With Ubuntu's 3.5 kernel, the DVB-C frontend is not registered at all -- only DVB-T/T2 is available. I'll do some more testing with newer/older kernels over the next few days. Regards- -Radek -----Original Message----- From: Antti Palosaari [mailto:crope@xxxxxx] Sent: Wednesday, January 16, 2013 3:37 PM To: Radoslaw Moszczynski Cc: linux-media@xxxxxxxxxxxxxxx Subject: Re: PcTV Nanostick 290e -- DVB-C frontend only working after reconnecting the device On 01/16/2013 03:58 PM, Radoslaw Moszczynski wrote: > Hi, > > I'm not sure if this has been already reported, but I was playing > around with Nanostick 290e today and I encountered some weird behavior > with the DVB-C frontend. > > The DVB-C frontend only seems to work once after plugging in the device. > During subsequent uses, it fails to lock on to signal. However, you > can unplug the Nanostick, plug it back in, and it is able to lock on > again. But only once -- then you have to replug it again. > > The exact actions that I took: > > 1. Plug in the Nanostick. > 2. Run dvbstream to record a DVB-C stream -- works OK. > 3. Run dvbstream to record a DVB-C stream again -- fail to lock on signal. > 4. Unplug the Nanostick. Plug it back in. > 5. Run dvbstream to record a DVB-C stream -- works OK. > 6. Run dvbstream to record a DVB-C stream again -- fail to lock on signal. > > I'm using kernel 3.2.0 on Ubuntu x86. The DVB-T/T2 frontend doesn't > display this behavior. > > If anyone's interested in debugging this, I'll be happy to provide > more information. Could you test first quite latest Kernel, 3.7 or even 3.8. If 3.7 behaves similarly, then test older Kernel 3.0. Working only on first tuning attempt sounds like it should not be common problem - otherwise there should be million bug reports like that. regards Antti -- http://palosaari.fi/ -- 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