The subtitles should be displayed on the TV screen. Now connect to Chromecast and start playback as usual. Select the option Play on Chromecast from the Play menu.Play the video in SMPlayer and select the vtt subtitle from the menu Subtitles -> Primary track.Store the vtt file in the same folder of the video. Or just use any other tool you may find on the Internet. You can convert subtitles in srt format to the vtt format here. First you need to convert the subtitles to vtt.The subtitles must be in the same folder of the video.

However currently there are some limitations: Now SMPlayer 17.3 has just added the possibility to display subtitles on Chromecast (still an experimental feature). The ffmpeg libraries are one example of an important component which may not be the correct ones.SMPlayer 17.1 added support for Chromecast. I am sure there will be some library mismatches and wrong version numbers. Having said that, I do NOT expect this vlc to fully work in Slacko. In 64bit Slacko, it may be that libraries are all in /usr/lib64 and /usr/lib is not even added to LD_LIBRARY_PATHĮxport LD_LIBRARY_PATH=/usr/lib:$LD_LIBRARY_PATH The libvlc.so.5 is there, but it is in /usr/lib One of the niggles with the move from 32bit to 64bit is that libraries are often not in /usr/lib anymore. Maybe I should have configured LIBDIR=/usr/lib/x86_64-lixux-gnu as this seems to be where most of the libraries go. This experimental build was configured with the default LIBDIR=/usr/lib which works OK in Fossa it seems.

Althought this thread addresses VLC with Chromecast use in FossaPUP64, I tired to PET on Slacko64 v8.01.

Smplayer chromecast