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Pi 3 B+, TRRS question

Posted: Thu Oct 19, 2017 12:34 am
by Skitter
-So, I installed everything via HDMI because I got the wrong RCA cable for the TRRS port.
-Got the right cable, got Noobs to acknowledge the port, and reinstalled everything again.
-Only Noobs will use the TRRS port to output A/V.

Not sure what to do at this point. Also, I'm new to Pi and Linux. Am I going to need to wipe the SD, reinstall Noobs outright, and then reinstall from Vanilla while using analog to get it to default to the TRRS? Or even TRY to use the TRRS? I'm at a loss as to why I keep seeing post that indicate other users have gotten this port to work from scratch with Noobs and any distro loaded automatically.

Thanks,

Skitter

Re: Pi 3 B+, TRRS question

Posted: Thu Oct 19, 2017 8:46 pm
by fruitoftheloom
Skitter wrote:
Thu Oct 19, 2017 12:34 am
-So, I installed everything via HDMI because I got the wrong RCA cable for the TRRS port.
-Got the right cable, got Noobs to acknowledge the port, and reinstalled everything again.
-Only Noobs will use the TRRS port to output A/V.

Not sure what to do at this point. Also, I'm new to Pi and Linux. Am I going to need to wipe the SD, reinstall Noobs outright, and then reinstall from Vanilla while using analog to get it to default to the TRRS? Or even TRY to use the TRRS? I'm at a loss as to why I keep seeing post that indicate other users have gotten this port to work from scratch with Noobs and any distro loaded automatically.

Thanks,

Skitter

NoobS (and PINN) have a means of configuring the Video Output, it is in the ReadMe:

https://github.com/raspberrypi/noobs/bl ... /README.md

Re: Pi 3 B+, TRRS question

Posted: Thu Oct 19, 2017 11:50 pm
by klricks
Skitter wrote:
Thu Oct 19, 2017 12:34 am
-So, I installed everything via HDMI because I got the wrong RCA cable for the TRRS port.
-Got the right cable, got Noobs to acknowledge the port, and reinstalled everything again.
-Only Noobs will use the TRRS port to output A/V.

Not sure what to do at this point. Also, I'm new to Pi and Linux. Am I going to need to wipe the SD, reinstall Noobs outright, and then reinstall from Vanilla while using analog to get it to default to the TRRS? Or even TRY to use the TRRS? I'm at a loss as to why I keep seeing post that indicate other users have gotten this port to work from scratch with Noobs and any distro loaded automatically.

Thanks,

Skitter
IMO is is so much easier to do the stand alone install using Etcher instead of NOOBs.
This will automatically fall back to composite (TRRS) when HDMI is not connected.

For NOOBs you should be able to get to the config editor by pressing [Shift] during boot. I think you need to highlight the OS then open the editor? but not sure?
Make sure the force hotplug line is 'commented out by placing a # at the beginning of the line:

Code: Select all

#hdmi_force_hotplug=1
Look through the entire file and make sure that this line does not appear again anywhere else in the file.

As always make sure the HDMI cable in not in the RPi when booting.