Lightware UBEX Series User Manual page 173

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11. Troubleshooting 11. Troubleshooting
Symptom Root cause
No picture on the Display is not able to
video output display the video format
Display is not able to
display the video format
HDCP is disabled (TX)
HDCP is disabled (RX)
Not the desired Video output is set to
picture displayed test pattern (no sync
on the video screen) statically (RX)
output
Video stream is
switched to another
output
Colors of the video Incorrect color space
is incorrect setting is active (TX)
Incorrect color space
setting is active (RX)
No audio is Source audio volume is
present on output low or muted
The incoming audio
signal is unsupported
The analog audio output
port is muted
Volume of the analog
audio port is set low
Applied F-series endpoint firmware package: v1.4.1 | Applied R-series endpoint firmware package: v1.4.1 | Applied MMU firmware package: v1.2.1 | LDC software: v1.34.0b2
Action Refer to
Video signal
Scale the stream on HDMI in 1 port of
the transmitter to the resolution and
LW3
refresh rate of the sink device.
Scale the stream on the HDMI out 1
port of the receiver to the resolution and
LW3
refresh rate of the sink device.
Enable HDCP on the TX input ports.
LW3
Enable HDCP on the RX output ports.
LW3
Check No sync screen settings in the
HDMI output properties (RX).
LW3
Check the crosspoint state.
LW3
Check the color space settings on the
TX side.
LW3
Check the color space settings on the
RX side.
LW3
Audio signal
Check the audio settings of the source.
Query the status of the audio output port
LW3
and select a supported signal source
Check the analog audio output port
properties
LW3
Check the analog audio input/output
port properties
LW3
LW3
UBEX series – Matrix Application Mode – User's Manual UBEX series – Matrix Application Mode – User's Manual
Symptom
8.8.1
HDMI output
signal contains no
9.8.11
audio
8.9.2 Not the desired
audio can be heard
9.9.10
on the output
8.8.2
9.8.15
No picture on the
video output
8.9.2
9.9.19
The picture is
always dropped
8.12.2
Bandwidth
9.9.16 problem on the
network with
8.4 a single 4K60
stream
9.7.3
All streams are
8.8.1
transmitted except
the 4K60 one
9.8.13
8.9.2
9.9.13
Black stripes in
the picture
9.15.13
8.10.3
9.13.5
8.10.2
* For more details about the configuration steps of the network switch with real-life examples please visit
8.10.3
our website and download the application notes for UBEX:
9.13.1
https://lightware.com/media/lightware/filedownloader/file/Support-Guide/Installation_and_Network_
9.13.2
Setup_Guide_for_UBEX.pdf
Root cause Action
Audio signal
DVI EDID is emulated Check the EDID and select and HDMI
EDID to emulate (the setting is available
in the transmitter side).
Audio stream is Check the audio crosspoint settings.
switched to another
output
Network switch related issues *
Link aggregation is not Create Link Aggregation
set in the switch. (LAG's)/EtherChannels etc. for each
port pair that is used.
VLAN tagging is not set. Set the 286 VLAN ID and add all LAGs to
this VLAN.
All streams are Enable IGMPv2 snooping.
transmitted to all
outputs because
IGMPv2 snooping in not
enabled.
One of the 10G link Check the LLDP and the status of the
cables is connected to LAGs.
another LAG.
Only one SFP+ module Install two 10GbE SFP+ modules / DAC
/ DAC cable is installed cables between the endpoint and the
in the endpoint device network switch
instead of two.
IGMPv2 snooping in not Enable IGMPv2 snooping.
enabled.
Optical cable became Use special fiber optical cable cleaning
contaminated. equipment to clean it carefully.
Cable connection Cables must fit very well, check all the
problem. connectors (video and optical/DAC
cables).
173 173
Refer to
8.13.1
LW3 9.14
8.4
LW3 9.11.1
Groups
3.8.1
3.8.2
3.8.3
3.8.4
3.6
3.8.3
2.4
3.6