Hi all,

maybe this is of interest for others, too:

I always wondered why I can only hardly get a connection to my WiFi
router when running Rasperries -- Zero up to 3B+ -- in desktop mode, but
there were no WLAN issues when running as ssh server.

For doing this I formerly used an HDMI2VGA adapter (cheap 10 $ thing) and
it did work. But I recognized that it got really warm, and so, I
suspected that this energy came from the PC and not from the monitor.

I measured USB voltage output and found out that connecting this "adapter"
will cause the output to go from around 5.2 V to 5.1 or below.

This seems to significantly interfere with the internal WiFi module, and,
hence, when connecting the monitor with the Raspberry using a "normal"
HDMI-to-HDMI cable with no conversion, then the problems connecting to
WLAN router were gone.

This just to say in the case that other people see such issues, too.

Best regards,

Markus


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