This Acer Veriton N4640G/N6640G/N2510G desktops have 2 headphone
jacks(front and rear), and a separate Mic In jack.

The rear headphone jack is actually a line out jack but always silent
while playing audio. The front 'Mic In' also fails the jack sensing.
Apply the ALC269_FIXUP_LIFEBOOK to have all audio jacks to work as
expected.
Signed-off-by: Chris Chiu <chiu@endlessos.org>
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201222150459.9545-2-chiu@endlessos.orgSigned-off-by: Takashi Iwai <tiwai@suse.de>