https://bugs.freedesktop.org/show_bug.cgi?id=101787
--- Comment #15 from Julien Isorce julien.isorce@gmail.com --- (In reply to Julien Isorce from comment #14)
(In reply to 247 from comment #13)
tried again and this time the command gave me this result
error: XDG_RUNTIME_DIR not set in the environment. No protocol specified No protocol specified error: XDG_RUNTIME_DIR not set in the environment. No protocol specified No protocol specified set pipelines to PAUSED ... No protocol specified ERROR: pipelines don't wan't to pause. ERROR: from the element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: Could not initialise Xv output additional debug informations: xvimagesink.c(1759): gst_xv_image_sink_open (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: Could not open display (null) set pipeline to NULL ... free execution on the pipeline...
of course i translated everything into english...anyway i don't think it's a matter of x.org or wayland cause i've tried to set x.org as display driver but had exactly the same error...so don't think comparing gnome or cinnamon will help at this point...
Try installing libxv1 or try to use ximagesink (instead of xvimagesink)
Ah if this is wayland, then try: waylandsink (instead of xvimagesink), or autovideosink