Force pi to Analog/Digital output

[Narf03]

Hi all,

Assuming I have all HDMI/composite/3.5mm jack all plug in and the HDMI can take both audio and video. How do i force the Audio/Video to HDMI/Composite/3.5mm jack and disable all auto-detect ?

I did some testing, i manage to force both audio and video to HDMI by putting these setting in /boot/config.txt

Code: Select all

hdmi_safe=1
hdmi_force_edid_audio=1
hdmi_drive=2

how to i do for forcing
[Video -> HDMI][Audio -> 3.5mm jack]

and
[Video -> Composite][Audio -> 3.5mm jack]

thanks.

[Burngate]

http://elinux.org/RPi_config.txt

For [Video -> Composite][Audio -> 3.5mm jack]
hdmi_ignore_hotplug Pretends HDMI hotplug signal is not asserted so it appears a HDMI display is not attached

Code: Select all

hdmi_ignore_hotplug=1 Use composite mode even if HDMI monitor is detected

For [Video -> HDMI][Audio -> 3.5mm jack]
hdmi_drive chooses between HDMI and DVI modes

Code: Select all

hdmi_drive=1 Normal DVI mode (No sound)
hdmi_drive=2 Normal HDMI mode (Sound will be sent if supported and enabled)

- that's the nearest I can find

[Narf03]

Thanks, composite + 3.5mm jack worked.

And for the other, which I want video go hdmi and audio go analog doesn't work.

I use hdmi_drive=1 which is DVI mode, no sound go to both hdmi and analog.

[JSAMcFarlane]

As suggested here, try:

Code: Select all

hdmi_ignore_edid_audio=1

[klricks]

For audio do these commands:

Default mode auto sound:
sudo amixer cset numid=3 0

To force sound out the audio jack:
sudo amixer cset numid=3 1

To force sound out with the HDMI:
sudo amixer cset numid=3 2

Note that there is a space before the last number in each command....... numid=3[space]0

[Burngate]

Wow! 372 days between posts! Is this a record?

[texy]

First post too

Texy