Not sure if this is the right place to report this as the Stella 2023 repo doesn't have issues enabled and links to the main Stella repo for bug reporting, despite the main repo specifically saying they don't want libretro bugs reported there, and there appears to be no repo for the base "Stella" core.
Stella 2023 does not seem to correctly relay the new resolution of the content to retroarch if you use the core option to crop the overscan area. You can check this by setting custom integer scaling, setting both X and Y to an integer scale, then switching the crop setting. In Stella, X will no longer register as an integer scale, but it remains so in Stella 2023.
In Stella, enabling any of the TV effects completely changes the aspect ratio of the content. Retroarch reads the aspect ratio as 4:3 without the setting enabled but as 271:228 with it enabled.
Also, in both cores, the TV effects are applied before cropping, resulting in elements of the overscan area being visible in the frame. In Stella, it's an entire 2 columns of pixels, whereas in Stella 2023, it's just the result of content in the overscan area getting blurred with the visible area.
Not sure if this is the right place to report this as the Stella 2023 repo doesn't have issues enabled and links to the main Stella repo for bug reporting, despite the main repo specifically saying they don't want libretro bugs reported there, and there appears to be no repo for the base "Stella" core.
Stella 2023 does not seem to correctly relay the new resolution of the content to retroarch if you use the core option to crop the overscan area. You can check this by setting custom integer scaling, setting both X and Y to an integer scale, then switching the crop setting. In Stella, X will no longer register as an integer scale, but it remains so in Stella 2023.
In Stella, enabling any of the TV effects completely changes the aspect ratio of the content. Retroarch reads the aspect ratio as 4:3 without the setting enabled but as 271:228 with it enabled.
Also, in both cores, the TV effects are applied before cropping, resulting in elements of the overscan area being visible in the frame. In Stella, it's an entire 2 columns of pixels, whereas in Stella 2023, it's just the result of content in the overscan area getting blurred with the visible area.