mythtv stuff

Tue Mar 23 17:35:40 EST 2004

mkay,

if you're able to head sound when using xawtv, then alsa isnt' setup
correctly.  First, make sure the hardware in the back of the comptuer is
setup correctly (a cable from line-out on tuner to either line-in, or mic
on your sound card).

Run these commands from this URL:

http://www.mythtv.org/docs/mythtv-HOWTO-7.html#ss7.2

you can check your settings by running alsamixer.  If you used the mic
port instead of line-in, subsitute the command in the URL accordingly.

Next save it to a file:

# alsactl -f /etc/asound.state store

Now test the changes:

Run xawtv again.  Do you hear sound?  If not, then you're on the right
track.  Now run myth & watch livetv.  Does it work?  If you pause the show
('P'), do you still hear sound?

-Rob

> yes we are using ALSA, tuner is stock drivers, nVidia is using the
> advanced driver from the website "5336"
>
> On Tue, 2004-03-23 at 16:54, Robert Dege wrote:
>
> > Okay, your system appears to be fast enough with the tuner card taht
> > you're using.  Plus. your sound card should be sufficient since it's
> > AC97 compliant.  What software drivers are you using?
> >
> > Sound card - ALSA, or OSS?  (should be ALSA)
> >
> > Tuner - (should be stock kernel modules... tuner, bttv, etc.)
> >
> > nVidia - should be nvtv for TV-Out, however, that should be a concern once
> > the software is running.  For now, just do a `xvinfo` and make sure that
> > xv support is in your XWindows session.
> >
> > -Rob
> >
> > > Brooktree Corporation Bt878 Video Capture, VT8233/A/8235 AC97 Audio
> > > Controller, nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x, 256mb mem.,
> > > AMD Athlon(tm) XP 2400+, anything else?
> > >
> > > On Tue, 2004-03-23 at 16:11, Robert Dege wrote:
> > >
> > > > Please post the specs of your system:
> > > >
> > > > Proc, mem, tuner, sound card, and drivers used is a plus :)
> > > >
> > > > -Rob
> > > >
> > > > >    Speaking for my Dad(Pete) and myself(Jesse):
> > > > >
> > > > >      "You can not use xawtv to determine if your audio is working
> > > > > correctly, since xawtv is simply using the the analog sound patched
> > > > > through line-in to line-out. It doesn't need to digitize the sound
> > > > > unless you are using the recording function." - quoted from the
> > > > > MythTV troubleshooting website -
> > > > > http://www.mythtv.org/docs/mythtv-HOWTO-20.html#ss20.12
> > > > >
> > > > >      We've been hacking away at MythTV for almost a day now, and here's
> > > > > our conclusions on what's going on.
> > > > > 1. XAWTV works perfect. After we run XAWTV and start up MythTV the channel
> > > > > we are on is the channel we left off on with XAWTV. However, when we
> > > > > change the channels, everything hangs and crashes and we get those sound
> > > > > errors. I happen to think it's a problem with the database now, because we
> > > > > tried to remove our MythTV database and start from scratch, but when we
> > > > > try to restart MySQL, it fails, and we get tons of "InnoDB" errors in the
> > > > > MySQLd log.
> > > > > 2. Saying that, does this mean XAWTV and MythTV are directly connected?
> > > > > Would it just be crashing because the database isn't correct, and still
> > > > > giving us audio errors? Then after it crashes the sound stays running
> > > > > playing horrible static noise, and doesn't stop until we run XAWTV and
> > > > > close it. BUT! Running XAWTV after MythTV crashes screws up the XAWTV
> > > > > configuration and I have to manaually change it back to NTSC and US-Cable,
> > > > > so obviously they are connected some way.
> > > > > 3. I think it's obvious that something isn't set up right. Whether it's
> > > > > the database or the actual sound is what has us confused. Here's some of
> > > > > the errors we get when trying to restart MySQL, even when it says it
> > > > > starts, it still failed:
> > > > >
> > > > > 040323 15:18:50  mysqld started
> > > > > 040323 15:18:50  InnoDB: Out of memory in additional memory pool.
> > > > > InnoDB: InnoDB will start allocating memory from the OS.
> > > > > InnoDB: You may get better performance if you configure a bigger
> > > > > InnoDB: value in the MySQL my.cnf file for
> > > > > InnoDB: innodb_additional_mem_pool_size.
> > > > > InnoDB: The first specified data file ./ibdata1 did not exist:
> > > > > InnoDB: a new database to be created!
> > > > > 040323 15:18:50  InnoDB: Setting file ./ibdata1 size to 10 MB
> > > > > InnoDB: Database physically writes the file full: wait...
> > > > > 040323 15:18:50  InnoDB: Log file ./ib_logfile0 did not exist: new to be
> > > > > created
> > > > > InnoDB: Setting log file ./ib_logfile0 size to 5 MB
> > > > > InnoDB: Database physically writes the file full: wait...
> > > > > 040323 15:18:51  InnoDB: Log file ./ib_logfile1 did not exist: new to be
> > > > > created
> > > > > InnoDB: Setting log file ./ib_logfile1 size to 5 MB
> > > > > InnoDB: Database physically writes the file full: wait...
> > > > > InnoDB: Doublewrite buffer not found: creating new
> > > > > InnoDB: Doublewrite buffer created
> > > > > InnoDB: Creating foreign key constraint system tables
> > > > > InnoDB: Foreign key constraint system tables created
> > > > > 040323 15:18:52  InnoDB: Started
> > > > > /usr/libexec/mysqld: ready for connections
> > > > > 040323 15:19:04  /usr/libexec/mysqld: Normal shutdown
> > > > > 040323 15:20:42  mysqld started
> > > > > 040323 15:20:43  InnoDB: Out of memory in additional memory pool.
> > > > > InnoDB: InnoDB will start allocating memory from the OS.
> > > > > InnoDB: You may get better performance if you configure a bigger
> > > > > InnoDB: value in the MySQL my.cnf file for
> > > > > InnoDB: innodb_additional_mem_pool_size.
> > > > > 040323 15:20:43  InnoDB: Started
> > > > > /usr/libexec/mysqld: ready for connections
> > > > > 040323 15:22:33  /usr/libexec/mysqld: Normal shutdown
> > > > >
> > > > >      Any ideas guys?!?! Any help is much appreciated. Anyone wanna stop by
> > > > > and set us straight? Pizza's on us! Thanks, Jesse
> > > > >
> > > > >
> > > > >
> > > > > >
> > > > > > If you can hear audio when running xawtv, then your setup is incorrect
> > > > > > (unless you're using an MPEG2 encoding card).  You need to mute line-in,
> > > > > > and just set it to capture.
> > > > > >
> > > > > > Plus, your sound card needs to suport full duplex, else it won't work with
> > > > > > mythtv.
> > > > > >
> > > > > > -Rob
> > > > > >
> > > > > >> Hey Mark,
> > > > > >>   I am starting to noodle with mythtv, got it working but must have to
> > > > > >> do some tweaking because I am getting tons of messages in the command
> > > > > >> window bitching   about "Audio buffer overflow, audio data lost!" . I have
> > > > > >> sound but the sound and video are not matched, when watching tv (havent
> > > > > >> checked anything else), and when I exit the program, the sound still
> > > > > >> runs, can't find what's running it and have to reboot to kill the sound,
> > > > > >> or I found that starting xawtv then quitting that, kills the sound from
> > > > > >> the previous mythtv tv sound running. I remember you telling me a while
> > > > > >> back to make sure that the audio sampling rate is set to 48000, and it
> > > > > >> is. Any ideas?
> > > > > >> other than that, mythtv is too cool!
> > > > > >>
> > > > > >
> > > > > >
> > > > > >
> > > > > > Dege
> > > > > >
> > > > > > I'm just not up2date on my al-kee-hol-*hic* lingo
> > > > > > Although, I do have that slurring part down ;)
> > > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > Dege
> > > >
> > > > I'm just not up2date on my al-kee-hol-*hic* lingo
> > > > Although, I do have that slurring part down ;)
> > >
> >
> >
> >
> > Dege
> >
> > I'm just not up2date on my al-kee-hol-*hic* lingo
> > Although, I do have that slurring part down ;)
>

Dege

I'm just not up2date on my al-kee-hol-*hic* lingo
Although, I do have that slurring part down ;)