media-libs/mlt (and therefore media-video/kdenlive ) can use OpenGL via the media-video/movit toolkit. Please add a USE flag to enable OpenGL. See: http://www.mltframework.org/bin/view/MLT/OpenGL Reproducible: Always
Thanks, this is fixed in git. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d889cb0f7a1dbda62e132c2eba19215f4209d8d9