HP RGS black screen Linux Sender

[GTVish]

We have setup and RGS Sender in RHEL 7.9 which runs in Cloud. The RGSENDER service also started and able to reach the port from the Receiver (Windows 10).

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ps -ef | grep -i rgs
root 10023 1 0 09:03 ? 00:00:00 /usr/bin/perl /usr/bin/rgsSSD
root 12950 12947 0 12:03 tty1 00:00:18 ./rgsender -daemon -display 0

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netstat -anp | grep 42966
tcp    0    0 0.0.0.0:42966    0.0.0.0:*    LISTEN -

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Tried to connect using rgs receiver, it shows "establishing connection", than after some time it changes to black screen. 

From Xorg.0.log -->

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[ 11945.000] (RG) 12:16:16.006 Attach to Shared Framebuffer, ID: 32788, Width: 1280, Height: 720
[ 11945.000] (RG) 12:16:16.006 Attach to Shared Framebuffer, ID: 32789, Width: 1280, Height: 720
[ 11945.000] (RG) 12:16:16.006 No overlay Property - Single layer device
[ 11945.002] AUDIT: Tue Apr 4 12:16:16 2023: 12947: client 9 connected from local host ( uid=0 gid=0 pid=12950 )
Auth name: MIT-MAGIC-COOKIE-1 ID: 750

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from rg.log -->

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04-04-23 12:16:16 INFO - LinuxSenderCursorFactory::createCursor - Using XFixesCursor.
04-04-23 12:16:16 INFO - VirtualDisplayHolder::resetVirtualDisplay: create SoftwareComparitron virtual display, remove old virtual display
04-04-23 12:16:16 INFO - VirtualDisplayHolder::handleDisplayTransition - created SoftwareComparitron virtual display
04-04-23 12:16:16 INFO - SenderImpl::handleResolutionModified: Notify receiver to change screen resolution
04-04-23 12:16:16 INFO - Width: 1280 Height: 720
04-04-23 12:16:16 INFO - SenderImpl::handleResolutionModified: Notify receiver to change screen resolution
04-04-23 12:16:16 INFO - Width: 1280 Height: 720
04-04-23 12:16:16 INFO - SenderImpl::connectionComplete: Receiver reports that connection is complete.

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Anybody knows about this issue ? or similar ?