Using HDMI cable (tried several) appears 'No signal' on the monitor (tried several). VGA connection works fine and BenQ (HDMI) icon appears in the device menu. According to Windows all drivers are up to date.
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Obviously changed something. Check to make sure you haven't inadvertently muted the speakers. Go on your computer in the sound settings in control panel (manage audio devices) and ensure you have them set right.
If you actually have a cable with HDMI on one end and VGA on the other, it will probably not work. HDMI uses a digital signal and VGA uses an Analog signal, there needs to be some circuitry somewhere that handles the conversion. You are probably getting Cable Not Connected because the monitor is scanning for an Analog signal and not recognising the digital signal coming in over the VGA port.
Get a HDMI to VGA converter
The problem might be with your ram. Try taking it out and putting it back in. You might also have a problem with the video card. Make sure it is secure and screwed in.
Your HP2009M monitor supports (3) methods of accepting signals from a computer. They are: 1) VGA, 2) DVI and, 3) HDMI.
You would connect the computer to the monitor using one connection only. Generally the VGA is the least desirable as it is an analog signal. The DVI and HDMI method provide digital paths into the monitor and often perform better. Your computer may only offer 1 or 2 connection choices, so you'll have to choose a cable type that is supported by both the computer and the monitor. The HDMI choice will pass audio signals to the the speakers in the monitor without needing to run a second cable between the stereo audio jack of the computer and the audio input jack of the monitor (located next to the HDMI jack) or to a set of external speakers (unless of course you prefer the external speakers).
The message you're seeing is normal. Once the monitor is connected to your computer, there will only be one active selection; VGA, DVI or HDMI. Since you're using the analog VGA jacks and cable, it is expected that you'll see a message that there is no signal present on the DVI (and HDMI) inputs when attempting to view signals on other inputs.
I hope this helps and good luck! Please rate my reply, thank you.
This could be a bios setting to say what sound device is active when you use HDMI. If it's trying to send the audio signal through the HDMI cable, you'll need to have a way to handle that signal on the monitor.
Why do you use VGA-HDMI cable? This TV works fine with VGA cable - it has VGA plug. Or if your notebook has DVI output, then you can use DVI/HDMI cable and connect it to the TV to plug named DVI/HDMI (only one HDMI input is marked as DVI on TV). I suppose that over HDMI the TV supports only some standard resolutions, but over VGA it supports almost every resolution laptops use. You can find supported resolutions for each input in the TV manual. Try setting the same resolution on the laptop.
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