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Hi, Mark, |
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On Tue, Feb 16, 2010 at 04:20:53PM -0800, Mark Knecht wrote: |
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> On Tue, Feb 16, 2010 at 6:54 AM, Alan Mackenzie <acm@×××.de> wrote: |
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> > Hi, gentoo, |
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> > I'm trying to get sound to sound on my new Gentoo box, following the |
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> > "Gentoo Linux ALSA Guide". Everything seems to be working fine, except |
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> > no sound is coming out of my loudspeakers. |
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> > I've checked the obvious things: the speakers are plugged in, switched |
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> > on and connected to the appropriate socket on my motherboard (the light |
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> > green one). |
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> > I have drivers for my motherboard's sound chips compiled into my kernel, |
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> > and they are correctly identified by alsamixer. With alsamixer I've |
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> > unmuted various things and turned up the volume. |
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> > madplay appears to play an mp3 file I have. Just that no actual sound |
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> > comes out. |
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> > One other strange thing: the titles under the "volume bars" in alsamixer |
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> > are very different from the ones in the document: Instead of "Master / |
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> > Headphone / Tone / Bass / Treble / 3D Contr / PCM", I've got " Master / |
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> > Headphon / Front / Front Mi / Surround / Center / LFE / Side / Line / |
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> > Mic / Mic Boos / S/PDIF / S/PDIF D / Beep". Why is this? In |
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> > particular, I'm missing the "PCM" volume bar which the documentation |
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> > says is so important to unmute. |
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> > What am I missing here? |
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> > Thanks in advance! |
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> > -- |
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> > Alan Mackenzie (Nuremberg, Germany). |
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> Did you get this worked out yet? |
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Not yet, no. |
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> VERY strange that you don't see pcm as a mixer control... |
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I've got alsamixer 1.0.21. Could it be that it choses its controls |
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according to the capabilities of the sound card? |
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> It's a bit hard to say much with so little info but I'll offer a |
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> couple of things: |
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> 1) IMO Alsa has never run so well when drivers are compiled into the |
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> kernel. I do a lot of audio in Linux and have always had the best |
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> results using modules. I would strongly suggest you give it a try... |
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Oh deity! I was hoping not to have to do this. I've never used modules |
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before, since they are (or were) an unnecessary complication, and might |
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introduce security risks. Maybe I'll have to read up on this. |
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> 2) Under /proc/asound/card0 (or whatever card you are using if you |
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> have more than 1) do you see any pcm directories? |
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# ls /proc/asound/card0 |
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codec#0 id oss_mixer pcm0c pcm0p pcm1p pcm2c |
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, so yes, I can see some pcm directories. |
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> 3) Post back a little more info? |
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> cat /proc/asound/cards |
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0 [SB ]: HDA-Intel - HDA ATI SB |
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HDA ATI SB at 0xfbcf8000 irq 16 |
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1 [HDMI ]: HDA-Intel - HDA ATI HDMI |
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HDA ATI HDMI at 0xfbffc000 irq 19 |
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> aplay -l |
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**** List of PLAYBACK Hardware Devices **** |
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card 0: SB [HDA ATI SB], device 0: ALC1200 Analog [ALC1200 Analog] |
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Subdevices: 1/1 |
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Subdevice #0: subdevice #0 |
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card 0: SB [HDA ATI SB], device 1: ALC1200 Digital [ALC1200 Digital] |
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Subdevices: 1/1 |
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Subdevice #0: subdevice #0 |
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card 1: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI] |
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Subdevices: 1/1 |
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Subdevice #0: subdevice #0 |
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> aplay -L |
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default:CARD=SB |
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HDA ATI SB, ALC1200 Analog |
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Default Audio Device |
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front:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Analog |
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Front speakers |
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surround40:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Analog |
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4.0 Surround output to Front and Rear speakers |
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surround41:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Analog |
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4.1 Surround output to Front, Rear and Subwoofer speakers |
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surround50:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Analog |
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5.0 Surround output to Front, Center and Rear speakers |
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surround51:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Analog |
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5.1 Surround output to Front, Center, Rear and Subwoofer speakers |
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surround71:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Analog |
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7.1 Surround output to Front, Center, Side, Rear and Woofer speakers |
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iec958:CARD=SB,DEV=0 |
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HDA ATI SB, ALC1200 Digital |
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IEC958 (S/PDIF) Digital Audio Output |
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null |
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Discard all samples (playback) or generate zero samples (capture) |
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hdmi:CARD=HDMI |
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HDA ATI HDMI, ATI HDMI |
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HDMI Audio Output |
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> lsmod |
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Opening /proc/modules: No such file or directory |
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> Good luck, |
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Thanks! |
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> Mark |
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-- |
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Alan Mackenzie (Nuremberg, Germany). |
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