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No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Wed Sep 08, 2021 10:23 pm
by markzvo
I cannot get QLC+ to output audio on the Pi 4 to the 3.5mm headphone jack as I have with previous versions. Sound will output to an HDMI monitor OK.
I have used raspi-config to set the default audio out to the headphone jack and set the volume with alsamixer.
However still no sound from QLC+ to the 3.5mm headphone jack... I have used the web interface to set the audio device to "Default device", "default", and tried every option - none of them will work.
If I play the file using aplay (aplay /home/pi/wavsound.wav) from the command line after exiting QLC+, the sound file plays correctly through the 3.5mm output as intended so I believe the issue is with QLC+.
(I have used a Creative Soundblaster Play3 USB audio adapter and this works with QLC+)
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Sat Jan 29, 2022 8:38 pm
by markzvo
Just wondering if anyone has seen a solution to this issue
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Tue Nov 15, 2022 2:57 am
by markzvo
Perhaps this is due to the Qt libraries in use for QLC+ having an incompatibility with the Pi 4?
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Fri Jan 06, 2023 11:43 am
by illuminati235
Hey, I'm having the same exact issue.
aplay works fine, but no audio on QLC+ with any of the output configurations.
Is there any solution?? Please help!
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Fri Jan 06, 2023 5:42 pm
by mcallegari
I haven't checked this issue myself, but a quick google search spotted this:
https://forums.raspberrypi.com/viewtopic.php?t=263942
Perhaps this do the trick?
Code: Select all
1) raspi-config
2) -> Advanced Options -> AA pi 4 video Output -> disable 4kp60
3) save
4) reboot
or
Code: Select all
`raspi-config` -> `Advanced Options` -> `A4 Audio Force audio out through HDMI or 3.5mm jack`. Select `1 Headphones`
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Mon Jan 09, 2023 8:05 am
by illuminati235
Hi Massimo,
thanks for your answer, but this doesn't solve the problem. I've already set the right output device there.
I think the problem is within QLC+, bc sound output from the command line (aplay) works fine...
kind regards
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Tue Jan 10, 2023 9:51 pm
by markzvo
illuminati235 wrote: ↑Mon Jan 09, 2023 8:05 am
I think the problem is within QLC+
I think it is a problem with Qt from what I have read. I have done a lot of google searches on this too. As stated the OS outputs from 3.5mm jack perfectly as expected.
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Wed Jan 11, 2023 8:41 am
by mcallegari
Qt uses gstreamer on Linux
Perhaps this is a gstreamer issue rather than Qt's.
I would test a gstreamer playback from command line first (using audio sinks)
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Sat May 20, 2023 2:48 pm
by mcallegari
Update: I just checked and figured out how to output audio on the 3.5mm jack connector (no issue on QLC+ btw)
I have updated the official RPi user guide PDF with an additional FAQ
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Wed Aug 02, 2023 2:39 am
by markzvo
Excellent - is this just for 4.12.7? Or will it work on 4.12.6? I cannot update to 4.12.7 until November
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Wed Aug 02, 2023 7:08 am
by mcallegari
I think it can be applied to the previous image as well.
Just check the additional FAQ note in the PDF manual of the reserved area.
Re: No audio output on 3.5mm headphone jack from QLC+ on Pi 4
Posted: Thu Sep 28, 2023 2:32 pm
by markzvo
mcallegari wrote: ↑Wed Aug 02, 2023 7:08 am
I think it can be applied to the previous image as well.
Just check the additional FAQ note in the PDF manual of the reserved area.
I can confirm this works on previous versions - I am just surprised with myself because I thought I tried everything!
BUT NOW with Raspberry Pi 5, there is no 3.5mm audio output! So I will have to go back to using my Creative Labs Sound Blaster Play! 3 External USB Sound Adapter - which does work very well with QLC+ so it will be OK