<div dir="ltr">Hello, <div>I was wondering if I installed all the gstreamer plugins I need and I found this site:</div><div><br></div><div><a href="https://gstreamer.freedesktop.org/documentation/frequently-asked-questions/using.html">https://gstreamer.freedesktop.org/documentation/frequently-asked-questions/using.html</a><br></div><div><br></div><div>There is a particular command that checks if video output gets displayed. </div><div>With ximagesink I get the output  I expect while xvimagesink displays this message :</div><div><pre style="margin-top:0px;margin-bottom:1em;padding:5px;border:0px;font-variant-numeric:inherit;font-stretch:inherit;font-size:13px;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;vertical-align:baseline;width:auto;max-height:600px;overflow:auto;background-color:rgb(239,240,241);word-wrap:normal;color:rgb(17,17,17)"><code style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace,sans-serif;vertical-align:baseline;white-space:inherit">gst-launch-1.0 videotestsrc ! videoconvert ! xvimagesink
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: 
Could not initialise Xv output
Additional debug info:
xvimagesink.c(1760): gst_xv_image_sink_open (): 
/GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
No Xv Port available
Setting pipeline to NULL ...
Freeing pipeline ...</code></pre></div><div><br></div><div>I'm using Ubuntu 16.04 inside a virtual machine. How should I solve this problem?</div><div><br></div><div>Thank you</div></div>