[mythtv-users] OT: no spdif using alsa (see error)

Billy Macdonald whmac33 at yahoo.com
Wed Mar 24 00:53:20 EST 2004


    Here is a vague answer.  I think I had the same problem.  If I remember
correctly the spdif device is device 2 on the audio but the alsa files has it
hardcoded as device 1.  There is some file in the alsa sources where I had to
change a device=1 to device=2 I think.  I think it was called nforce something
or nvidia something....  I switched motherboards since then so that the faster
processor was my everday PC since it was being under utilized.

    Oh crap that's a usless answer.  Ok, found the thread that I used to fix my
problem, which I think was the same problem you're having.  Look at Takashi's
fix near the bottom for the NFORCE.conf.  Of course it didn't help the person
with the problem in the thread but I know it fixed one of my ALSA issues.

--- John Sturgeon <john at sturgeonfamily.com> wrote:
> Hello all,
> I understand this is slightly off topic, but this audience might be one 
> of the most experienced/knowledgable around when it comes to audio/video 
> & Linux.
> Everything that I have working in MythTV so far I love; however, some 
> frustrations still lurk.
> I'm trying to get audio out of my spdif output and I get the following 
> error:
> ALSA lib pcm_hw.c:1056:(snd_pcm_hw_open) open /dev/snd/pcmC0D1p failed: 
> No such device
> $ll /dev/snd/pcmC0D1p
> crw-rw-rw-  1 root root 116, 17 Mar 19 23:39 /dev/snd/pcmC0D1p
> $cat /dev/snd/pcmC0D1p
> cat: /dev/snd/pcmC0D1p: No such device
> Here is (what I hope to be) the important hardware/software information:
> Shuttle XPC: SN41G2
> On Board Audio: nForce 2
> OS: Fedora Core
> here is my modules.conf:
> [root at localhost AverageJoe]# cat /etc/modules.conf
> path[toplevel]=/lib/modules/`uname -r`/updates
> # default path
> path[toplevel]=/lib/modules/`uname -r`
> alias char-major-81 bttv
> alias usb-controller usb-ohci
> alias usb-controller1 ehci-hcd
> alias ieee1394-controller ohci1394
> alias eth0 nvnet
> alias usb-interface usb-ohci
> # nvidia kernel module
> alias char-major-195 nvidia-1.0-4363
> # --- BEGIN: Generated by ALSACONF, do not edit. ---
> # --- ALSACONF verion 1.0.3 ---
> alias char-major-116 snd
> alias char-major-14 soundcore
> alias sound-service-0-0 snd-mixer-oss
> alias sound-service-0-1 snd-seq-oss
> alias sound-service-0-3 snd-pcm-oss
> alias sound-service-0-8 snd-seq-oss
> alias sound-service-0-12 snd-pcm-oss
> alias snd-card-0 snd-intel8x0
> alias sound-slot-0 snd-intel8x0
> # --- END: Generated by ALSACONF, do not edit. ---
> Any help would be greatly appreciated.
> Thank You,
> John Sturgeon <><
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