Opened 17 years ago
Closed 17 years ago
Last modified 17 years ago
#3071 closed defect (fixed)
Only one mux gets tuned on system that used to work
| Reported by: | Owned by: | Janne Grunau | |
|---|---|---|---|
| Priority: | minor | Milestone: | 0.21 |
| Component: | dvb | Version: | head |
| Severity: | high | Keywords: | |
| Cc: | Ticket locked: | no |
Description
Hello,
mythtv is not capable of tuning channels anymore on my system. HW has not changed and I have been using mythtv for a couple of years on this HW. The channel editor does not show any signal/noise ratio while tuning, and it puts out a lot of errors like "Found Channel but it doesn't match existing tsid. You may want to delete existing chann...". I can't say when this has broken, mythtv has been running so nicely for long that I've never needed to re-tune channels.
It is able to find one mux though. And the channels on it. It is the mux number 3 on our cable provider's table here: http://dvb.swelcom.fi/cable.php. Too bad the normal channels I watch are not on that mux.
Other side effect here is that current trunk trashes my dtv_multiplex table. After two scans I now have 603 entries there, where as .20 from ubuntu repos creates only the needed 20+ muxes. Few days ago my dtv_multiplex table had about 32k entries!
Please tell me what info I can provide more from my system to help clearing this one out. I am willing to debug if needed (and told howto... :) )
This same happens on up-to-date ubuntu 6.10's latest mythtv packages and trunk version of today, week old and few weeks old. And I have nuked my existing mysql mythconverg database before trying different versions. My HW is two Terratec Cinergy 1200-C cards and I am able to watch TV with old version of my mythconverg database from backups, and with xine and VDR. Also dvb "scan" utility can produce a channels.conf file. Mythtv just can't. So HW should be ok.
I will attach a complete log of standard output of mythtv-setup, and my mux table after trying to tune. This is taken after I nuked mythconverg database, and did fresh install of todays trunk (Revision: 12770).
Attachments (2)
Change History (8)
Changed 17 years ago by
| Attachment: | tune-fail.txt added |
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Changed 17 years ago by
| Attachment: | dtv_multiplex.txt added |
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dtv_multiplex with bogus entries, only first 20+ are real
comment:1 Changed 17 years ago by
one more thing I forgot to tell...
For some reason I can't even get to search channels until I set QAM from auto to 128 and FEC from auto to none. After doing one scan with that I can do full scan of all transports, but never get signal/noise ratio other than 0. With ubuntu repo version of mythtv (0.20-0.2ubuntu2) signal/noise actually always shows something. Doesn't tune any better though.
comment:2 Changed 17 years ago by
Today I tried the latest stable kernel 2.6.20 from kernel.org. Compiled and installed it, mythtv doesn't work any better with it.
comment:3 follow-up: 4 Changed 17 years ago by
| Owner: | changed from danielk to Janne Grunau |
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Janne, any idea how an invalid inversion paramater could get inserted into the DB?
comment:4 Changed 17 years ago by
| Milestone: | unknown → 0.21 |
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Replying to danielk:
Janne, any idea how an invalid inversion paramater could get inserted into the DB?
Inversion = NULL isn't invalid, I have that too. But networkid = NULL is broken.
comment:6 Changed 17 years ago by
Thanks a lot! Immediately fetched latest trunk and gave it a spin. Works now!
Still QAM needs to be set from auto to 128 for the first channel scan. Otherwise it doesn't start to scan. FEC doesn't make difference anymore. Also signal/noice ratio stays zero while scanning, but signal strength is about 44% always.
Now I'll get back restoring my old database and retune the channels. Great!
mythtv-setup std output