[mythtv-users] Problems viewing TV

Da Worm daworm at comcast.net
Sat Dec 25 17:14:05 UTC 2004


It seems it was my ivtv drivers failing to load properly.  After reading this thread:
I modified my modprobe.conf as follows (noting the PAL vs NTSC differences):

# ivtv modules setup
alias char-major-81 videodev
alias char-major-81-0 ivtv
alias char-major-81-224 ivtv
alias char-major-81-1 bttv
alias char-major-81-225 bttv
options bttv tuner=2 card=70 radio=1
install ivtv /sbin/modprobe --ignore-install tuner && /sbin/modprobe --ignore-install msp3400 && /sbin/modprobe --ignore-install videodev && /sbin/modprobe --ignore-install saa7115 && /sbin/modprobe --ignore-install saa7127 && /sbin/modprobe --ignore-install ivtv && /usr/bin/ivtvctl -d /dev/video0 -u 0xff
install bttv /sbin/modprobe ivtv && /sbin/modprobe --ignore-install bttv && /sbin/modprobe --ignore-install bt878

Now, when it works (see below) I can define either card alone, and it can be used to 
watch live TV, or define both and it uses the first defined (I presume if it were busy recording
it would fall over to the other, but haven't tested it).

The only problem I have now is that when mythbackend starts at boot, if I load
mythfrontend and select TV, I get an error about /dev/dsp being in use.  I can
then watch TV with no sound.  However, if I drop to a shell and restart mythbackend,
I no longer have whatever conflict there was with /dev/dsp and it works just fine.

Any clues?


*********** REPLY SEPARATOR  ***********

On 12/25/2004 at 11:16 AM Da Worm wrote:

>Hi, this is my first post on the list.
>My problem is that I can't get MythTV to even display live TV, much less
>record anything.  Here's some details:
>P4-2.4Ghz, 512 M RAM, Radeon 9500 Pro, 200G drive with 180G free for
>recording, PVR-250, PixelView Pro Rev 8E, 
>Irman, Matrix Orbital 4x25 VF with keypad
>Fedora Core 3, installed Myth via Jarod's guide
>I can watch TV with sound (via patch cable) using TVTime.  I can watch TV
>with no sound with xawtv.  Both of these
>are using the PixelView card.  On the PVR-250, I can cat /dev/video1 and
>play back the file with mplayer, although 
>with no sound.  With MythTV, when I select Watch TV, I get a blank screen
>for about ten seconds, then the menu 
>comes back.  I have tried with both cards defined in mythtvsetup and with
>each alone.  Starting the frontend from a shell 
>window, I see the following:
>[mythtv at mythtv -]$ mythfrontend
>2004-12-25 10:27:24 mythfrontend version: 0.16.20040906-1 www.mythtv.org
>2004-12-25 10:27:24 Enabled verbose msgs: important general
>2004-12-25 10:27:25 Registering Internal as a media playback plugin.
>2004-12-25 10:27:25 Registering MythDVD DVD Media Handler as a media
>2004-12-25 10:27:25 Registering MythDVD VCD Media Handler as a media
>Failed to run 'cdrecord --scanbus'
>2004-12-25 10:27:25 Registering MythMusic Media Handler as a media handler
>SIP listening on IP Address NAT address
>2004-12-25 10:27:28 Connecting to backend server: (try 1 of
>2004-12-25 10:27:36 ReadStringList timeout (quick)
>2004-12-25 10:27:36 Unexpected response to MYTH_PROTO_VERSION:
>2004-12-25 10:27:36 Changing from None to None
>I can understand the cdrecord failure: I don't have a burner.
>I've Googled for issues, and find this, which is identical.
>I didn't find a resolution for it, though.  
>Can anyone point me to a possible solution?
>  Jeff.
>mythtv-users mailing list
>mythtv-users at mythtv.org

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