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Old 29-05-2020, 15:03   #1
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USB serial com ports interfering with USB mouse/keyboard on Windows10

I was not sure where to post this, but I have issues with COM ports.


On windows10 mini PC that i'm trying to setup for navigation and radio email I have com ports issues.

Adding third USB-Serial adapter to get a COM port, is causing my mouse and keyboard to go haywire.



I use one COM port for OpenCPN/GPS and receiving AIS
I use another, and for emails via Pactor and ICOM710
I use another GPS receiver to give Airmail direct access to position so i can report those as I go.



On my older windows 7 box I had one real serial DB9 input that was hardwired to COM1 and that was my AIS/GPS receiver for OpenCPN.

With that box I was able to add two more prolific USB serial adapters and things worked.

i.e. USB mouse and keyboard were fine.



Anyone knows why this is happening and how to get around USB-serial adapters and conflict with USB mouse/keyboard
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Old 29-05-2020, 15:20   #2
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Re: USB serial com ports interfering with USB mouse/keyboard on Windows10

With some Windows systems NMEA data can be confused with mouse data.

Turn off the NMEA output (probably the AIS and GPS ports, but worth checking the others) but leave the USB adapter plugged in. Hopefully you will now have control of the mouse (if you don't then the rest of this is probably wrong).

Go to device manager and in the "Ports (Com and LPT)" section find the virtual com port associated with the USB device(s).

Open the settings for that port and go to the "Port Settings" tab.

Click on the "Advanced" button.

In the bottom right there should be a "Miscellaneous Options" box.

In that box turn off/uncheck "Serial Enumerator".

Turn the NMEA data back on (connect to the AIS or whatever) and see what happens
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Old 03-06-2020, 07:59   #3
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Re: USB serial com ports interfering with USB mouse/keyboard on Windows10

Thank you
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