Bug 105161
| Summary: | snd_hda_intel: Cirrus Logic CS4208 on mac mini late 2014 - jack detection inverted | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Aleksandr Mezin (mezin.alexander) |
| Component: | Sound(ALSA) | Assignee: | Jaroslav Kysela (perex) |
| Status: | NEW --- | ||
| Severity: | normal | CC: | szg00000, tiwai |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 4.2.1 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
alsa-info.sh output (with inv_jack_detect applied)
Test fix patch |
||
Is it really the inverted jack sense? That is, "Headphone Jack" is reported "off" for plug and "on" for unplug states? Disabled inv_jack_detect. No mic, no headphones, nothing plugged in.
$ amixer -c 1 contents
numid=17,iface=CARD,name='Headphone Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=16,iface=CARD,name='Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=19,iface=CARD,name='SPDIF Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=18,iface=CARD,name='Speaker Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=15,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
...
Headphones plugged in:
$ amixer -c 1 contents
numid=17,iface=CARD,name='Headphone Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=16,iface=CARD,name='Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=19,iface=CARD,name='SPDIF Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=18,iface=CARD,name='Speaker Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=15,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
...
As you can see, 'Headphone Jack' is inverted.
'Mic Jack' and 'SPDIF Jack' arent, but inv_jack_detect inverts them too, so it isn't a complete solution.
Well, the question is whether this is seen in all machines of this model, or it's specific only to your machine. It's possible to apply a fixup generically for the corresponding model, but I hesitate to do so unless it's proven that it hits to all that model... OK, I got another bug report showing the same problem, so the issue is present to this model generically, as it seems. The machine has no built-in mic, but the input is only from the audio-in jack, right? It seems that the audio-in jack doesn't give any sensing. What about SPDIF jack? Is there any jack that can be detected? If not, this should be disabled as well. FWIW, below is the test fix patch: it enables inv_jack_detect bit, and disables Mic and SPDIF jack detections. Created attachment 202781 [details]
Test fix patch
I don't have that machine anymore, so I can't test the patch If I remember correctly, there were only 2 jacks really - mic and headphone. And I am sure there weren't any built-in mic. Better ask somebody who has the same machine near at hand, though. |
Created attachment 188781 [details] alsa-info.sh output (with inv_jack_detect applied) When I plug in headphones, I hear sound from speaker. Pulseaudio mutes headphones, unmutes speaker. When I unplug headphones, speaker is muted and headphone unmuted. Enabling inv_jack_detect using hdajackretask seems to solve the problem.