
Problem Possible Solution
No Sound DVD player: Go to DVD player's audio setting, change audio setting
from Auto to PCM.
Fire Stick or Apple TV: Go to device's audio settings and try the
following:
•switch off Dolby audio option
•select Dolby Digital Plus ‘Off’ mode
•turn off auto-audio
•change audio to stereo
•turn on PCM
Roku Stick: Go to audio setting on Roku and change the audio setting
to PCM-stereo.
If playing videos from USB device:Check if the video package DTS
audio tracks. If so, change the video source.
Connect
computer
via HDMI, no
Response
Windows PC: Go to "Settings" > "Displays" on your computer, select
"Duplicate These Displays", then select “Apply”.
Apple Mac:Go to "System preferences" > "Settings" > "Arrangement",
select "Mirror Displays".
Cannot play
videos while
doing screen
mirroring
This problem is due to DRM service, a copyright protection service,
which will prevent video from playing while screen mirroring. Play video
from other apps that do not have DRM service, or play downloaded
local videos.