This might be a kernel issue and not just a problem with Ubuntu since
I've had this exact same issue on an HP Envy 13 i5 Kaby Lake running
ALC295 on pretty much every distro. Back when I'd dual boot, I used to
boot into Windows before booting back into Linux to fix this problem and
it worked on every distro. Now I have a machine with only Linux on it
can't seem to make this issue go away. Here's a list of the audio
devices used.
Audio device: Intel Corporation Device 9d71 (rev 21) (prog-if 80)
Subsystem: Hewlett-Packard Company Device 82b9
Flags: bus master, fast devsel, latency 32, IRQ 132
Memory at a1328000 (64-bit, non-prefetchable) [size=16K]
Memory at a1310000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, snd_soc_skl
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
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https://bugs.launchpad.net/bugs/1648183
Title:
Crackling and popping sound when using headphones
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