Thank you Alban. When I tried Y cable on the USB ports that I have been using to connect the monitor, it gave same result. I found that these USB ports are integrated on the motherboard. So, I switched the Y cable to a USB hub that is external to motherboard, and the monitor started working. Your prediction about not having enough power to the monitor from USB port seems to be the root cause of this issue. I do appreciate your guidance with this issue.
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