Re: no sound with WinTV HVR-980 - Help

[Mauro Carvalho Chehab <mchehab@redhat.com>]

Em 15-01-2011 03:03, Pasquale escreveu:
> Hello I am running the following OS "Ubuntu 10.04.1 LTS" 
> with Mythtv I have a WinTv HVR-980 and hvae no sound with 
> video see errors below any assistance would be appreciated.
> 
> I should have a /dev/dsp1 but I can not find it?
> 
> 
> [   28.349674] em28xx #0: Config register raw data: 0xd0
> [   28.350444] em28xx #0: AC97 vendor ID = 0xffffffff
> [   28.350819] em28xx #0: AC97 features = 0x6a90
> [   28.350822] em28xx #0: Empia 202 AC97 audio processor detected
> [   28.588908] em28xx #0: v4l2 driver version 0.1.2
> [   28.676311] em28xx #0: V4L2 video device registered as /dev/video0
> [   28.676315] em28xx #0: V4L2 VBI device registered as /dev/vbi0
> [   28.692112] usbcore: registered new interface driver em28xx
> [   28.692117] em28xx driver loaded
> [   28.706196] em28xx_alsa: disagrees about version of symbol snd_pcm_new
> [   28.706201] em28xx_alsa: Unknown symbol snd_pcm_new
> [   28.706319] em28xx_alsa: disagrees about version of symbol snd_card_register
> [   28.706322] em28xx_alsa: Unknown symbol snd_card_register
> [   28.706438] em28xx_alsa: disagrees about version of symbol snd_card_free
> [   28.706440] em28xx_alsa: Unknown symbol snd_card_free
> [   28.706673] em28xx_alsa: disagrees about version of symbol snd_pcm_lib_ioctl
> [   28.706675] em28xx_alsa: Unknown symbol snd_pcm_lib_ioctl
> [   28.706988] em28xx_alsa: disagrees about version of symbol snd_pcm_set_ops
> [   28.706990] em28xx_alsa: Unknown symbol snd_pcm_set_ops
> [   28.707209] em28xx_alsa: disagrees about version of symbol
> snd_pcm_hw_constraint_integer
> [   28.707212] em28xx_alsa: Unknown symbol snd_pcm_hw_constraint_integer
> [   28.707657] em28xx_alsa: disagrees about version of symbol snd_card_create
> [   28.707660] em28xx_alsa: Unknown symbol snd_card_create
> [   28.707766] em28xx_alsa: disagrees about version of symbol
> snd_pcm_period_elapsed
> [   28.707768] em28xx_alsa: Unknown symbol snd_pcm_period_elapsed
> [   28.910841] em28xx #0/2: xc3028 attached
> [   28.910844] DVB: registering new adapter (em28xx #0)
> [   28.911226] Successfully loaded em28xx-dvb

Or you have two em28xx drivers or you compiled em28xx_alsa against a different
header than the ones used to compile the alsa modules on your distro.

It is reported that (some versions) Ubuntu ships the wrong alsa headers
with their kernel header package.

Cheers,
Mauro