[mythtv-users] Sound issue that I can't seem to figure out

Harry Devine lifter89 at comcast.net
Mon Nov 3 01:13:48 UTC 2008


Harry Devine wrote:
> Still no luck.  After all of my Googling, everything says to add stuff 
> to modprobe.conf.  But modprobe.conf doesn't exist on Ubuntu apparently, 
> and I'm fairly new to Ubuntu.  Anyway, when I run lsmod, I don't see 
> anything for cx88_alsa, just cx88_dvb.  Wouldn't the following line from 
> /etc/modprobe.d/alsa-base be enough to load cx88_alsa?"
> options cx88_alsa index=-2
>
> Lastly, when I run dmesg and grep for cx88_alsa, I get the following errors:
>
> [   26.937230] cx88_alsa: disagrees about version of symbol 
> videobuf_dma_free
> [   26.937235] cx88_alsa: Unknown symbol videobuf_dma_free
> [   26.937268] cx88_alsa: disagrees about version of symbol cx88_core_put
> [   26.937270] cx88_alsa: Unknown symbol cx88_core_put
> [   26.937338] cx88_alsa: Unknown symbol videobuf_pci_alloc
> [   26.937361] cx88_alsa: disagrees about version of symbol cx88_core_irq
> [   26.937362] cx88_alsa: Unknown symbol cx88_core_irq
> [   26.937392] cx88_alsa: disagrees about version of symbol cx88_core_get
> [   26.937394] cx88_alsa: Unknown symbol cx88_core_get
> [   26.937518] cx88_alsa: disagrees about version of symbol 
> btcx_riscmem_free
> [   26.937519] cx88_alsa: Unknown symbol btcx_riscmem_free
> [   26.937593] cx88_alsa: disagrees about version of symbol 
> videobuf_dma_init
> [   26.937595] cx88_alsa: Unknown symbol videobuf_dma_init
> [   26.937646] cx88_alsa: disagrees about version of symbol 
> cx88_sram_channel_dump
> [   26.937648] cx88_alsa: Unknown symbol cx88_sram_channel_dump
> [   26.937678] cx88_alsa: disagrees about version of symbol 
> cx88_sram_channel_setup
>
> Here's my kernel info on Mybuntu 8.04.1:
> Linux hdevine-desktop 2.6.24-21-generic #1 SMP Tue Oct 21 23:09:30 UTC 
> 2008 x86_64 GNU/Linux
>
> Thanks for any help!
> Harry
>
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>
>   
One more bit of info:  I found a thread on the pcHDTV forums that 
suggested running modprobe -v, and I get a fatal error when I run it, 
and it corresponds to the dmesg info I listed earlier.  Here's what I get:

hdevine at hdevine-desktop:/etc/modprobe.d$ sudo modprobe -v cx88-alsa
insmod /lib/modules/2.6.24-21-generic/ubuntu/media/cx88/cx88-alsa.ko 
index=-2
FATAL: Error inserting cx88_alsa 
(/lib/modules/2.6.24-21-generic/ubuntu/media/cx88/cx88-alsa.ko): Unknown 
symbol in module, or unknown parameter (see dmesg)

That las "(see dmesg)" part is points to that dmesg output I listed above.

Thanks!
Harry



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