OSD not displaying info without telemetry link with computer

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What steps will reproduce the problem?
1. If I plug in the OSD and copter without a link to APM Planner 2.0
2.
3.

What is the expected output? What do you see instead?
     I expect to see my location, battery, heading, etc...  If I establish a link everything works fine. I can even establish a link and then disconnect from the planner and the OSD works great. If I try to arm and use it without establishing a telemetry link for it will not work.

What version of the product are you using? On what operating system?

APM Planner 2.0
Current up to date copter firmware
MinimOSD extra 2.4 r702 firmware

Please provide any additional information below.

Original issue reported on code.google.com by twstee...@gmail.com on 4 Dec 2014 at 2:31

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There is no interaction between MinimOsd and Mission or APM Planner. I can help 
if you tell me how you power your APM and connection between APM and MinimOSD. 
Do you have 3DR Telemetery?

Original comment by osiarbay...@gmail.com on 9 Dec 2014 at 4:24

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I am powered the apm by the current sensor that came in the set. I am using 
telemetry radios and use the cable that came with the kit as well. 

It is plugged into the telemetry port on the flight controller and then y's off 
to the telemetry radio and osd. The osd is only connected with 3 cables, power, 
ground, and rx. 

Original comment by twstee...@gmail.com on 10 Dec 2014 at 12:48

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tried a bunch of stuff again tonight. if I arm the copter without the
telemetry radios hooked up...

-no gps coordinates

-no battery information

-no osd pannel switching via my channel 8

-no indication of number of satilites locked

-system warning messages of no GPS fix and battery low

The artificial horizon works as does the rssi, tilt degrees, and heading.

Just can't seem to figure out why some data displays but not all!

-Todd

Original comment by twstee...@gmail.com on 10 Dec 2014 at 5:55

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Did you enable OSD from Mission Planner?

Original comment by osiarbay...@gmail.com on 10 Dec 2014 at 5:33

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Yes, I have clicked that button countless times!

Original comment by twstee...@gmail.com on 10 Dec 2014 at 7:39

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I think you should also connect the Tx wire between APM and minimOSD when 
telemetry is not connected. The 3-wire connection between minimOSD and APM is a 
"slave" connection in which the Tx is sent to the APM from the telemetry radio, 
when telemetry is connected.

Original comment by emanuel....@gmail.com on 10 Dec 2014 at 11:35

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Do you mean the TX on the OSD and then connect that to the APM? So all 4
wires will be hooked up?

-Todd

Original comment by twstee...@gmail.com on 11 Dec 2014 at 2:38

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I am using Bluetooth telemetry, and connected MinimOsd to UART0 header. 
Everything works fine, maybe this will help with your situation.

http://copter.ardupilot.com/wp-content/uploads/sites/2/2012/12/apm.jpg

Original comment by osiarbay...@gmail.com on 11 Dec 2014 at 5:34

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Same problem here. firmware 726.
Nothing displayed until i make a radio connection to apm planner.
It's like minimiosd are not asking for the data

Original comment by arcosand...@gmail.com on 30 May 2015 at 4:31

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I have 4 wires hooked up and still nothing.  My setup works perfectly with 
arducam-osd but not with minimosd-extra.  I have tried R800 and 2.2 release and 
neither work.  Seems a bug within minimosd-extra not requesting data from APM.

Original comment by jmauger...@gmail.com on 25 Jun 2015 at 11:43

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Same issue with mine. Without 3dr telemetry, the minimOSD-extra does not show 
certain information e.g. keeps giving GPS warning and no satalites even though 
on APM the BLUE light is ON showing GPS connection.

Original comment by nabil.ma...@gmail.com on 1 Jul 2015 at 10:38

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I am having the same problem with my x350 pro and minimosd. Exactly the same, 
artificial horizon and flying modes and stuff works but most of the gps 
information does not work. Strangely I do get the groundspeed information when 
flying. 

Original comment by hschok...@gmail.com on 18 Jul 2015 at 11:23

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Same problem here. Voltage and Sats are not updated before I connect to MP. Can 
anybody confirm, that using arducam-osd intead of minimosd-extra fixes this 
problem?

Original comment by sten.uh...@googlemail.com on 4 Aug 2015 at 12:38

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ok, what I was able to figure out:

when I'm using old MinimOSD20 firmware, the minimOSD bootscreen says 
"requesting datastream". This is missing in minimOSD Extra.

To request something RX and TX must be connected. But then all parameters are 
updated correctly on my screen!!!
That kind of fixes the problem. But with both TX and TX connected one can not 
use a telemetry modul in parallel.

I think MinimOSD20 is doing the same here as a groundstation does when it 
connects to APM "requesting datastreams".

So, I think, the problem is my APM. APM should start sending all mavlink 
datastreams without an other device requesting it. 

But how to convince APM to do so?

OSD: Crius minimOSD
APM: APM mini - Arducopter 3.2.1
Ground: Missionplanner 1.3.30
Telementry: CriusBT

Original comment by sten.uh...@googlemail.com on 5 Aug 2015 at 2:02