The VideoLAN Forums

In the advanced options, under Video -> Subtitles / OSD, set "Force subtitle position" to a large positive value (positive values push the subtitles up, negative values push them down). It will never push them "outside" of the video (I set it to 4000 and the subtitles were placed...

I do not have a dedicated GPU:

Model Name: iMac
Model Identifier: iMac14,2
Processor Name: Intel Core i5
Processor Speed: 3.2 GHz

Your 2013 iMac does have a dedicated GPU, the nVidia GeForce GT 755M.

Hi, this should have been fixed with 3.0.7.1, does it still happen? It still happens with 3.0.7.1 on my new 2019 iMac 27" (i9-9900K / Radeon Pro Vega 48), when: In full-screen mode, or a windowed mode where the window size is larger than the video size, AND The display brightness is set to ~75...