1 of the speakers not working among 3 (Hp Notebook 15)

I have an old laptop (with dual boot) with two speakers on the front and one big speaker at the back.
In windows all the speakers work and the sound is loud, but in linux -based distros only the front two speakers work.

** aplay -l gives this output.

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC3227 Analog [ALC3227 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

I even tried using hdajackretask but it didn’t work, alsamixer doesn’t detect the rear speaker.
what might be the issue?

1 Like