how do I start looking for the package I need?

This happens with some mkv files and to all mp4 files I play, both with apt and flatpak installed vlc versions.

this never happened on the same computer with xubuntu 23.10

  • gnuhaut
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    7 months ago

    Can you check what video driver you are using? You might be on some kind of software renderer.

    What does

    glxinfo | grep renderer
    

    say?

    • merompetehlaOP
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      7 months ago

      that command returns

      GLX_MESA_copy_sub_buffer, GLX_MESA_query_renderer, GLX_MESA_swap_control, GLX_MESA_copy_sub_buffer, GLX_MESA_query_renderer, GLX_MESA_swap_control, Extended renderer info (GLX_MESA_query_renderer): OpenGL renderer string: Mesa Intel(R) HD Graphics 620 (KBL GT2)

      • gnuhaut
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        7 months ago

        This looks good.

        I don’t know how to figure out on vlc what sort of output method, codec, or hardware acceleration it’s currently using, so I second the other person who recommended mpv.