HDMI IN - video plays slow with significant latency delay and hangs intermittently
I am using Ubuntu desktop image
Tried with Qt V4L2 Test Utility as well as Gstreamer

Also,

-> v4l2-ctl -d /dev/video0 --get-fmt-video
shows
Pixel Format : 'BGR3' (24-bit BGR 8-8-8)

-> fuser /dev/mpp_service
returns blank output

-> hardinfo command returns:
libGL error: failed to create dri screen
libGL error: failed to load driver: rockchip

Video In device details show:
rockchip,hdmiin rockchip,hdmiin
Type: Unknown
Bus: 0
Vendor: 0
Product: 0
Version: 0
Connected to: ALSA

Please advices,