[Cialug] Raspberry Pi HDMI issue

[Dan Hockey]

There will be a rainbow colored square in the upper right corner of the
display if your voltage is below 4.9 volts.Pi's are more sensitive to low
voltage than they to low amperage.
And a bad cable most of the time will be the cause.

On Thu, Sep 29, 2016 at 10:01 AM, L. V. Lammert <lvl at omnitec.net> wrote:

> On Thu, 29 Sep 2016, Scott Yates wrote:
>
> > Is there really a danger of overloading?  I thought you could have a
> > 10Asupply, but whatever was plugged into it would just draw the
> > current(amps?) it needed.
> > I thought there was only a danger of overloading if your Volts were out
> > ofrange.
> >
> It's really a limitation of the jack and conductors - microUSB wires are
> WAY to small to be carrying that sort of power.
>
> Remember Samsung with their battery fires? How about a Pi fire - lay the
> power cable across a piece of paper, draw too much power, and POOF!
>
>         Lee
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