Hi Devin, Em Thu, 8 Dec 2016 12:50:19 -0500 Devin Heitmueller <dheitmuel...@kernellabs.com> escreveu:
> Hi Mauro, Laurent, > > I tried out Mauro's latest patch (9:46am EST), and it appears to at > least partially address the issue, but still doesn't work. In fact, > whereas before I was getting stable video with a chroma issue, with > the patch applied I'm now getting no video at all (i.e. tvtime is > completely blocked waiting for frames to arrive). > > First off, a register dump does show that register 0x03 is now 0x6F, > so at least that part is working. However, TVP5150_DATA_RATE_SEL, > (register 0x0D) is now being set to 0x40, whereas it needs to be set > to 0x47 to work properly. Just to confirm, I started up tvtime and > fed the device the following command, at which point video started > rendering properly: > > sudo v4l2-dbg --chip=subdev0 --set-register=0x0d 0x47 > > I'm not sitting in front of the datasheet right now so I cannot > suggest what the correct fix is, but at first glance it looks like the > first hunk of Mauro's patch isn't correct for em28xx devices. > > Also worth noting for the moment I'm testing exclusively with > composite on the HVR-850. Once we've got that working, I'll dig out > an s-video cable and make sure that is working too. Thanks for testing! Just tested here with S-Video, with WinTV USB2 (with interlaced video, generated with vivid + HVR-350). I was able to reproduce the same issue as you: changing register 0x0d to 0x47 indeed made it work. I'm working on a followup patch. Thanks, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
