[mythtv] mythmusic/audio questions with Shuttle XPC

[Martyn Weber]

On Saturday 01 March 2003 21:33, Michael J. Sherman wrote:
> Hi all,
>
> This weekend I've been installing MythTV from scratch on my new Shuttle
> SS40G XPC.  Week of experimenting with Myth on my main Linux box had me
> very prepared, but I seem to have hit a few snags with sound. 

Ditto

> 1) In MythMusic when playing the GUI freezes for periods of up to 45
> seconds.  The music will play flawlessly, but no GUI updates are drawn
> nor keyboard input taken for periods of 30-45 seconds.  I had this
> problem with MythMusic on my main Linux box, but I thought it went away
> when I installed the Alsa drivers.  Not such luck on my new box.  Same
> result.  Alsa drivers seem to be installed fine, and running aplay with
> a .WAV file does result in sound output.
Havent seen /heard this problem, did you install the lastest version of alsa 
or a prebuilt one?

>
> 2) Sound playback is odd when watching TV.  There is an echo.  It seems
> as though Myth is getting the sound off the sound card input fine, then
> playing it back okay.  But the sound also seems to pass right through to
> the output no matter how I set the mixer settings.  I'm thinking this is
> just some weird hardware quirk with the Shuttle motherboard.  Yes, I
> read the HOW-TO, and yes I set Line1 to Mute and Record.  I think it's a
> hardware thing.
>
On the SS40G, the correct option is to mute and set as source LINE not LINE1

Im having only two problems with my SS40G, the first is with mythmusic. When 
playing a CD directly I get a rythmic 'bump' type sound, like you used to get 
with a vinal record that had a slight scratch. This is accessing the CD 
digitally as I have no audio connection. Funnily enough if you importthe CD 
the resulting audio is 'perfect'

The second problem I have is with the TVout. When watching TV via video out 
with moderate action I see a lot of artefacts like a blocky ghost trail. For 
some reason this is only with TVout when using the VGA connector its OK. I 
tried this with a cloned X setup and a setup with only one display (relying 
on the bios to detect if the monitor is detected) and its both the same.

Any suggestions welcomed.

Thanks

Martyn

PS

I though the SS40G wsa based on the SiS 740 chip set not savage, the savage 
was on the SS50 and 51?