šØ Troubleshooting: Black Screen on Video Source in Preview
If you are experiencing a black screen on a video source, follow these steps to diagnose and resolve the issue.
Step 1: Check If the Whole System Is Affected
ā Action:
Check if only one active video source has black preview frame or if all video streams are down.
If all streams are black, a single faulty source may have crashed the entire processing pipeline.
ā If only one stream is black:
Proceed to Step 2 to troubleshoot the specific video source.
ā If all streams are down:
Skip to Step 3 to check for a broken stream affecting the pipeline.
Step 2: Test the Video Stream in VLC
ā Action:
Open VLC Media Player.
Go to Media > Open Network Stream and enter the video stream URL (e.g., RTSP, HTTP).
Click Play and check if the video appears.
ā If the stream works in VLC:
The issue is possibly within the processing system (pipeline conflict, bandwidth issue, or software settings).
Proceed to Step 3.
ā If the stream does NOT work in VLC:
The problem is with the camera, network, or video source configuration.
Restart the camera and try again.
If the issue persists, check the network connection and verify the camera settings.
Step 3: Disable Other Video Sources
ā Action:
In your system settings, deactivate all other video sources and leave only the problematic one enabled.
Reboot Service in System Settings and check if the black screen issue is resolved.
ā If the video now works:
There may be a resource conflict (too many streams active at once).
Reduce the number of active streams or lower their resolution.
ā If the black screen remains:
Proceed to Step 4.
Step 4: Reboot the Processing Device
ā Action:
Go to Device Settings and perform a full reboot.
Wait for the system to restart and check the video stream again.
ā If the video works after reboot:
The issue was likely a temporary software or network glitch.
ā If the black screen persists:
Proceed to Step 5.
Step 5: Check Network & Camera Configuration
ā Action:
Verify that the camera is connected to the correct network.
If using a wired connection, check cables and switch ports.
If using Wi-Fi, ensure the signal is strong and there is no interference.
ā Try adjusting camera settings:
Change the resolution or bitrate to a lower value.
Try switching the compression format (H.264, H.265, MJPEG).
Restart the camera and retest in VLC.
Change authentication to Basic
ā If the issue persists:
Proceed to Step 6.
Step 6: Reach Out for Support
If none of the above steps resolve the issue, the problem may require deeper diagnostics by the DEKI support team.
š§ Contact DEKI Support at: [email protected]
When reaching out, please include: š¹ Device Model & APP / API Version (bottom left corner of the interface) š¹ Affected Video Source Details (Camera Type, IP, Stream URL) š¹ Steps Already Taken
Our team will assist you in resolving the issue as quickly as possible. š
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