[mythtv-users] Audio, but No Volume Control

Tom Corcoran tomc at osits.com
Tue Dec 12 10:32:07 UTC 2006


Tom Corcoran wrote:
> Hi
>
> I have spent some time configuring my new MythTV box and am nearly ready 
> to start enjoying it bar one problem, I cannot control the volume!  The 
> volume is set at 'midrange' and when I turn up or down the volume via 
> hotkeys it makes no difference whatsoever.
>
> My build is based on a mobo with on board AC97 sound chip (Intel), a PVR 
> 500 MCE, a PCI nVidia FX5200 which hosts KDE based FC4 and MythTV .20. 
> All functions of Myth seem to work OK bar the Volume control in Live TV, 
> I am not sure about the volume in MP3 playback I will confirm.
>
> I had a loop back cable from audio out on the PVR500 to Line in on the 
> Sound card but have found this seems unnecessary as when it is removed 
> audio is still present.  I originally had a bt778 capture card installed 
> and have since upgraded it to the 500 so i am unsure if this is related 
> to the problem.
>
> When I run dmesg I see the following;
>
> tveeprom 1-0050: audio processor is CX25843 (idx 37)
> ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
> total)
> tveeprom 2-0050: audio processor is CX25843 (idx 37)
> ivtv1: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
>
> Any help would be greatly appreciated, Is any further data needed to 
> troubleshoot further?
>
> Many thanks for your time.
>
> TomC
>
>
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>
>   
Me Again

I forgot to mention that I have also played with all the controls in 
KMIX whilst watching LiveTV and they do not seem to impact on the volume 
at all, I have muted all controls and hey presto....I still have Live audio?

Thanks Again


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