Latest working kernel version: 2.6.26 (I believe) Earliest failing kernel version: 2.6.27-rc5 (as far as I have tested) Distribution: Fedora Rawhide Hardware Environment: Dell Latitude D830 Software Environment: Problem Description: Despite all mixers at 100% and unmuted, the speakers and headphone jacks produce no output. Steps to reproduce: Boot; try playing audio; enjoy sweet silence
dmesg shows the following upon modprobing snd-hda-intel: HDA Intel 0000:00:1b.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21 HDA Intel 0000:00:1b.0: setting latency timer to 64 ALSA sound/pci/hda/hda_intel.c:2083: chipset global capabilities = 0x4401 ALSA sound/pci/hda/hda_intel.c:758: codec_mask = 0x3 ALSA sound/pci/hda/hda_codec.c:2350: hda_codec: model 'dell-m43' is selected for config 1028:1fe (Dell Precision) ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 0a pin config 0321101f ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 0b pin config 03a11020 ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 0c pin config 90a70330 ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 0d pin config 90170310 ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 0e pin config 400000fe ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 0f pin config 400000ff ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 14 pin config 400000fd ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 16 pin config 40f000f9 ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 17 pin config 400000fa ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 18 pin config 400000fc ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 21 pin config 0144131f ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 22 pin config 40c003f8 ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 1f pin config 00000000 ALSA sound/pci/hda/patch_sigmatel.c:1845: hda_codec: pin nid 20 pin config 00000000 ALSA sound/pci/hda/hda_codec.c:3021: autoconfig: line_outs=1 (0xd/0x0/0x0/0x0/0x0) ALSA sound/pci/hda/hda_codec.c:3025: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) ALSA sound/pci/hda/hda_codec.c:3029: hp_outs=1 (0xa/0x0/0x0/0x0/0x0) ALSA sound/pci/hda/hda_codec.c:3030: mono: mono_out=0x0 ALSA sound/pci/hda/hda_codec.c:3038: inputs: mic=0xb, fmic=0xc, line=0x0, fline=0x0, cd=0x0, aux=0x0 ALSA sound/pci/hda/patch_sigmatel.c:2254: stac92xx_add_dyn_out_pins: total dac count=2 ALSA sound/pci/hda/patch_sigmatel.c:2376: dac_nids=1 (0x10/0x0/0x0/0x0/0x0) ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Surround Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Center Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave LFE Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Side Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Headphone Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Headphone Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Speaker Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave External Speaker Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Speaker2 Playback Volume, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Surround Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Center Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave LFE Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Side Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Headphone Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Headphone Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Speaker Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave External Speaker Playback Switch, skipped ALSA sound/pci/hda/hda_codec.c:1127: Cannot find slave Speaker2 Playback Switch, skipped ALSA sound/pci/hda/hda_intel.c:1404: azx_pcm_prepare: bufsize=0x10000, format=0x4011 ALSA sound/pci/hda/hda_codec.c:716: hda_codec_setup_stream: NID=0x12, stream=0x1, channel=0, format=0x4011 ALSA sound/pci/hda/hda_intel.c:1404: azx_pcm_prepare: bufsize=0x10000, format=0x4011 ALSA sound/pci/hda/hda_codec.c:716: hda_codec_setup_stream: NID=0x12, stream=0x1, channel=0, format=0x4011 ALSA sound/pci/hda/hda_intel.c:1404: azx_pcm_prepare: bufsize=0x10000, format=0x4011 ALSA sound/pci/hda/hda_codec.c:716: hda_codec_setup_stream: NID=0x1f, stream=0x5, channel=0, format=0x4011 ALSA sound/pci/hda/hda_codec.c:716: hda_codec_setup_stream: NID=0x10, stream=0x5, channel=0, format=0x4011 ALSA sound/pci/hda/hda_intel.c:1404: azx_pcm_prepare: bufsize=0x10000, format=0x4011 ALSA sound/pci/hda/hda_codec.c:716: hda_codec_setup_stream: NID=0x1f, stream=0x5, channel=0, format=0x4011 ALSA sound/pci/hda/hda_codec.c:716: hda_codec_setup_stream: NID=0x10, stream=0x5, channel=0, format=0x4011 ALSA sound/pci/hda/hda_codec.c:728: hda_codec_cleanup_stream: NID=0x12 ALSA sound/pci/hda/hda_codec.c:728: hda_codec_cleanup_stream: NID=0x12 ALSA sound/pci/hda/hda_codec.c:728: hda_codec_cleanup_stream: NID=0x10 ALSA sound/pci/hda/hda_codec.c:728: hda_codec_cleanup_stream: NID=0x1f ALSA sound/pci/hda/hda_codec.c:728: hda_codec_cleanup_stream: NID=0x10
The kernel message looks OK. All these are just information, neither errors nor warnings. Could you try to run alsa-info.sh with --no-upload option on both working and non-working kernels, and attach the generated files to here? The script is found in http://www.alsa-project.org/alsa-info.sh
Strangely, after rebooting last night I've been unable to reproduce the issue. I've even tried suspending and resuming and the problem still has come up. Sorry about the noise. Closing for now but I'll let you know if I manage to reproduce it again.