Am Sun, 17 Feb 2019 15:56:49 +0000 schrieb Folderol:

> On Sun, 17 Feb 2019 13:51:45 -0000 (UTC)
> Markus Robert Kessler  wrote:
>
>>Am Sun, 17 Feb 2019 13:31:00 +0000 schrieb Folderol:
>>
>>> On Sun, 17 Feb 2019 11:28:35 +0000 druck  wrote:
>>>
>>>>On 17/02/2019 11:19, Markus Robert Kessler wrote:
>>>>> 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.
>>>>
>>>>Connecting anything to the HDMI port causes an increase in power
>>>>usage.
>>>>A few of my Raspberry Pi's are connected to TV's, and I see an
>>>>increase in SOC temperature of 4C when they are switched on.
>>>>
>>>>> 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.
>>>>
>>>>I've not noticed any issues with the internal WiFi and just a TV
>>>>connected, but a HDMI powered dongle would be likely to affect it more
>>>>than just a TV.
>>>>
>>>>---druck
>>> Not seeing a problem here with a P3 BENFEI dongle from Amazon and a 3A
>>> PSU
>>
>>"BENFEI"? With active power in? Like this one:
>>
>>https://www.amazon.com/Active-Adapter-Benfei-Converter-Gold-Plated/dp/
>>B01KLKQN9U/
>>
>>Yes, sure this might solve the issue -- mine is not actively powered,
>>because I was not aware of such problems when ordering...
>>
>>Good lesson -- thanks!
>>
>>Markus
>
>
> Actually, I've found it will run quite happily without external power :)

Hi,

same here as long as my router's WiFi signal strength is high enough. If
I am willing to increase it to 100% maximum I also get connected while
RPi has to power the passive HDMI-VGA-converter.

Without converter, or, probably with an actively powered converter, 25%
output power are sufficient. This prevents me from being toasted, and so
I prefer this solution...

Best regards,

Markus


--
Please reply to group only.
For private email please use http://www.dipl-ing-kessler.de/email.htm

--- SoupGate-Win32 v1.05