Volume is fixed, using no external DAC just headphone connection. Have multiple RPi when running without problem on software version 3.546 but a few have updated to 3.569 with all i am unable to increase or decrease volume
in the version 3.569 there is a new kernel, for supporting RPi5
in this new kernel the mixer name for the onboard Analog output has a different name.
Please enter playback options, select again the onboard analog output, save and reboot.
This should fix your problem and volume control should work again
Thanks Volumio and Dario, that did the trick it now works. I had to completely reboot the device.
I had 2 devices that had a touch display connected, so i wasn’t able to switch to HDMI so I had to set it to I2S and select a random device, then save then reboot then back to headphone then save and reboot.