On 4 May 2011 13:17, Tom Warren <[email protected]> wrote: > > Greetings, > > I have two WinTV PVR USB boxes I'm using with the pvrusb2 driver which feed > into tvheadend playing PAL cable channels. The set up works but I always get > the first tuned channel in black & white and have to tune to one (or more) > different channels and then go back to the original channel get colour. > Occasionally a channel will later go black and white again and I must apply > the same fix. Both boxes are the 'new' hardware version. > > Could this be a driver problem, hardware problem, or fine-tuning problem?? > > I saw a post from 2006 that describes a similar issue but using NTSC: > > http://www.isely.net/pipermail/pvrusb2/2006-January/000384.html > > I'm running Ubuntu server 10.10 64-bit with the driver from > linux-s2api-tbs6980-1_20101024 (commercial mod for the Tenow International > dual satellite card) in which I made a small modification to set: > > .pixelformat = V4L2_PIX_FMT_MPEG, > > ...in the pvrusb2-v4l2.c file in order for tvheadend to recognise it as a > valid source. > > Since both boxes behave the same way, I suspect this is an issue with the > driver. What can I do to debug the issue further? > > > Thanks, > > Tom > -- >
I have tried "pre-tuning" several channels with a script using v4lctl before launching tvheadend, but this does not solve the problem. I've compared the settings while B&W vs colour but can't find any differences. What could be causing this? _______________________________________________ pvrusb2 mailing list [email protected] http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
