2015-5-28 上午3:01 於 "Sander Smeenk" ssmeenk@freshdot.net 寫道：

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!

HDMI fail because drm/i915 fail

| ALSA lib pcm_pulse.c:752:(pulse_prepare) PulseAudio: Unable to create

stream: No such entity

This seem pulseaudio fail

[000d00h02m01s] [drm] Initialized i915 1.6.0 20141121 for 0000:00:02.0 on minor 0 [000d00h02m01s] snd_hda_intel 0000:00:03.0: enabling device (0000 -> 0002) [000d00h02m01s] snd_hda_intel 0000:00:1b.0: enabling device (0000 -> 0002) [000d00h02m01s] fbcon: inteldrmfb (fb0) is primary device -- [000d00h02m01s] iwlwifi 0000:05:00.0: enabling device (0000 -> 0002) [000d00h02m01s] sound hdaudioC1D0: autoconfig: line_outs=1 (0x1b/0x0/0x0/0x0/0x0) type:speaker [000d00h02m01s] sound hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [000d00h02m01s] sound hdaudioC1D0: hp_outs=1 (0x14/0x0/0x0/0x0/0x0) [000d00h02m01s] sound hdaudioC1D0: mono: mono_out=0x0 [000d00h02m01s] sound hdaudioC1D0: dig-out=0x1e/0x0 [000d00h02m01s] sound hdaudioC1D0: inputs: [000d00h02m01s] sound hdaudioC1D0: Internal Mic=0x19 [000d00h02m01s] sound hdaudioC1D0: Mic=0x18 [000d00h02m01s] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input10 [000d00h02m01s] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input11 [000d00h02m01s] iwlwifi 0000:05:00.0: loaded firmware version 25.17.12.0 op_mode iwlmvm -- [000d00h02m01s] Could not create debugfs 'i915_pipe_update_start' directory [000d00h02m01s] snd_hda_intel 0000:00:03.0: Cannot turn on display power on i915