kmssink0: failed to configure video mode

[bubbab315]

I have a mpsoc from Xilinx, and am having a hard time replicating a video
output to a display. I can connect to it and run •	gst-launch-1.0
videotestsrc ! video/x-raw, width=1920, height=1080 ! ximagesink and that
works. 
However I get the following error when I try to run 
*gst-launch-1.0 filesrc location=/home/root/sd/test2.mp4 ! qtdemux
name=demux demux.video_0 ! h264parse ! avdec_h264 ! queue max-size-bytes=0 !
kmssink bus-id=fd4a0000.zynqmp-display fullscreen-overlay=1 *

Error:
/root at uz3eg-iocc-2018-2:~# gst-launch-1.0 filesrc
location=/home/root/sd/test2.mp4 ! qtdemux name=demux demux.video_0 !
h264parse ! avdec_h264 ! queue max-size-bytes=0 ! kmssink
bus-id=fd4a0000.zynqmp-display fullscreen-overlay=1
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Redistribute latency...
ERROR: from element /GstPipeline:pipeline0/GstKMSSink:kmssink0: GStreamer
error: negotiation problem.
Additional debug info:
../../../git/sys/kms/gstkmssink.c(1218): gst_kms_sink_set_caps ():
/GstPipeline:pipeline0/GstKMSSink:kmssink0:
failed to configure video mode
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
[2]+  Done(1)                 /usr/bin/Xorg -depth 16
root at uz3eg-iocc-2018-2:~# GstKMSSink:kmssink0:
-sh: GstKMSSink:kmssink0:: command not found
root at uz3eg-iocc-2018-2:~# failed to configure video mode[ 4965.084940] PLL:
shutdown/

Any tips on diagnosing this error so that I can output my video?



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