Robert and list,
On Aug 29, 2014 10:08 PM, "Robert M. Riches Jr."
wrote:
>
> Trying to get sound working on TinyCore 5, 64-bit kernel, 32-bit
> userspace with a Haswell i5-4690 CPU and an Asus H97M-Plus
> motherboard. My primary need is at least one channel of audio
> output from VLC.
>
> Kernel modules appear loaded. "aplay -l" and "aplay -L" show one
> card, ALC887-VD. Alsamixer appears to show an HDMI device with
> no controls and another device (ALC-887, I think) with controls.
> I unmuted and turned up the gain on master on that second device
> in order to get any sound output. Oh, and with aplay and a WAV
> file, I have to use "plughw:1", because "hw:1" refused to do
> single channel.
What kind of WAV file is it? What happens if you try a stereo 16 bit 44.1
kHz WAV file?
What happens if you use the default output device?
Why can't you use a newer kernel?
If it works with stereo and you need a mono signal out, can you fabricate a
different cable?
>
> With aplay on a WAV file, I get scratchy sounds (similar to
> pulsed white noise or someone scratching fingernails on a
> microphone screen) out of the headphone jack.
It would be interesting to look at /proc/asound/Intel files while playing
something that sounds scratchy. I have had scratchy sounds in the past when
the driver didn't properly deal with the bit rate and depth.
Also any related messages in the /var/log/syslog file?
>
> Googling didn't find anything that appeared relevant.
>
> Where could I find whether that kernel (3.8.13) supports Haswell
> HDMI audio and/or the H97M's audio?
What about just trying a newer kernel?
>
> Any pointers to tricks to maybe get the existing sound devices
> working?
>
> Buying another sound card is acceptable if necessary. Any
> suggestions for something < US$50 that is old enough that is sure
> to work with the 3.8.13 kernel? It will be feeding a church PA
> system but studio-quality sound is not necessary.
>
> Thanks in advance,
>
> Robert
>
>
> Details:
>
>
> Output of "uname -a":
>
> Linux box 3.8.13-tinycore64 #777 SMP Fri Oct 18 15:13:45 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
>
> Output of "aplay -l":
>
> List of PLAYBACK Hardware Devices
> card 1: Intel [HDA Intel], device 0: ALC887-VD Analog [ALC887-VD
Analog]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 1: Intel [HDA Intel], device 1: ALC887-VD Digital [ALC887-VD
Digital]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
>
> Output of "aplay -L":
>
> null
> Discard all samples (playback) or generate zero samples (capture)
> pulse
> PulseAudio Sound Server
> default:CARD=Intel
> HDA Intel, ALC887-VD Analog
> Default Audio Device
> sysdefault:CARD=Intel
> HDA Intel, ALC887-VD Analog
> Default Audio Device
> front:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Analog
> Front speakers
> surround40:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Analog
> 4.0 Surround output to Front and Rear speakers
> surround41:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Analog
> 4.1 Surround output to Front, Rear and Subwoofer speakers
> surround50:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Analog
> 5.0 Surround output to Front, Center and Rear speakers
> surround51:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Analog
> 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> surround71:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Analog
> 7.1 Surround output to Front, Center, Side, Rear and Woofer
speakers
> iec958:CARD=Intel,DEV=0
> HDA Intel, ALC887-VD Digital
> IEC958 (S/PDIF) Digital Audio Output
>
> Output of "lsmod":
>
> Module Size Used byNot tainted
> snd_seq_dummy 12288 0
> snd_seq_oss24576 0
> snd_seq_midi_event 12288 1 snd_seq_oss
> snd_seq36864 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> snd_seq_device 12288 3 snd_seq_dummy,snd_seq_oss,snd_seq
> snd_pcm_oss36864 0
> snd_mixer_oss 16384 1 snd_pcm_oss
> snd_hda_codec_realtek49152 1
> snd_hda_codec_hdmi 28672 1
> snd_hda_intel 28672 0
> snd_hda_codec 65536 3
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
> snd_hwdep 12288 1 snd_hda_codec
> snd_pcm57344 4
snd_pcm_oss,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
> snd_timer 20480 2 snd_seq,snd_pcm
> snd45056 12
snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
> soundcore 12288 1 snd
> snd_page_alloc 12288 2 snd_hda_intel,snd_pcm
> cpufreq_conservative12288 0
> cpufreq_userspace 12288 0
> cpufreq_stats 12288 0
> cpufreq_powersave 12288 0
