John Goacher wrote: > Manu Abraham wrote: > >> John Goacher wrote: >>> Tony Grant wrote: >>> >>>> Le vendredi 14 décembre 2007 à 13:49 +0000, John Goacher a écrit : >>>> >>>>> Your success with Das Erste prompted me to >>>>> temporarily re-align my dish (Sky minidish) to point to 19.2E to see if >>>>> I could duplicate your results. The good news is that I get a >>>>> perfect recording from Das Erste. I recorded about 15 minutes of data, >>>>> then >>>>> ran it through TSReader Lite to check for errors. There were absolutely >>>>> no >>>>> errors of any kind indicated ! I double checked this by viewing the >>>>> recording in DVBViewer Pro under XP. >>>>> >>>>> This is interesting because the signal strength from Das Erste (as >>>>> displayed >>>>> by DVBViewer Pro under Windows XP) is much lower than I'm getting from >>>>> Astra >>>>> 28.2E (I'm based in the London area). Das Erste displays a signal >>>>> strength >>>>> reading >>>>> of 41%, whereas the BBC channels at 28.2E (on which I'me seeing high >>>>> error >>>>> rates) >>>>> show signal strengths of around 65%. I think this probably rules out >>>>> signal >>>>> quality as >>>>> the issue, and suggests the problem is somehow related to the channel >>>>> parameters. >>>> I have issues with 28.2E compared to 19.2E and always have had. 19.2 >>>> just works whereas 28.2 is much more finicky. Last week a big storm >>>> cloud over the Pyreneans blocked all signal for about 10 minutes - BBC2 >>>> just stopped and it is one of the better signals. During thunder storms >>>> on 19.2 you have some artifacts but I have never lost the carrier. >>>> >>> Hi Tony, >>> >>> I take your point, but the fact that I can receive the 28.2E channels >>> perfectly with the PCTV under Windows XP, but not under linux (with the >>> same >>> hardware and feed), strongly suggests the problem is not signal quality. >>> Similarly, the fact that I can receive Das Erste perfectly under linux, >>> despite the signal from 19.2E being much weaker at my location, also >>> suggests this. >>> >> When i looked at the pctv452 driver it was based on a older stb0899 driver >> snapshot. >> It still is based on the same ? There were many issues fixed in newer >> changesets, so >> i don't know whether the issue that you see is really a stb0899 driver >> issue which has >> been fixed already or maybe that the pctv device requires some specific >> settings ? I >> don't know.. I don't have much info on this device. >> >> Regards, >> Manu >> > > Hi Manu, > > I was using an older snapshot, but I've now rebuilt and re-installed the > driver following the instructions in the wiki entry at > http://www.linuxtv.org/wiki/index.php/Pinnacle_PCTV_Sat_HDTV_Pro_USB_%28452e%29 > > I'm using what I believe to be the latest snapshot of STB0899 which is > revision 5882 at http://linuxtv.org/hg/~manu/stb0899/rev/5b19ac1cddb5 > > Unfortunately, I still get the packet loss problem with this snapshot. There can be 2 possibilities * some pctv452 specific setting required, due to the hardware difference * some unknown bug that gets explicitly noticed in a specific combination In either case, can you please put up some high resolution pictures of your device up some place (since i don't have much of an understanding about your hardware configuration, hoping that the pictures might yield some clues) ? Regards, Manu _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
