[linux-dvb] Mantis Bug (was Technisat HD2 cannot szap/scan)
HWerner4 at gmx.de
Mon Dec 15 15:30:47 CET 2008
With the Azurewave AD-SP400 (Twinhan VP-1041 / Technisat HD2 /
?poss. Terratec Cinergy S2 PCI HD)
there seems to be a driver bug when tuning some channels immediately
after boot or after resuming from sleep (which is entered after 1 minute idle).
So the initialisation seems to be unsuitable for tuning some channels.
But... if another channel is tuned successfully first then the bad channels *CAN* be tuned
(if you are quick and do it before it sleeps again).
It looks like the problem channels are all horizontal but perhaps other parameters are
Can anyone help?
Instructions for reproducing the problem on Astra 19.2E or Hotbird 13.0E are below.
I don't know whether the problem is in the mantis, stb0899, stb6100 or lnbp21 code.
> > When it goes into sleep mode I see the following in dmesg:
> > [ 522.821625] _stb0899_read_reg: Reg=[0xf12a], data=58
> > [ 522.821632] stb0899_i2c_gate_ctrl: Disabling I2C Repeater ...
> > [ 522.821634] stb0899_write_regs [0xf12a]: 58
> > [ 522.822681] stb0899_sleep: Going to Sleep .. (Really tired .. :-))
> > So the Twinhan 1041 is quite useless for me at the moment.
> Try the following channels.conf for Astra at 19.2E:
> Then do the following (in this order):
> 0. point dish to 19.2E.
> 1. tune to TVEi
> szap-s2 -a 0 -r -p -V -c ~/channels.conf.astra1 "TVEi;CANALSATELLITE"
> 2. hit ctrl-c, and wait 1 minute until the frontend sleeps (check dmesg)
> 3. try to tune to ZDF. It FAILS (hangs).
> szap-s2 -a 0 -r -p -V -c ~/channels.conf.astra1 "ZDF;ZDFvision"
> 4. ctrl-c and then szap-s2 to TVEi. That WORKS.
> 5. ctrl-c and then quickly (before sleep) szap-s2 to ZDF. Now it WORKS
> You can keep changing to other channels provided that it is not allowed to
> get into a sleep.
> Similar problems are seen using scan-s2 instead of szap-s2.
For Hotbird try the following channels.conf.hotbird:
BBC World News:12596:vS0C34M2:S13.0E:27500:163:92:41:0:8204:318:9400:0
Then do the following (in this order):
0. point dish to 13.0E.
1. tune to Toscana Channel (or BBC World News)
szap-s2 -a 0 -r -p -V -c ~/channels.conf.hotbird "Toscana Channel"
2. hit ctrl-c, and wait at least 1 minute until the frontend sleeps (check
3. try to tune to Nile News (or ZDF). It FAILS (hangs with -r -p or doesn't lock without those options).
szap-s2 -a 0 -r -p -V -c ~/channels.conf.hotbird "Nile News"
4. Do ctrl-c and then szap-s2 to Toscana Channel (or BBC World News). That WORKS.
5. Do ctrl-c and then quickly (before sleep) szap-s2 to Nile News (or ZDF). Now it
You can keep changing to other channels provided that it is not allowed to
get into a sleep.
Or even simpler:
just boot the computer (or sudo modprobe -r mantis && sudo modprobe mantis)
and skip number 1 and number 2, i.e. do 0,3,4,5.
> Can someone reproduce this? (or fix the problem ;-) ).
Release early, release often.
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