In my Ubuntu 14.04 32-bit system, whenever I connect speaker at back audio port of my system the audio is flicker(in case when volume is 100% of both system volume and application volume that playing audio e.g. music player).
And when volume decrease somewhat, 60% or less it's stop flicking.
But on front port is not happening, it working fine?
And in sound setting there is flicking like shown in image, it continuously changing from analog output and headphone and vice versa. That cause audio flicking.
and output of
0 [Generic ]: HDA-Intel - HD-Audio Generic HD-Audio Generic at 0xfeb44000 irq 43 1 [Generic_1 ]: HDA-Intel - HD-Audio Generic HD-Audio Generic at 0xfeb40000 irq 16
Is back port is defected or something else?