On Saturday 26 July 2008 18:33:47 Michael Krufky wrote: > Yusik Kim wrote: > > On Saturday 26 July 2008 13:40:36 Mike Isely wrote: > >> On Sat, 26 Jul 2008, Yusik Kim wrote: > >>> On Saturday 26 July 2008 08:39:16 Steven Toth wrote: > >>>> Yusik Kim wrote: > >>>>> Hi, > >>>>> > >>>>> Has anyone got the digital part of this device to work properly? > >>>>> > >>>>> Modules are compiled from the latest (7/26) v4l-dvb snapshot with a > >>>>> 2.6.25.4 kernel. The modules seem to load properly and the analog > >>>>> part works in mythtv. The digital part kind of works. > >>>>> The problems I can observe are: > >>>>> 1. Can only scan 3 digital channels using both the command line scan > >>>>> and mythtv. My other PCI TV card scans 36 of them. > >>>>> 2. Only occasionally locks in to a channel. > >>>>> 3. Takes 5 minutes to lock in to a channel when it actually does > >>>>> succeed. > >>>>> > >>>>> I saw from another mailing list that people were trying to get the > >>>>> remote control to work so I'm guessing the core of the device > >>>>> functions properly. If this is the current state of support, I'd be > >>>>> glad to help testing. > >>>> > >>>> What steps did you take to prove your hardware is function properly, > >>>> or your digital cable feed is reliable? > >>>> > >>>> The drivers works for me, it sounds like you have an environmental > >>>> issue. > >>>> > >>>> - Steve > >>> > >>> Thank you for replying Steve. > >>> I have a windows partition on the same machine and it works perfectly > >>> there. So I don't think there is a problem with the cable feed or > >>> hardware itself. > >>> > >>> Not sure if it has any relevance but I noticed in windows, the red LED > >>> light in the front is always on whereas in linux, it only turns on > >>> right before it tries to lock in to a channel. > >> > >> While I can't vouch for what the Windows driver is doing, the Linux > >> driver (pvrusb2) for this device deliberately only lights the LED when > >> actual streaming is being attempted. Basically the LED becomes a "busy" > >> indicator. It's a feature not a bug :-) > >> > >>> I should add that the 3 channels that were successfully scaned do not > >>> always get picked up in subsequent attempts. It seems like it has > >>> trouble tuning. At least it's good to know it's a problem on my end. > >>> Just have to find a way to fix it. > >> > >> Sounds a lot like there's a significant tuning problem. Unfortunately > >> I'm not seeing the issue here :-( > >> > >> -Mike > > > > Thanks Mike. > > Nobody else seems to have the same problem. What's driving me crazy is > > that I have 2 laptops where I can test (c2d 1.06GHz/ Pentium-M > > 1.4GHz(backend only);both Debian testing) and both have the exact same > > problem so it's most likely not machine specific. It works on a windows > > partition of the c2d machine so it's not hardware related nor is it > > because of a bad signal source. So the only thing that stands between me > > and all the other people who are happily using it can be narrowed down to > > kernel options or the distro. Are there any known kernel options/modules > > that may interfere with the tuning? > > > > Another interesting thing is that in mythtv-setup, I have no option to > > choose ATSC. Only NTSC, NTSC-JP, SECAM, etc. but no ATSC. It doesn't even > > allow me the option to manually create an ATSC channel. The only way I > > get an ATSC channel is through active scan (which most of the time > > doesn't work). I can select ATSC on my desktop with a pci capture card. I > > can't use the desktop to test it because it's USB1.1. > > > > It looks like a dead end for now. Thanks to everyone who tried to help. > > To use ATSC in mythtv, set the device up as a DVB device, not a video4linux > device. You set up two devices, one video4linux for the analog encoding, > the other "DVB" for ATSC. My device is set up as DVB (s5h1411/ATSC). In fact, I don't have the analog tuner set up since I know it is working. What I am saying is that in mythtv-setup -> General -> Locale Settings -> TV Format I don't have an option to choose ATSC where my other pci tuner does give me that option. Also when I try to manually create a new channel from the channel editor there is no ATSC option for the "tv format" but the pre-scanned channels do display "ATSC". I didn't know if this was normal behavior. Probably no one will be interested at this point but I also noticed after taking 5 minutes to lock to a signal, it can quickly lock to the channels that are near by (e.g. 7_1, 7_2, 7_3) but when changing the channel to something like 9_1, it takes another 5 minutes to lock to it. > > I also suggest that you try adding a signal amplifier and see if that helps > the reception. My antenna is the type that has a small built in amplifier but I'll try it out at a friend's house with cable. Thanks! > > Regards, > > Mike _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
