[linux-dvb] MegaSky 5580 (0x5581) tuning Austria

Erich N. Pekarek epek at gmx.net
Wed Jun 13 10:52:41 CEST 2007


Hello,

having read various tutorials, having tried various repositories including v4l-dvb-experimental from mcentral.de, v4l-dvb-test and the regular v4l-dvb, having installed rc4 of 2.4.22 kernel, while trying to follow the rules of clean install and reboot, I have to admit, that tuning to 794Mhz for the Austrian MUX-A seems to be impossible with linux (feisty). The same device works without problems with a medium to strong signal on XP.

Current status: i seem to tune, but no SNR-Level seems sufficient for a lock.

here is my lsusb: Bus 001 Device 004: ID 0db0:5581 Micro Star International 
dmesg is identical to most other postings - ZL10353, QT1010 and GL861 are being detected on "... 55801 USB 2.0...", no firmware upload takes place.
Setting an additional   zl10353_single_write(fe, 0x5A, 0x0C);
as described on http://linuxtv.org/pipermail/linux-dvb/2007-January/015518.html
shows no effort.
---
#dvbtune -f 794
Using DVB card "Zarlink ZL10353 DVB-T"tuning DVB-T (in United Kingdom) to 794000 Hz
polling....
Getting frontend event
FE_STATUS:
polling....
polling....

---
kaffeine shows some signal, two of 99%, SNR reaches 12% once (on the wrong frequency?) and won´t lock on to it.

---
channels.conf copied: ORF1:794000000:I999B8C999D999M16T8G4Y0:T:27500:1010:1011,1012;1013:1015:0:10101:
8232:100:0
---
mplayer:
...

Playing dvb://ORF1.
dvb_tune Freq: 794000
Not able to lock to the signal on the given frequency, timeout: 30
dvb_tune, TUNING FAILED
ERROR, COULDN'T SET CHANNEL  0: Failed to open dvb://ORF1.


Exiting... (End of file)
---
I cannot identify the problem without help. Would someone please assist me in tracking down and solving the error?

I´ve already returned a WinTV HVR-900 to my dealer, because of the missing micronas support in the newest revision and get starting depressed :-(

So long and thanks for all the ... help

Kind regards
Erich

P.s: dmesg output will follow after another kernel has been compiled. Which other log files would you like to see?

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