On 8/13/07, Simon Kenyon <simon@xxxxxxxx> wrote: > Manu Abraham wrote: > > On 8/13/07, Simon Kenyon <simon@xxxxxxxx> wrote: > > > >> Simon Kenyon wrote: > >> > >>> just bought 3 cards for my mythtv master backend. silly me. > >>> > >>> anyway, using szap i find that tuning to a particular channel is at best > >>> a hit and miss affair. > >>> i have a 4x16 multiswitch which feeds astra28.2E into these three cards > >>> and 4 satellite receivers. > >>> they all get decent signal. i previously had a nexus-s and a technotrend > >>> 1500ci in the box and they had no problems with the signal. > >>> > >>> is there anything i can do - other than binning them? > >>> i'm using the hg tree of v4l-dvb. > >>> is there an expermental tree out there with some improvements for this card? > >>> > >>> > >> a data point is that it will not lock onto any signals with a vertical > >> polarization > >> but will lock on to signals with a horizontal polarization (at the > >> second attempt - not the first). > >> the latter sounds like a timing issue. > >> > > > > Some of the 1025 cards have been very nasty. It resembles an older > > case where one card would not tune to either vertical (or was it > > Horizontal) completely stuck at one volytage level. > > > > To take a bite at it, load the dst module with verbose=5, module > > parameter. look at the logs, if you have timing errors you will see > > them in the log. > > > > > > > >> i have 5 other receivers and 2 dvb-s cards which have no problems with > >> the signal coming from the multiswitch to which they are all attached. > >> > >> any help or even ideas of what to do to diagnose the problem out there? > >> > > > > > > just post the logs, will take in a look whether anything's possible. > > > > > here is a log from the machine. > i performed 3 szaps > the first is to a station which did not lock (V) > the second two did (H) > > i hope this is enough to diagnose the problem. > First get the sources from linuxtv.org, follow the build procedures, install the drivers after that look here: http://linuxtv.org/hg/v4l-dvb/file/278ff24d5531/linux/drivers/media/dvb/bt8xx/dst.c 1337 return dst_command(state, paket, 8); 1338 } change it to: err = dst_command(state, paket, 8); msleep(200); return err; Also at the bginning of the function declare err as int. Also: move to the same path in your sources: after line #1646 1645 } 1646 retval = dst_write_tuna(fe); add a msleep(200); do a recompile, reload modules and see whether it helps _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
