samsung TV UN7100
[Re: Dullaron]
#382227 - 04/30/19 01:42 PM
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I just would like to know why bgfx gles/d3d11/d3d9 are so d*mn slow with my tv since HLSL and GLSL both work just fine
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