> -----Original Message----- > From: linux-media-owner@xxxxxxxxxxxxxxx [mailto:linux-media- > owner@xxxxxxxxxxxxxxx] On Behalf Of Manu Abraham > Sent: mercredi 21 septembre 2011 19:53 > To: Mauro Carvalho Chehab > Cc: Lutz Sammer; linux-media@xxxxxxxxxxxxxxx > Subject: Re: TT-budget S2-3200 cannot tune on HB13E DVBS2 transponder > > Mauro, > > On Wed, Sep 21, 2011 at 10:14 PM, Mauro Carvalho Chehab > <mchehab@xxxxxxxxxx> wrote: > > Em 04-05-2011 08:27, Lutz Sammer escreveu: > >> On 05/04/11 01:16, Mauro Carvalho Chehab wrote: > >>> Em 13-04-2011 21:05, Lutz Sammer escreveu: > >>>>> On 05/04/11 21:07, Steffen Barszus wrote: > >>>>>> On Tue, 05 Apr 2011 13:00:14 +0200 "Issa Gorissen" > >>>>>> <flop.m@xxxxxxx> wrote: > >>>>>> > >>>>>>> Hi, > >>>>>>> > >>>>>>> Eutelsat made a recent migration from DVB-S to DVB-S2 (since > >>>>>>> 31/3/2011) on two transponders on HB13E > >>>>>>> > >>>>>>> - HOT BIRD 6 13° Est TP 159 Freq 11,681 Ghz DVB-S2 FEC 3/4 27500 > >>>>>>> Msymb/s 0.2 Pilot off Polar H > >>>>>>> > >>>>>>> - HOT BIRD 9 13° Est TP 99 Freq 12,692 Ghz DVB-S2 FEC 3/4 27500 > >>>>>>> Msymb/s 0.2 Pilot off Polar H > >>>>>>> > >>>>>>> > >>>>>>> Before those changes, with my TT S2 3200, I was able to watch TV > >>>>>>> on those transponders. Now, I cannot even tune on those > >>>>>>> transponders. I have tried with scan-s2 and w_scan and the > latest drivers from git. > >>>>>>> They both find the transponders but cannot tune onto it. > >>>>>>> > >>>>>>> Something noteworthy is that my other card, a DuoFlex S2 can > >>>>>>> tune fine on those transponders. > >>>>>>> > >>>>>>> My question is; can someone try this as well with a TT S2 3200 > >>>>>>> and post the results ? > >>>>>> i read something about it lately here (german!): > >>>>>> http://www.vdr-portal.de/board16-video-disk-recorder/board85-hdtv > >>>>>> -dvb-s2/p977938-stb0899-fec-3-4-tester-gesucht/#post977938 > >>>>>> > >>>>>> It says in stb0899_drv.c function: > >>>>>> static void stb0899_set_iterations(struct stb0899_state *state) > >>>>>> > >>>>>> This: > >>>>>> reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER); > >>>>>> STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale); > >>>>>> stb0899_write_s2reg(state, STB0899_S2DEMOD, > >>>>>> STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg); > >>>>>> > >>>>>> should be replaced with this: > >>>>>> > >>>>>> reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER); > >>>>>> STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale); > >>>>>> stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, > >>>>>> STB0899_OFF0_MAX_ITER, reg); > >>>>>> > >>>>>> Basically replace STB0899_S2DEMOD with STB0899_S2FEC in this 2 > >>>>>> lines affected. > >>>>>> > >>>>>> Kind Regards > >>>>>> > >>>>>> Steffen > >>>>> Hi Steffen, > >>>>> > >>>>> Unfortunately, it does not help in my case. Thx anyway. > >>>> > >>>> Try my locking fix. With above patch I can lock the channels > >>>> without problem. > >>> > >>> Can someone confirm that such patch would fix the issue? If so, > >>> please forward it in a way that it could be applied (patch is > >>> currently line-wrapped), and submit with some comments/description > and your SOB. > >>> > >>> As the patch is currently broken, I'm just marking it as rejected at > patchwork. > >>> > >>> Manu, > >>> > >>> Please take a look on this trouble report. > >>> > >> > >> Sorry, the things are mixed here. My patch (resend and hopefully this > >> time not broken) handles only DVB-S transponders. > >> > >> The FEC fix patch fixed locking on 11,681 Ghz, but not on 12,692 Ghz > >> for me. But I have very weak receiption, > >> We did a lot of experiments with this card and these 2 transponders, and here is what you need: * The dish must be perfectly oriented * Check carefully the X-pol (LNB rotation) * Be careful that all the LNB are not equal: we managed to get good results with some LNBs and never manage to have reception with other models of LNB * It seems that the DVB-S2 demodulator (that is quite old now) in this card is very sensitive to bad signals and maybe sensitive to cross polarization more than other demodulators. So make a short answer: to correct the issues with these specifics transponders and this card, we first do a fine dish/LND orientation and then change the LNB, usually, it's enough. Specific measurement tool is needed to make good work. Finally, it isn't that much a driver problem in my opinion. > >> Johns > > > > Manu, > > > > We're still missing your review on this patch[1], or it were > > eventually missed. Please review it. > > > > Thanks, > > Mauro > > > > [1] http://patchwork.linuxtv.org/patch/6511/ > > > > Patch is good and correct. Thanks. > Reviewed-by: Manu Abraham <manu@xxxxxxxxxxx> > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" > in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo > info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
