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luke213
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 Posted: Sun Jul 13, 2008 8:57 am |
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Joined: Sat Jan 28, 2006 8:14 pm
Posts: 13
Location:
Gwinn, MI
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I did a fresh install of 5.5 yesterday when I rebuild my mythbox. Everything is working except Live Tv. This was working in FD27 and all the releases from the last few years. I can't seem to find any errors in the mythbackend.log relating to it either.
Anyways I open "live tv" and I see a blank screen without fuzz for around 20 seconds then it flashes back to the main menu. The strange thing is I apt-get'd tvtime and the tuner is functioning in that app. I could use some idea's:) I've been searching around the forums but I can't seem to make any headway.
Any suggestions would be great.
Luke
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tjc
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Posted: Sun Jul 13, 2008 9:37 am |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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See the R5.5 Hints and the BlackScreenWatchingTV troubleshooting page on the KnoppMyth Wiki. I'm guessing that you probably have the wrong frequency set selected.
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luke213
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Posted: Sun Jul 13, 2008 12:50 pm |
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Joined: Sat Jan 28, 2006 8:14 pm
Posts: 13
Location:
Gwinn, MI
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I've got that section printed out and sitting next to me:) The only thing I haven't tried on there is switch to cable-irc rather than cable. The only reason I didn't try that is it's always been cable for the last 5 installs on this tuner in this location. I'm going to try some other frequencies but I don't think it's that. I do appreciate the suggestion though.
Luke
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tjc
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Posted: Sun Jul 13, 2008 1:01 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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Wade through the other section under mythtv-setup. Aside from general there are about 3 other places where you can override the default frequency set. You may also be missing an appropriate input connection.
OBTW - Did you successfully DL your channel lineup and program guides? Check your logs under /var/log/mythtv/ which probably have specific errors related to this.
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luke213
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Posted: Sun Jul 13, 2008 1:31 pm |
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Joined: Sat Jan 28, 2006 8:14 pm
Posts: 13
Location:
Gwinn, MI
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Tried the other frequencies to no avail, though I'm only finding the option to change them in 2 places. One in the General Tab, then also in the sources field where I setup my listings. I did get schedules to work proper(so much better than tweaking it into the older versions) and I peruse my guide in the recording area on myth just can't seem to get any video out of the tuner through myth. I should also list some more info on the hardware(I apologize for the concise explanation above, I was on my pda).
Athlon 64 3200+
Asus K8V Deluxe(I believe, it's been a little while)
1.5 GB DDR(known to be good, 1 stick GEIL, one Crucial)
3 HDD's(750gb Sata, 320gb EIDE, 250gb EIDE all Seagate)
Tuner is an Leadtek TV2000 which detecting by the BTTV driver as a .....
Temporary interupption of typing I may have found the issue. I'll edit once I test this. It looks like the BTTV driver is detecting the tuner incorrectly since it's saying PAL(which I should have check it's just always detected this card proper), so let me see if I can't fix this. I appreciate the help hopefully this will take care of it.
Luke
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tjc
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Posted: Sun Jul 13, 2008 1:48 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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Yeah, wrong TV standard could certainly roach things thoroughly. 
Just for reference, memory says that freq overrides are available on the capture card, video sources, input connections, and even in the channel editor. Yikes! You should probably be set to "us-cable" under general and "default" everywhere else.
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luke213
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Posted: Sun Jul 13, 2008 3:46 pm |
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Joined: Sat Jan 28, 2006 8:14 pm
Posts: 13
Location:
Gwinn, MI
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Well this is frusterating, I can't seem to get past this same point. Still getting a blank screen on "live tv" despite bttv reading the proper tuner. I am pulling an error in my backend log now about "ERROR: Only read -1 bytes of 4096 bytes from '/dev/dsp1" which is audio related but I'm not quite sure what to do. I tried changing the audio device to /dev/dsp and /dev/null(not sure what it would do but I figured worth a try) and nothing to no avail. So I'm once again stuck, the tuner is showing up correctly in "dmesg" though now audio issues. This card is the tv2000 which requires a loop out to a "line in" if that makes any difference.
I would appreciate any suggestions;)
Luke
Oh and I did check I'm running NTSC and us-cable in all places as I was before. Also deleted all cards, inputs etc and re did them just to cover my bases.
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tjc
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Posted: Sun Jul 13, 2008 3:48 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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What audio devices show up in /dev? The ALSA changes might have affected this... I show (yours will almost certainly be different):
Code: root@black2:~/scripts/backup# ls -l /dev | grep audio
crw-rw---- 1 root audio 14, 12 Jul 6 23:01 adsp
crw-rw---- 1 root audio 14, 4 Jul 6 23:01 audio
crw-rw---- 1 root audio 14, 3 Jul 6 23:01 dsp
crw-rw---- 1 root audio 14, 0 Jul 6 23:01 mixer
crw-rw---- 1 root audio 254, 0 Jul 6 23:01 rtc0
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luke213
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Posted: Sun Jul 13, 2008 3:54 pm |
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Joined: Sat Jan 28, 2006 8:14 pm
Posts: 13
Location:
Gwinn, MI
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Quote: root@mythtv:/# ls -l /dev | grep audio
crw-rw---- 1 root audio 14, 12 Jul 13 17:24 adsp
crw-rw---- 1 root audio 14, 28 Jul 13 17:24 adsp1
crw-rw---- 1 root audio 14, 4 Jul 13 17:24 audio
crw-rw---- 1 root audio 14, 20 Jul 13 17:24 audio1
crw-rw---- 1 root audio 14, 3 Jul 13 17:24 dsp
crw-rw---- 1 root audio 14, 19 Jul 13 17:24 dsp1
crw-rw---- 1 root audio 14, 0 Jul 13 17:24 mixer
crw-rw---- 1 root audio 14, 16 Jul 13 17:24 mixer1
crw-rw---- 1 root audio 253, 0 Jul 13 17:24 rtc0
crw-rw---- 1 root audio 14, 1 Jul 13 17:24 sequencer
crw-rw---- 1 root audio 14, 8 Jul 13 17:24 sequencer2
Is what I have listed. Thanks Luke EDIT: Other error's etc, Mythbackend.log Quote: 2008-07-13 17:50:59.206 UPnpMedia: BuildMediaMap Done. Found 653 objects
2008-07-13 17:51:32.655 MainServer::HandleAnnounce Monitor
2008-07-13 17:51:32.656 adding: mythtv as a client (events: 0)
2008-07-13 17:51:32.657 MainServer::HandleAnnounce Monitor
2008-07-13 17:51:32.658 adding: mythtv as a client (events: 1)
2008-07-13 17:51:32.663 MainServer::HandleAnnounce Playback
2008-07-13 17:51:32.676 adding: mythtv as a client (events: 0)
2008-07-13 17:51:32.696 TVRec(67): Changing from None to WatchingLiveTV
2008-07-13 17:51:32.700 TVRec(67): HW Tuner: 67->67
2008-07-13 17:51:32.750 SampleRate: Attempted to add a rate 32000 Hz, which is not in the list of allowed rates.
2008-07-13 17:51:34.157 AutoExpire: CalcParams(): Max required Free Space: 2.0 GB w/freq: 15 min
strange error flushing buffer ...
2008-07-13 17:52:08.220 AutoExpire: CalcParams(): Max required Free Space: 2.0 GB w/freq: 15 min
mythfrontend.log Quote: 2008-07-12 23:48:20.991 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:22.322 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:23.652 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:24.982 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:26.312 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:27.643 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:28.973 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:30.303 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:31.634 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:32.964 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:34.294 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:35.624 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:36.955 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:38.285 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:39.615 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:40.945 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:42.276 NVP: Prebuffer wait timed out 10 times.
2008-07-12 23:48:43.606 NVP: Prebuffer wait timed out 10 times.
EDIT2: Out of frusteration I reinstalled knoppmyth 5.5 and I'm at the same point, I think I'm going to go back to 27 just to make sure I can make the hardware work there. ANy suggestions here would still be appreciated.
EDIT3: Well I've downgraded. 27 is working well, no problems with live tv anymore, if anyone happens to know why 5.5 was giving me trouble I would love to be able to upgrade and get the new features.
Thanks for all the help.
Luke
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machine56
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Posted: Tue Jul 22, 2008 5:49 pm |
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Joined: Mon Aug 02, 2004 7:32 pm
Posts: 6
Location:
Boulder, CO
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I had a working R5F27 box that ate /dev/hda. I auto installed R5.5 and also had no live tv. I have two Hauppauge cards in the box, a 150 and a 250. They used to be video1 and video0. After the install, they became video0 and video1. I'm using /usr/local/bin/channel on my Motorola DCT2224's. The serial cables were therefore controlling the wrong boxes. When I fixed this, live tv started working. 
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mihanson
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Posted: Tue Jul 22, 2008 6:02 pm |
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Joined: Sun Sep 25, 2005 3:50 pm
Posts: 1013
Location:
Los Angeles
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Quote: 2008-07-13 17:51:32.750 SampleRate: Attempted to add a rate 32000 Hz, which is not in the list of allowed rates.
There's why your audio is mute. I think you need to change the audio sample rate to 44100 Hz or 48000 Hz. I'm not sure how you can do this, maybe under recording profiles?
http://www.gossamer-threads.com/lists/mythtv/commits/314622#314622
The above post has a similar issue. _________________ Mike
My Hardware Profile
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tjc
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Posted: Tue Jul 22, 2008 6:18 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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Yes recording profiles. See the R5.5 Hints, Known Issues # 2.1.1 for the menu path.
I'm guessing that the cards got rearrange (different ordering of video0 and video1) between R5F27 and R5.5 for some reason as machine56 suggested and things which worked on one don't on the other.
Make sure you have a standard audio bit rate in all of your recording profiles which is supported by both cards (one of the differences between 150 and 250 are possible resolutions and rates with the 150 being less flexible).
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