First what I thought was exactly what P.J. suggested: one (or two) of
the contacts were not making a good contact. So, I would have
just unplugged and re-plugged the cables at each junction.
After I've read that you were using HDMI, I thought that it could be a few
other reasons that are HDMI-specific.
With HDMI interface, the devices actually establish (negotiate)
the connection. And some devices can refuse that connection if they
decide that something is wrong.
It is related to a "security" (anti-pirating) feature. This is especially
the case when the displaying device (TV, projector) is an older
model/unit. I don't remember why, - probably, because it is missing
something related to a later version of that handshake protocol. I found
that even some small flakiness (that you otherwise
don't see) of the connector between my Amazon stick and my ~10-y.o. TV has
that effect, and then you get either a broken picture or no picture at
all.
I don't know if that's related to your case though.
Now, I don't know what you meant by the order of connecting... Did you
mean the order of starting the slide-show program and connecting the
projector?
I don't know how iPad is designed, - but I wouldn't be surprised that
some app might behave differently depending on the peripheral hardware
connected.
HTH.
Cheers,
Igor
P. J. Alling Mon, 11 Mar 2019 12:38:49 -0700 wrote:
It could be that the one of the signal lines wasn't making good contact.
I don't know how the digital signal is being handled, if I were designing
a digital interface it wouldn't work that way but I didn't design it and
don't really want to try to find the spec and figure it out. I have
enough fun with legacy interfaces.
On the other hand the projector itself could be flaky. If it's USB it
supposed to be plug and play so connection sequence shouldn't make any
difference.
On 3/11/2019 3:29 PM, David J Brooks wrote:
Took my iPad over to the senious club today to ru through my Nfld
photos to make sure everything will work properly for my show on
Friday. I pluged the cable into the iPad then the projector, all of
the colours were either magenta or dark green. The head of the travel
club had to take a phone call and i looked at the projector to see if
there was any colour settings which there were not. Dont ask me why
but i decided as a last ditch effort to unplug the HDMI cable from the
iPad then re install then all of the colours came out normal or as
normal as can be on a projector.
I found that odd, does it really matter on the order one plugs things
into a projector.?? or was this just a fluky thing
Dave
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
