[arm-allstar] HDMI and the PI

[Ken]

Slightly off-topic:  I bought a small HDMI display to use with my RPI
collection and found that, when I disconnect the 5 VDC from the RPI, the
computer then tries to boot up using power supplied from the HDMI display.
The re-boot is not successful since the HDMI seems unable to supply the
voltage needed during part of the boot up sequence so it repeats endlessly.
I suspect that this has killed one of my RPI3's.  So the question:  should
this happen?  Has anyone else seen it? What do to?

 

On a related note:  for any HDMI display - it seems that if you connect the
display after the RPI is up and running, it is not recognized.  It's as if
the DHMI port is turned off.  Is there some option or setting that can force
the HDMI port to be "on" or to recognize that something has been plugged in?

 

Thanks

Ken

KE2N

 

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