Question
I am building an Embedded system, we were running Android x86 4.2.2 which runs fine with some tweaks and drivers, however when running 4.3 I am running into a no sound issue. I have an asound.state file I generated from Ubuntu that i can load with alsa_ctl restore and works in 4.2.2 but in 4.3.1 branch I get no audio, here is the logcat dump when I try to listen to a ringtone:
https://stackoverflow.com/questions/20108976
italiano
english
français
española
中国
日本の
العربية
Deutsch
한국어
Português
RussianD/Ringtone( 3265): Successfully created local player
I/OMXCodec( 5285): [OMX.google.vorbis.decoder] allocating 4 buffers of size 32768 on output port
I/OMXCodec( 5285): [OMX.google.vorbis.decoder] allocated buffer 0xb7af0ff0 on output port
I/OMXCodec( 5285): [OMX.google.vorbis.decoder] allocated buffer 0xb7af1110 on output port
I/OMXCodec( 5285): [OMX.google.vorbis.decoder] allocated buffer 0xb7af1230 on output port
I/OMXCodec( 5285): [OMX.google.vorbis.decoder] allocated buffer 0xb7aeeea0 on output port
F/libc ( 5285): Fatal signal 11 (SIGSEGV) at 0x00000004 (code=1), thread 5290 (AudioOut_2)
I/DEBUG ( 1256): ***
*** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 1256): Build fingerprint: 'Generic-Plus/generic_plus/plus:4.3.1/JLS36I/eng.ubuntu.20131120.190444:eng/test-keys'
I/DEBUG ( 1256): Revision: '0'
I/DEBUG ( 1256): pid: 5285, tid: 5290, name: AudioOut_2 >>> /system/bin/mediaserver <<<
I/DEBUG ( 1256): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00000004
W/NativeCrashListener( 1486): Couldn't find ProcessRecord for pid 5285
I/DEBUG ( 1256): eax 00000000 ebx b62e8f20 ecx 00000000 edx 00000000
I/DEBUG ( 1256): esi b7adbba0 edi 00000004
I/DEBUG ( 1256): xcs 00000073 xds 0000007b xes 0000007b xfs 00000000 xss 0000007b
I/DEBUG ( 1256): eip b62e5ce7 ebp 00000006 esp b616ec88 flags 00010246
I/DEBUG ( 1256):
I/DEBUG ( 1256): backtrace:
I/DEBUG ( 1256): #00 pc 00003ce7 /system/lib/hw/audio.primary.x86.so (reset_mixer_state+7)
I/DEBUG ( 1256): #01 pc 0000341e /system/lib/hw/audio.primary.x86.so (out_set_parameters+238)
I/DEBUG ( 1256): #02 pc 0004e186 /system/lib/libaudioflinger.so (android::AudioFlinger::MixerThread::checkForNewParameters_l()+1094)
I/DEBUG ( 1256): #03 pc 0004e8c8 /system/lib/libaudioflinger.so (android::AudioFlinger::PlaybackThread::threadLoop()+632)
I/DEBUG ( 1256): #04 pc 0001ba59 /system/lib/libutils.so (android::Thread::_threadLoop(void*)+585)
I/DEBUG ( 1256): #05 pc 0001bc2e /system/lib/libutils.so (thread_data_t::trampoline(thread_data_t const*)+270)
I/DEBUG ( 1256): #06 pc 0000b674 /system/lib/libc.so (__thread_entry+132)
I/DEBUG ( 1256): #07 pc 0002ec65 /system/lib/libc.so (__pthread_clone+69)
I/DEBUG ( 1256): #08 pc ffffffff <unknown>
I/DEBUG ( 1256): #09 pc 000101af [heap]
I/DEBUG ( 1256): #10 pc 0000b04f [heap]
I/DEBUG ( 1256): #11 pc 0000acbf [heap]
I/DEBUG ( 1256): #12 pc 000072ef [heap]
I/DEBUG ( 1256):
I/DEBUG ( 1256): stack:
I/DEBUG ( 1256): b616ec48 0000000a
I/DEBUG ( 1256): b616ec4c 00000000
I/DEBUG ( 1256): b616ec50 00000000
I/DEBUG ( 1256): b616ec54 00000000
I/DEBUG ( 1256): b616ec58 00000000
I/DEBUG ( 1256): b616ec5c 00000000
I/DEBUG ( 1256): b616ec60 00000000
I/DEBUG ( 1256): b616ec64 00000000
I/DEBUG ( 1256): b616ec68 00000000
I/DEBUG ( 1256): b616ec6c 00000000
I/DEBUG ( 1256): b616ec70 00000000
I/DEBUG ( 1256): b616ec74 00000000
I/DEBUG ( 1256): b616ec78 00000000
I/DEBUG ( 1256): b616ec7c 00000000
I/DEBUG ( 1256): b616ec80 b7adbba0 [heap]
I/DEBUG ( 1256): b616ec84 b7690dc6 /system/lib/libc.so (atoi+6)
I/DEBUG ( 1256): #00 b616ec88 b7adbba0 [heap]
I/DEBUG ( 1256): b616ec8c b62e541f /system/lib/hw/audio.primary.x86.so (out_set_parameters+239)
I/DEBUG ( 1256): #01 b616ec90 00000000
I/DEBUG ( 1256): b616ec94 b62e6515 /system/lib/hw/audio.primary.x86.so
I/DEBUG ( 1256): b616ec98 b616eccc [stack:5290]
I/DEBUG ( 1256): b616ec9c 00000020
I/DEBUG ( 1256): b616eca0 b7af22d0 [heap]
I/DEBUG ( 1256): b616eca4 00000000
I/DEBUG ( 1256): b616eca8 b629a010
I/DEBUG ( 1256): b616ecac b7af2280 [heap]
I/DEBUG ( 1256): b616ecb0 00000001
I/DEBUG ( 1256): b616ecb4 b7adbc28 [heap]
I/DEBUG ( 1256): b616ecb8 00000004
I/DEBUG ( 1256): b616ecbc 00000000
I/DEBUG ( 1256): b616ecc0 b616ece0 [stack:5290]
I/DEBUG ( 1256): b616ecc4 b7647bc6 /system/lib/libc.so (free+6)
I/DEBUG ( 1256): b616ecc8 b75a2e4c /system/lib/libutils.so
I/DEBUG ( 1256): b616eccc b7580036 /system/lib/libutils.so (android::BufferedTextOutput::getBuffer() const+166)
I/DEBUG ( 1256): ........ ........
I/DEBUG ( 1256): #02 b616ed10 b7adbdb0 [heap]
I/DEBUG ( 1256): b616ed14 b7af2270 [heap]
I/DEBUG ( 1256): b616ed18 b616ed54 [stack:5290]
I/DEBUG ( 1256): b616ed1c b7adb2d4 [heap]
I/DEBUG ( 1256): b616ed20 ffffffea
I/DEBUG ( 1256): b616ed24 00800000
I/DEBUG ( 1256): b616ed28 b629a03c
I/DEBUG ( 1256): b616ed2c b77807f2 /system/lib/libaudioflinger.so
I/DEBUG ( 1256): b616ed30 b77807f9 /system/lib/libaudioflinger.so
I/DEBUG ( 1256): b616ed34 b7780807 /system/lib/libaudioflinger.so
I/DEBUG ( 1256): b616ed38 b77807dd /system/lib/libaudioflinger.so
I/DEBUG ( 1256): b616ed3c b77807e9 /system/lib/libaudioflinger.so
I/DEBUG ( 1256): b616ed40 b629a034
I/DEBUG ( 1256): b616ed44 b629a060
I/DEBUG ( 1256): b616ed48 b629a064
I/DEBUG ( 1256): b616ed4c 00000001
I/DEBUG ( 1256): ........ ........
I/BootReceiver( 1486): Copying /data/tombstones/tombstone_09 to DropBox (SYSTEM_TOMBSTONE)
I/ServiceManager( 1253): service 'media.audio_flinger' died
I/ServiceManager( 1253): service 'media.player' died
I/ServiceManager( 1253): service 'media.camera' died
I/ServiceManager( 1253): service 'media.audio_policy' died
W/AudioSystem( 3265): AudioFlinger server died!
W/IMediaDeathNotifier( 3265): media server died
E/MediaPlayer( 3265): error (100, 0)
W/AudioSystem( 1486): AudioFlinger server died!
W/AudioSystem( 1486): AudioPolicyService server died!
E/MediaPlayer( 3265): Error (100,0)
D/dalvikvm( 1486): GC_CONCURRENT freed 778K, 23% free 7827K/10144K, paused 1ms+3ms, total 33ms
I/mediaserver( 5356): ServiceManager: 0xb8baaaf0
I/AudioFlinger( 5356): Using default 3000 mSec as standby time.
I/CameraService( 5356): CameraService started (pid=5356)
E/CameraService( 5356): Could not load camera HAL module
I/AudioPolicyManagerBase( 5356): loadAudioPolicyConfig() loaded /system/etc/audio_policy.conf
E/audio_hw_primary( 5356): Failed to open /system/etc/mixer_paths.xml
I/AudioFlinger( 5356): loadHwModule() Loaded primary audio interface from Grouper audio HW HAL (audio) handle 1
I/AudioFlinger( 5356): HAL output buffer size 512 frames, normal mix buffer size 1024 frames
I/AudioMixer( 5356): found effect "Multichannel Downmix To Stereo" from The Android Open Source Project
E/MonoPipe( 5356): Failed to fetch local time frequency when constructing a MonoPipe (res = -32). getNextWriteTimestamp calls will be non-functional
I/AudioFlinger( 5356): Using module 1 has the primary audio interface
I/AudioFlinger( 5356): AudioFlinger's thread 0xb622c010 ready to run
I/audio_a2dp_hw( 5356): adev_open: adev_open in A2dp_hw module
I/AudioFlinger( 5356): loadHwModule() Loaded a2dp audio interface from A2DP Audio HW HAL (audio) handle 3
I/AudioFlinger( 5356): loadHwModule() Loaded usb audio interface from USB audio HW HAL (audio) handle 4
I/AudioPolicyService( 5356): Loaded audio policy from LEGACY Audio Policy HAL (audio_policy)
D/skia ( 2550): --- SkImageDecoder::Factory returned null
D/skia ( 2550): --- SkImageDecoder::Factory returned null
E/AudioService( 1486): Media server died.
E/AudioService( 1486): Media server started.
W/AudioPolicyManagerBase( 5356): setPhoneState() setting same state 0
Does any one have any suggestions? alsa_amixer outputs:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
And /proc/asound/cards:
0 [Generic ]: HDA-Intel - HD-Audio Generic
HD-Audio Generic at 0xfeb44000 irq 41
1 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfeb40000 irq 16
2 [Camera ]: USB-Audio - e-con's 3MP AF USB Camera
e-con System e-con's 3MP AF USB Camera at usb-0000:00:12.2-2.4, high speed
lsmod | grep snd output:
root@plus:/ # lsmod | grep snd
snd_usb_audio 97187 0 - Live 0x00000000
snd_usbmidi_lib 13865 1 snd_usb_audio, Live 0x00000000
snd_rawmidi 15365 1 snd_usbmidi_lib, Live 0x00000000
snd_seq_device 4709 1 snd_rawmidi, Live 0x00000000
snd_hda_codec_realtek 30372 1 - Live 0x00000000
snd_hda_codec_hdmi 23024 1 - Live 0x00000000
snd_hda_intel 27216 0 - Live 0x00000000
snd_hda_codec 122789 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel, Live 0x00000000
snd_hwdep 4225 2 snd_usb_audio,snd_hda_codec, Live 0x00000000
snd_pcm 61471 4 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live 0x00000000
snd_timer 14493 1 snd_pcm, Live 0x00000000
snd_page_alloc 6242 2 snd_hda_intel,snd_pcm, Live 0x00000000
alsa_play -l output:
root@plus:/ # alsa_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 1: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
Update
So running: dd if=/dev/urandom bs=8000 count=1 | aplay -D plughw:0,0 results in: aplay: main:661: audio open error: No such file or directory stdout: write error: Broken pipe 1+0 records in 0+0 records out 0 bytes transferred in 0.124 secs (0 bytes/sec)
So nothing working there, no surprise, but running the same command with device 1 i.e. plughw:1,0 results in sound successfully playing:
Playing raw data 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono
dd if=/dev/urandom bs=8000 count=1 | alsa_aplay -D plughw:1,0 <
1+0 records in
1+0 records out
8000 bytes transferred in 0.003 secs (2666666 bytes/sec)
Playing raw data 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono
So it seems I need to switch the default sound card to device 1 per comment below, but how do I switch the default card using alsa_ctl -f asound.state restore? if so how do I specify with this syntax in that file?
state.Generic {
control.1 {
iface CARD
name 'HDMI/DP,pcm=3 Jack'
value false
comment {
access read
type BOOLEAN
count 1
}
}
control.2 {
iface MIXER
name 'IEC958 Playback Con Mask'
value '0fff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
......
Solution
The segfault that you were getting in Android-x86 4.3 in the logcat trace you posted was due to missing checks for null pointer params being passed into various functions in hardware/libaudio/audio_hw.c
I posted a patch to fix the issue in the bug report: http://code.google.com/p/android-x86/issues/detail?id=1209#c2
OTHER TIPS
To make the USB audio device the first device, put the following into some .conf file in /etc/modprobe.d/:
options snd slots=snd-usb-audio,snd-hda-intel,snd-hda-intel
(On any normal Linux; Android might be different.)
