Hi,
After upgrading from 3.16.0-38-generic (Ubuntu Utopic) to 3.19.0-18-generic (Ubuntu Vivid) my audio stopped working. The issue appears to be in the snd-hda-intel driver.
'Alsa-info' is attached as gzip text, or online in paste bins: - 3.19, broken: https://8n1.org/10575/e5c1 - 3.16, working: https://8n1.org/10576/0631
With 3.19, tools fail like: | [sanders@msi:~] % aplay test.wav | Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo | ALSA lib pcm_pulse.c:752:(pulse_prepare) PulseAudio: Unable to create stream: No such entity | aplay: set_params:1297: Unable to install hw params: | [ .. ] | | [sanders@msi:~] % mplayer -ao alsa test.wav | Selected audio codec: Uncompressed PCM [pcm] | [ .. ] | AUDIO: 44100 Hz, 2 ch, s16le, 1411.2 kbit/100.00% (ratio: | 176400->176400) | [AO_ALSA] alsa-lib: pcm_pulse.c:752:(pulse_prepare) PulseAudio: Unable to create stream: No such entity | [AO_ALSA] Unable to set hw-parameters: Input/output error | Failed to initialize audio driver 'alsa' | Could not open/initialize audio device -> no sound.
And i have only one card listed in /proc/asound/cards, index 1 not 0: | [sanders@msi:~] % cat /proc/asound/cards | 1 [PCH ]: HDA-Intel - HDA Intel PCH | HDA Intel PCH at 0xf7b10000 irq 36
This all works perfectly fine with 3.16.
Please let me know when i can supply more information to dig into this!
Regards, -Sndr.