Unable to get pi to start up.
#16
What is plugable USB power?
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#17
My suspicion is power supply and grounding. The presence/absence of HDMI cable may help or hinder the power supply by the addition of an alternative ground path.

I'd quite like to simplify this.
Remove all USB devices. Connect ethernet. Use an sdcard with a clean install an no config.txt changes.
Boot up. ssh in (even if you don't have a display the IP address is likely to be the same as previous boot).

Report output of:
Code:
tvservice -s
tvservice -m CEA
tvservice -m DMT
tvservice -d edid.dat
vcgencmd version
vcgencmd get_config int
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#18
(2016-01-27, 14:44)ActionA Wrote: What is plugable USB power?

Image
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#19
Started over

different power supply
New Pi 2
New PNY 16 gb card
different usb wifi
download new image

It is now working on one of the tvs that I could not get it to before.
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Unable to get pi to start up.0