connect an external microphone to the combo port

[geom_imme]

Q.connect an external microphone to the combo port
I can't activate the port as an input

[Riddle_Decipher]

@geom_imme Welcome to HP Community!

How are you connecting the external microphone to the device? and what kind of microphone is it? USB or the 3.5mm jack?

Could you share a pic of how the cable looks or the model name of the microphone to check if its compatible?

Please elaborate and we'll help accordingly.

Keep us posted,

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[geom_imme]

Connect the microphone to the 3.5 mm jack the microphone is a C3 behringer (works properly) is connected to its amplifier and phantom power supply (48V); (it is not a problem of the microphone because if you connect the headphones to the amplifier, I listen well (and I see the signals from the meter).

The jack is a classic 3.5mm mono jack (which connect amplifier output, to notebook combo port).

I just wanted to understand how to set the combo port on input mode and not output  mode (because from the windows I see that headphones output is set) if I connect a 3.5mm 4-pole jack (headphones + microphone) it works correctly, both the headphones and the microphone are detected.

[Riddle_Decipher]

@geom_imme Well now just because you think it is a dual jack, doesn't actually mean it is. Many laptops don't have them anymore. They have just output ones (for headphones/speakers) and don't work for any inputs. A good way to check would be to try any other 'input' device.
Also you can try the following and see if you can get it to be recognized. But honestly it sounds like your jack isn't made for mic usage.
If your microphone isn't working, try the following...

1. Go to "Control Panel".
2. Click on "Sound".
3. Click the "Recording" tab.
4. Click on the device you are trying to fix.
5. Now click the "Configure" button and then click "Set up Microphone".
6. Once that is complete, click the "Properties" button.
7. When you are done with your changes, in "Properties", click "Apply" and then "OK".
8. Then click "OK", again, on the main "Sound window".

Keep us posted,

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.