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PostPosted: Sun May 16, 2004 10:51 am 
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Joined: Sun May 16, 2004 10:35 am
Posts: 7
I am working to install on a:
P3 550 (Katmai)
PVR 350
ATI Rage 128

Everything goes well, until I get to the tuner section of the setup. When I try to add a tuner, the installation fails with a message can't open /dev/video and a segmentation fault. I have tried both i586 and default 586 packages.

The mythtv-backend.log lists two error messages:
error creating /.qt
can't open /dev/video

I have not tried using the XF86Config-4.pvr35... file yet as I just want to get it working on the monitor before sending output to TV.

My XF86Config-4 file seems to have detected the ATI card, and /dev/video exists. I am a relative Linux/Debian newbie and not sure how to fix this video device issue. It does not seem to be just a myth tv issue. LILO was not installed properly, so when I updated lilo.conf and ran /sbin/lilo, I got a message about no video card being available, although X starts up fine.

As a perhaps related note: I had to add the network interface entry (only lo was configured on installation) and the ALSA mixer cannot be found. So, this seems to be more of a device configuration issue in Knoppix/Debian than a MythTV issue.

Any help would be greatly appreciated.


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PostPosted: Sun May 16, 2004 11:03 am 
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Location: Fontana, Ca
You can ignore the .qt error. When the system boots do you see where it states which tuner is found? While the i586 debs should work w/ a P3, the P3 is an i686 class processor(as root install-i686-l). The sample file for the 350 is just that, a sample in order to get TV out work, follow the instructions on the IvyTV wiki or the post here on the forum.

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PostPosted: Sun May 16, 2004 12:04 pm 
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I updated to the i686 debs, and re-ran the configuration. When I try to configure the tuner, I get the following messages in xterm:
Couldn't open /dev/video to probe its inputs
Segmentation Fault

When I look in /var/log/messages, I see mtyhtv-kernel messages which refer to vga16fb and fb0, but nothing that refers to tuner

In mythtv-backend.log, I see the following:
/dev/video: no such device
Couldn't find input: Television on card
Cable is defined, but isn't attached to cardinput


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PostPosted: Sun May 16, 2004 12:09 pm 
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Noticed one more thing --above the could not open /dev/video for input message, there are two messages:
mythtv: could not connect to socket
mythtv: Connection refused

It is configured to use 127.0.0.1 and the loopback adapter seems to be working.


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PostPosted: Sun May 16, 2004 12:09 pm 
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Location: Fontana, Ca
You didn't answer my question.

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PostPosted: Sun May 16, 2004 12:16 pm 
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I don't see what tuner is found. I looked in /var/log/messages and did not find a reference to tuner, and I looked in mythtv-backend.log and reported the messages relating to the tuner. Was there another question or is there some other place I can find out which tuner is found?


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PostPosted: Sun May 16, 2004 12:19 pm 
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Location: Nashville, TN
if /var/log/messages has no references to tuner then something is definitely wrong. do lsmod | grep ivtv if nothing shows up ivtv is not loading and that is the device driver for the pvr350, which also takes care of making /dev/video work (for a short explanation).


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PostPosted: Sun May 16, 2004 12:22 pm 
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OK, thank you for being patient with me. lsmod | grep ivtv returns nothing, so I assume I need to get ivtv from source forge, install and follow the instructions of the other posts for configuring ivtv with the pvr350.


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PostPosted: Sun May 16, 2004 12:29 pm 
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Location: Fontana, Ca
IvyTV is installed, if your card isn't being detected then that is your problem. Do
Code:
lspci | grep con
you should see something like this:
Quote:
01:06.0 Multimedia video controller: Internext Compression Inc: Unknown device 0016 (rev 01)
or
Quote:
01:08.0 Multimedia video controller: Internext Compression Inc iTVC15 MPEG-2 Encoder (rev 01)
If you don't see either, something is wrong with your card, make sure it is well seated or try another PCI slot.

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cesman

When the source is open, the possibilities are endless!


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PostPosted: Sun May 16, 2004 12:33 pm 
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Yes, when I do lspci | grep con I do get the entry for the Multimedia video controller, so the card is being found.


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PostPosted: Sun May 16, 2004 12:52 pm 
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Reboot the system, if you're using bootsplash, press <F2> for verbose mode. Do you see where it states "Checkinf for Multimedia video controller"? It should state "KnoppMyth found" and what it found. Does it?

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PostPosted: Sun May 16, 2004 1:20 pm 
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Yes, I see this message as it is booting, although it is not logged to /var/log/messages. It says:
KnoppMyth found Internext Compression Inc iTVC15 MPEG-2 Encoder (rev 01)


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PostPosted: Sun May 16, 2004 9:15 pm 
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Odd... As root:
Code:
ls /lib/modules/ivtv-fw-*
Do you see:
Quote:
/lib/modules/ivtv-fw-dec.bin /lib/modules/ivtv-fw-enc.bin
If not
Code:
ivtvfwextract.pl /usr/local/lib/ivtv/driver/pvr250_17_21226.exe
If the firmware is there, try another PCI slot.

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cesman

When the source is open, the possibilities are endless!


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PostPosted: Sun May 16, 2004 9:59 pm 
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Location: Arlington, MA
BTW - Any particular reason why we're still using this older version of the PVR-x50 firmware?


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PostPosted: Mon May 17, 2004 3:20 am 
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Other than the fact it works :), that is the version I'm authorized to distribute with KnoppMyth. Is there a reason to use a newer version(other than the fact it is newer)?

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