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error creating /.qt and can't open /dev/video http://forums.linhes.org/viewtopic.php?f=1&t=1466 |
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Author: | s_hainsworth [ Sun May 16, 2004 10:51 am ] |
Post subject: | error creating /.qt and can't open /dev/video |
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. |
Author: | cesman [ Sun May 16, 2004 11:03 am ] |
Post subject: | |
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. |
Author: | s_hainsworth [ Sun May 16, 2004 12:04 pm ] |
Post subject: | |
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 |
Author: | s_hainsworth [ Sun May 16, 2004 12:09 pm ] |
Post subject: | |
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. |
Author: | cesman [ Sun May 16, 2004 12:09 pm ] |
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You didn't answer my question. |
Author: | s_hainsworth [ 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? |
Author: | Xsecrets [ Sun May 16, 2004 12:19 pm ] |
Post subject: | |
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). |
Author: | s_hainsworth [ Sun May 16, 2004 12:22 pm ] |
Post subject: | |
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. |
Author: | cesman [ Sun May 16, 2004 12:29 pm ] |
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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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Author: | s_hainsworth [ 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. |
Author: | cesman [ Sun May 16, 2004 12:52 pm ] |
Post subject: | |
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? |
Author: | s_hainsworth [ Sun May 16, 2004 1:20 pm ] |
Post subject: | |
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) |
Author: | cesman [ Sun May 16, 2004 9:15 pm ] |
Post subject: | |
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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Author: | tjc [ Sun May 16, 2004 9:59 pm ] |
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BTW - Any particular reason why we're still using this older version of the PVR-x50 firmware? |
Author: | cesman [ Mon May 17, 2004 3:20 am ] |
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Other than the fact it works ![]() |
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