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howtos:hardware:audio_and_snd-hda-intel [2013/01/25 22:29 (UTC)]
allend Added hardware entry
howtos:hardware:audio_and_snd-hda-intel [2014/08/10 03:04 (UTC)] (current)
allend [The fix] - Added multiple sound devices paragraph
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 Execute the command <code>lsmod | grep snd</code> in a terminal window. If there is a reference to ''snd_hda_intel'' in the output then the ''snd-hda-intel'' kernel module has been loaded as the driver for the controller chip and the codec chips on the HD-audio bus. Execute the command <code>lsmod | grep snd</code> in a terminal window. If there is a reference to ''snd_hda_intel'' in the output then the ''snd-hda-intel'' kernel module has been loaded as the driver for the controller chip and the codec chips on the HD-audio bus.
 +
 +Execute the command <code>aplay -l</code>  in a terminal window. If there are multiple sound devices then you will need to identify and set the sound device that you wish to use. See http://docs.slackware.com/howtos:hardware:sound_problems_on_slackware
 +===== The fix =====
  
 The ''snd-hda-intel kernel'' module tries to autodetect and configure your sound hardware, but this is not always successful. Some further configuration may help. The ''snd-hda-intel kernel'' module tries to autodetect and configure your sound hardware, but this is not always successful. Some further configuration may help.
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 It is probably easiest just to reboot at this stage to check if it works right. It is probably easiest just to reboot at this stage to check if it works right.
 +
 +If you have multiple sound devices, then you can specify the index values that are to be assigned to each device, where index=0 is the default. For example, if <code>aplay -l
 +**** List of PLAYBACK Hardware Devices ****
 +card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
 +  Subdevices: 1/1
 +  Subdevice #0: subdevice #0
 +card 1: Generic_1 [HD-Audio Generic], device 0: CX20756 Analog [CX20756 Analog]
 +  Subdevices: 1/1
 +  Subdevice #0: subdevice #0</code> then you could assign card 1 to index=0 with /etc/modprobe.d/snd-hda-intel.conf containing <code>alias char-major-116 snd
 +alias snd-card-0 snd-hda-intel
 +alias snd-card-1 snd-hda-intel
 +
 +options snd-hda-intel id=Generic_1 index=0
 +options snd-hda-intel id=Generic index=1</code>
 +
 +
  
 =====How to find the right options?===== =====How to find the right options?=====

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