[mythtv] mythmusic/audio questions with Shuttle XPC
Martyn Weber
mythtv at blacksun.uk.com
Mon Mar 3 23:51:44 EST 2003
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?
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