that made video in qt applications turn transparent or disappear entirely, depending on window manager and video backend.
Kdenlive required that cairo-dock use the cairo backend, not the openGL backend, until version2.3.0 came out. Other qt applications involving video reported similar bugs, hope they are also fixed.
Version 2.3.0 fixes a very serious opengl bug
https:/ /bugs.launchpad .net/ubuntu/ +source/ cairo-dock/ +bug/729970
that made video in qt applications turn transparent or disappear entirely, depending on window manager and video backend.
Kdenlive required that cairo-dock use the cairo backend, not the openGL backend, until version2.3.0 came out. Other qt applications involving video reported similar bugs, hope they are also fixed.