no sound with WinTV HVR-980 - Help

no sound with WinTV HVR-980 - Help

[Pasquale]

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

Re: no sound with WinTV HVR-980 - Help

[Mauro Carvalho Chehab]

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

Re: no sound with WinTV HVR-980 - Help

[Mauro Carvalho Chehab]

Em 15-01-2011 13:15, Pasquale Riccio escreveu:
> How do I verify if I have the latest headers? do I use the Ubuntu repositories to update (apt-get)  or should I download a version from somewhere?

Sorry, I've no idea. I'm not an Ubuntu user, but it seems that they compile alsa on a separate
package, and they don't include the alsa headers at the kernel tree. The out-of-tree compilation
of media_build (and the deprecated mercurial tree) only looks for the alsa headers on the
kernel tree (where they should be). 

So, if Ubuntu shipping the alsa headers on a different directory or aren't providing the
alsa headers at all, the driver will compile, but, as the headers will be obsolete,
any alsa driver compiled from V4L/DVB won't work, as symbol definitions won't match.

One way to fix it is to get the latest kernel (2.6.37) from kernel.org and compile from it.
I think that there were no recent changes on em28xx that could affect HVR-980. So, using
the vanilla 2.6.37 should provide you audio, video and remote controller on this device.

Cheers,
Mauro

> Thank you for the reply,
> Pasquale
> 
> 
> 
> On Sat, Jan 15, 2011 at 9:58 AM, Mauro Carvalho Chehab <mchehab@redhat.com <mailto:mchehab@redhat.com>> wrote:
> 
>     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
> 
>