snes9x stuttering on nintendo switch portable mode with gl api

[asp0909]

as the title says ... of course, in tv mode this does not happen, if you change the api to software mode the stutering does not appear ... this problem has enough time already ... I do not know if someone else has already reported it but don't lease it

[RobLoach]

Could you provide a bit more information? Driver information? Shader info?

[asp0909]

Where is that info? ?

[RobLoach]

https://docs.libretro.com/guides/generating-retroarch-logs/

[m4xw]

This is actually a old one, snes9x runs so fast it actually causes sync issues with gl.
it works fine on my sw gfx driver that I wrote, never figured why.

[m4xw]

Fwiw this happens with the gl driver and that core since I wrote the implementation.
this might be related to nouveau or a obscure gl driver bug, but seems to be frontend related.

[asp0909]

m4xw You could tell those who fix these things ... it would be great!

[m4xw]

@asp0909 That would be me

[asp0909]

do you fix it? I have that console just for that core, my friend...ja ja

[m4xw]

@asp0909 Why do u want GL tho?
Honestly, for that core, the switch video driver is exactly why its still there.
You can even have real 1:1 pixel output if u set "1:1 par" in the video settings as aspect ratio.
Guess u want shaders?

do you fix it?

Its so low prio that I didn't fix it for over a year (I wrote all of the switch stuff thats relevant)

[asp0909]

snes9x should work fine in gl, like the other cores ... and not have to switch to the Switch driver ... no core does that! and I use core provided, never 1.1, I think nobody uses that aspect ratio, and using the shaders sounds great ...

[asp0909]

Doesn't it seem relevant to you that the core works with stuttering on the console's main video driver?

[m4xw]

@asp0909 Blame nouveau, as far as I am concerned it's neither a RA bug or core bug, but a issue with the GL driver itself.
Also I dont use the core so I dont care.
You can start a bounty if you want.