Hello - I have a persistent problem (after several rounds of updates) where my laptop plays sound through the internal speakers with a 3.5mm cord plugged in (just the plug), and Auto-Mutes the laptop speakers when headphones/3.5mm plug is unplugged from the headphone jack. This result is shown in alsamixer where the SPEAKER is “M/M” without a 3.5mm plug installed and vice versa.
The sound used to work normally and not be reversed and I’ve been living with the problem for some time so I can’t remember exactly when/why things went wrong.
My alsa-info data:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic_1 [HD-Audio Generic], device 0: CX20753/4 Analog [CX20753/4 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
I’m running Kernel 5.4.58-1 (problem persists in mutiple kernels such as 5.14 and 5.6), in the KDE Plasma desktop environment, on a Thinkpad E485 (Ryzen 5 2500u). Anyone run into this before or have suggestions for a fix?