Sound doesn't work on panda on ICS

[Zach Pfeffer]

On https://android-build.linaro.org/builds/~linaro-android/tracking-panda-11.11-release/#build=3 line-out sound doesn't work on 4460 or Panda (4430).

[warmcat (andy-warmcat)]

There have been changes in mixer names come from upstream -->

'HS Left Playback' -> 'Headset Left Playback'
'HS Right Playback' -> 'Headset Right Playback'
'Aux/FM Stereo In' -> 'FM Stereo In'

[Abhishek Paliwal (abhishek-paliwal)]

Observed on tracking panda release:
https://android-build.linaro.org/builds/~linaro-android/tracking-panda-11.11-release/#build=4 as well.

[warmcat (andy-warmcat)]

Vishal the mixer names changed post 3.1 on tracking as described in #1

[vishal (vishalbhoj)]

Audio was disabled while upgrading the builds to android 2.3.7 . Audio is now working on the tip builds:

https://android-build.linaro.org/builds/~linaro-android/staging-panda/#build=105
https://android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=71

[Abhishek Paliwal (abhishek-paliwal)]

Recording using Speech recorder (can be found at : /data/data/com.android.speechrecorder/app_recordings) are not proper- only noise can be heard.

[warmcat (andy-warmcat)]

Abhishek, Panda is a bit unusual, input jack is like a "line in" not a microphone input. You need to use a 3.55 jack plug - 3.5mm jack plug stereo cable to hook, eg, your laptop headphone socket to the line-in and play music to record for test.

[vishal (vishalbhoj)]

seen on:

https://android-build.linaro.org/builds/~linaro-android/landing-panda-11.12-release/#build=3

[vishal (vishalbhoj)]

valid for:
https://android-build.linaro.org/builds/~linaro-android/staging-panda-11.12-release/#build=7
https://android-build.linaro.org/builds/~linaro-android/tracking-panda-11.12-release/#build=7

[warmcat (andy-warmcat)]

Can we clarify what the issue is in this bug?

Currently, record is indeed broken on one channel, one channel will record like untuned FM hiss, the other channel will record correctly though IF your input mixer settings are correct (see next paragraph). We're working on solving that (it's an inherited breakage from vanilla).

Also, 4460 and 4430 Panda hardware have the Line-in jack physically wired to different inputs on the twl6040. For 4430 Panda it goes to Headset mic and on 4460 Panda, FM analogue input. So, you need to adapt your mixer settings accordingly.

To help with that, I have added a patch that changes the name of the Alsa 'card' for the onboard sound device, for 4430 Panda it's "Panda" and for 4460 Panda it's "PandaES". You can use this to choose the correct mixer settings.

As I wrote a while back above, mixer names have changed in upstream kernel, you will also need to adapt them or your mixer settings won't be correct for playback.

On current tilt-android-tracking, on ICS, both onboard and HDMI audio output is workable at kernel.

[warmcat (andy-warmcat)]

Thanks to Vishal helping us with some tinyalsa tools, I confirmed onboard audio is working fine for output on ICS with current tilt-android-tracking. So I take from that lack of sound is just ICS userland regression, marking as invalid for us.

[vishal (vishalbhoj)]

Audio works on lineout on
https://android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=134

[Abhishek Paliwal (abhishek-paliwal)]

Neitehr HDMI out nor line out Audio working on
https://android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=135

[warmcat (andy-warmcat)]

I think Vishal has sorted out onboard audio today, I added a patch to get HDMI audio able to work, but I am not sure if there's something else going on with that.

[vishal (vishalbhoj)]

For Time being I am forcing audio to go through lineout .
http://review.android.git.linaro.org/#change,1352 should get audio onboard audio working.

[vishal (vishalbhoj)]

audio works on lineout on https://android-build.linaro.org/builds/~linaro-android/tracking-panda/#build=139