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PostPosted: Tue Nov 27, 2007 5:29 pm 
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Joined: Mon Nov 26, 2007 8:32 pm
Posts: 7
ok, so I made a post in the MythTV forum section on which type of capture card i should select, apparntly I had that capture card type selected. It doesnt work.

I did some searching, and found that if I run dmesg from the terminal it will give you information about your capture card. So I did that, the information I got wasn't pretty.

Code:
bttv0: Bt848 (rev 18) at 0000:01:0a.0, irq: 11, latency: 32, mmio: 0xf6aff000
bttv0: using:  *** UNKNOWN/GENERIC ***  [card=0,autodetected]
bttv0: gpio: en=00000000, out=00000000 in=00ff3fff [init]
tveeprom 1-0050: Huh, no eeprom present (err=-121)?
bttv0: tuner type unset
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: registered device video0
bttv0: registered device vbi0


It can't seem to figure out what type of capture card I have, other than to handle it with bttv driver. So I did some more searching and foudn that you can change that information (If i read correctly) to work with your capture card.

So I did the following commands like it said to in the sites:

Here and here

rmmod bttv
rmmod tuner
modprobe bttv card=14 tuner=2

once I ran the first command: rmmod bttv
I got the following error: ERROR: Module bttv is in use by dvb_bt8xx,bt878

I did some searching on google for that error, and found that all I have to do is unload those modules (I think). So I ran the command:
rmmod dvb_bt8xx
rmmod bt878

Once it successfully unloaded them, I re-ran the command: rmmod bttv, and I got success that time around. I then continued down the list of commands.

I got to: rmmod tuner, and it spit out an error. This error however, I do not know how to handle:
ERROR: Module tuner does not exist in /proc/modules
I have no idea how to fix it, or what its purpose is. So I just disregarded it for the time being. I then went on to the last command,
modprobe bttv card=14 tuner=2, with no error.

However it doesn't seem to work because the dmesg information is still the same
Code:
bttv0: Bt848 (rev 18) at 0000:01:0a.0, irq: 11, latency: 32, mmio: 0xf6aff000
bttv0: using:  *** UNKNOWN/GENERIC ***  [card=0,autodetected]
bttv0: gpio: en=00000000, out=00000000 in=00ff3fff [init]
tveeprom 1-0050: Huh, no eeprom present (err=-121)?
bttv0: tuner type unset
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: registered device video0
bttv0: registered device vbi0


Does anybody have any ideas on how I could fix this? I have tried searching more throughly this time, and I can't find anything else.

Any help would be greatly appreciated, I love learning new things.
Thanks in advanced,
Kyle


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PostPosted: Tue Nov 27, 2007 6:27 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
You really don't need to start a new topic every time like this. Following up in the same thread might help provide more context on what you've already tried.

At this point I think you need to go look at the V4L project site and check out known compatible/incompatible hardware.for the bttv driver. You may just be SOL with unsupported hardware. As a general note, it usually pays to check compatibility before buying hardware. ;-)


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PostPosted: Tue Nov 27, 2007 6:52 pm 
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Joined: Mon Nov 26, 2007 8:32 pm
Posts: 7
Its a supported card, I didn't buy it. I actually got it from an old PC my friend had.

The URL Verifying its compatible is here: http://www.mythtv.org/wiki/index.php/Video_capture_card

Any ideas? Seems other people can get ti working.


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PostPosted: Tue Nov 27, 2007 8:04 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
For reference from your other thread:
Quote:
I am having trouble selecting the Card Type for my Aimslab Video Highway Xtreme (VHX). It says for Probed info: BT848A Video ( *** UNKNOWN/GENE [bttv]

From the MythTV page:
Quote:
Non-standard internal audio-out pinout, but labeled on PCB. Requires BTTV Module parameters card=14 tuner=2

To set this up.
    1) Become root and edit the file /etc/mythtv/modules/bttv to add a line that says (and case matters!):
    Code:
    options bttv card=14 tuner=2

    2) Reboot.
    3) Check your log files again.

See the http://www.knoppmythwiki.org/index.php?page=LinuxTips or http://www.knoppmythwiki.org/index.php?page=EditAFile wiki pages if you don't know how to edit the file as root.


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PostPosted: Tue Nov 27, 2007 9:11 pm 
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Joined: Mon Nov 26, 2007 8:32 pm
Posts: 7
aweeesoommee! Thanks so much.. but I got another problem now.. haha

So I went and set everything up, the channels could be found (in my case only channel 3,im using a DirecTV receiver). However when I went back to MythFrontend all that displayed what a black screen and it appeard as if linux had frozen. I hit escape and it took about 20 seconds to respond. So I wondered if it would do the same on composite1,and I went ahead and set up mythtv to work with composite.. I went abck to frontend and it worked, but the video was very choppy and the computer was unresponsive. Also the video was delayed.

Was the video delayed because of the fact I was using Composite? and if so, how can I either fix this, or use coax for TV.

Thanks in advanced,
Kyle :)


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PostPosted: Tue Nov 27, 2007 9:45 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
The Troubleshooting pages cover issues like this...


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PostPosted: Tue Nov 27, 2007 10:00 pm 
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Joined: Mon Nov 26, 2007 8:32 pm
Posts: 7
ok thanks. But I have one more question, I feel like I should of asked this to begin with. My main point of mythTV is to not record tv shows or anything.. I just want to stream video from my capture card to my mac using the frontend on my mac, and using the capture card and backend on the linux machine. Is this even possible? I think it is. And if you don't mind, is there any way just to disable the whole recording thing and pause/rewind playback.


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