PAL game in psx core

EDIT: Tested new core, and same problem

EDIT2:

Finally i found a workaround, but I did not really solve, with new core, set the initial and final scanline to make the 288px games fit in a 240px NTSC resolution

I did not found any way yet to make retroarch stretch the PAL games correctly, looks like the psx core only detect 240px like a valid core reoslution. Any advice will be welcome

------------ OLD QUESTION --------------

Hi, a simple question

If the game is NTSC the core assign a scaling of 240 (240/480/720/960/1200… etc), i use a resolution of 1280x960, and looks great

But with PAL games, koudelka for example, that have a resolution of 256-288px… how to do? if i set 1280x1024 manually, the game still stretch in a bad way (some “pixel” are 3px other 5px…)

Looks like retroarch detect the game like NTSC, and scale in a incorrect way

Any ideas?

Thanks