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01-13-2023 03:28 AM
We have two laptops - both HP-15s models. One was purchased about 12 months ago, the other last week. The older one of the laptops connects to a TV via a 20m HDMI cable - works fine. When the newer one is connected the TV displays "No signal". However, if I look at the sound devices in Settings, I can see the Realtek Audio and the TV audio devices. I have tried adding a HDMI Extender but still no connectivity. If I use a shorter cable, it connects to the TV fine as well as to other devices such as an Epson projector.
I feel therefore that cable length could well be the problem but I don't understand why one machine connects and the other doesn't when they are the same spec. The 20m cable has an amplifier in it.
01-13-2023 11:02 AM
Do you use SAME cable ? Are BOTH computers the same model ? (not all 15s machines are the same) . Depending on HDMI port (actually machine), they can transmit longer or shorter.
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01-13-2023 01:40 PM
Yes - same cable.
The computers are different in that one identifies as HP Notebook - 15s-du1016tu and the other as HP Laptop 15s-du3605TU but both are 15s models albeit one is 12 months or so older. It would seem to me that the hardware/HDMI port is different in that the newer one we are having trouble with is unable to generate sufficient signal over that distance even when a HDMI Extender is added. I guess the simplest answer is to return it and exchange for a model that works over the distance - but it is disappointing that machines sold with the same model number can be so different. I actually would have expected the newer machine to out perform the older one.
02-02-2023 11:11 AM
I have the same question too. Mine is a little different. If I use a non powered travel docking station that is connected to the 20 ft cable to the meeting room panel I am able to project the laptop screen. If I don't use that docking station it will not project to the meeting room screen. Also if I connect the 20 ft cable directly to the meeting room monitor is works. If I use a standard 6 foot cable to the meeting room panel the laptop projects to the meeting room screens. None of my Dell Latitudes have this issue.
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