LibreELEC-RPi2.arm-8.2.5 and AV Video Out

northstarex · July 24, 2018 at 10:14 PM

I installed the LibreELEC-RPi2.arm-8.2.5 image on a Pi3. The Pi3 is running on the analog video out signal.

With older versions, everything runs perfectly on the video out. Now with the new image, the movies rumble, the sound is too slow.

Is there a solution? Or is the analog video out port on the Pi3 no longer supported?

**HiassofT** · July 25, 2018 at 6:38 AM

Try adding this line to config.txt

Code

audio_pwm_mode=1

LE 8.2.5 comes with an updated firmware which should improve analog audio output quality, but needs a bit more GPU power. Setting audio_pwm_mode to 1 switches to the previous analog audio output implementation.

Details about that are in this thread Analogue audio redux - Raspberry Pi Forums

I'm using analog video on a RPi3B+ with LE9 testbuilds and it's working fine - but I also have a soundcard on my RPi so don't use analog audio out of the RPi.

so long,

Hias

northstarex · July 25, 2018 at 2:42 PM

Many Thanks

One more question: what do I have to adjust in the Analog Video Out? I've already managed that, but I'd rather ask again.

**HiassofT** · July 25, 2018 at 6:04 PM

There's not much to adjust. Just set the correct TV norm in config.txt (I use sdtv_mode=2 for PAL) and then use the video calibration in Kodi to compensate for the overscan.

so long,

Hias

northstarex · July 26, 2018 at 12:49 PM

Many Thanks. Everything worked.

I also added the Asprct ratio again. That is also important.

Maybe you should add future composite images with the composite video in the config.text. So the future user does not have to look far.

Look:

Code

################################################################################
# Onley for Composite Video
# activate sdtv_mode, sdtv_aspect and audio_pwm_mode
################################################################################

# TV standards for composite video output:

# sdtv_mode=2

# 0     Normal NTSC
# 1     Japanese version of NTSC – no pedestal
# 2     Normal PAL
# 3     Brazilian version of PAL – 525/60 rather than 625/50, different subcarrier

# aspect ratio for composite video output:

# sdtv_aspect=3

# 1     4:3
# 2     14:9
# 3     16:9

# for analog Audio:

# audio_pwm_mode=1

################################################################################
# End of Composite Video configuration
################################################################################

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