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sonido alsa alsaconf tarjeta sonido hp intel

**ANTECEDENTES**

Equipo HP Compaq 7700 smallformfactor con tarjeta de sonido integrada. Desde la versión 1.0.17-1 del paquete 'alsa-utils' ya no está disponible el comando 'alsaconf' [[http://packages.debian.org/changelogs/pool/main/a/alsa-utils/current/changelog.html | 1]], por lo que hay que buscarse la vida.

**SOLUCIÓN**

(Todo como root)

1. Como siempre listar los dispositivos integrados en placa:

  lspci -vv > /tmp/lspci.txt

**NOTA** Si no tenemos instalado el paquete lspci:

  aptitude update && aptitude install lspci

Contestar 's' o 'y' a todas las preguntas.

2. Echarle un ojo a la salida:

  nano /tmp/lspci.txt

En mi caso:

<code>
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
	Subsystem: Hewlett-Packard Company Device 2801
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 21
	Region 0: Memory at f0520000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [60] MSI: Mask- 64bit+ Count=1/1 Enable-
		Address: 0000000000000000  Data: 0000
	Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag- RBE- FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
		LnkCap:	Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; Disabled- Retrain- CommClk-
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
	Kernel driver in use: HDA Intel
</code>

3. Sinceramente la solución la tomé de internet, porque la linea final no aclara demasiado:

  Kernel driver in use: HDA Intel

Hay que habilitar el módulo 'snd-hda-intel':

  modprobe snd-hda-intel

4. Por último reiniciar alsa:

  /etc/init.d/alsa-utils restart

5. Y probar a reproducir un fichero de sonido, ver un video en youtube...