Re: [PATCH] [media] dvb-core: preserve the delivery system at cache clear

2012-01-13 Thread Jim Darby
Thanks for the patch Mauro. According to Gianluca that solves the backwards compatibility issue. This is great news. In other news I've tried a few experiments. Firstly I tried using a 3.2.0 unmodified straight out of the box kernel on my Core 2 64-bit system. I was unable to produce any fault

Re: Possible regression in 3.2 kernel with PCTV Nanostick T2 (em28xx, cxd2820r and tda18271)

2012-01-13 Thread Jim Darby
On 13/01/12 11:21, Mauro Carvalho Chehab wrote: Hmm... this patch shouldn't be causing troubles for an application that only uses DVBv3 call. Is Kaffeine filling the DTV_DELIVERY_SYSTEM with SYS_UNDEFINED (0)? I think this is perhaps where (some of) our problems are starting. I just looked at

Re: Possible regression in 3.2 kernel with PCTV Nanostick T2 (em28xx, cxd2820r and tda18271)

2012-01-12 Thread Jim Darby
On 12/01/12 16:22, Gianluca Gennari wrote: Hi Jim, you spotted a regression in the latest media_build release from 11/01/2012. I had the same problem here: "dvb_frontend_ioctl_legacy: doesn't know how to handle a DVBv3 call to delivery system 0" with 3 totally different sticks (em28xx, dvb-usb,

Re: Possible regression in 3.2 kernel with PCTV Nanostick T2 (em28xx, cxd2820r and tda18271)

2012-01-11 Thread Jim Darby
On 11/01/12 01:05, Antti Palosaari wrote: [snip] Also latest LinuxTV.org devel could be interesting to see. There is one patch that changes em28xx driver endpoint configuration. But as that patch is going for 3.3 it should not be cause of issue, but I wonder if it could fix... Use media_build.

Re: Possible regression in 3.2 kernel with PCTV Nanostick T2 (em28xx, cxd2820r and tda18271)

2012-01-11 Thread Jim Darby
I thought I'd batch all the answers together. Andy suggested something about transfer buffers being dropped out of rotation. I'm not sure exactly what this is but if it's anything like ethernet buffering it would explain it. It would also explain why it lasts longer on the lower bit rate stand

Re: Possible regression in 3.2 kernel with PCTV Nanostick T2 (em28xx, cxd2820r and tda18271)

2012-01-10 Thread Jim Darby
On 10/01/12 13:54, Steven Toth wrote: The Nanostick works fine for between 5 and 25 minutes and then without any error messages cuts out. The TS drops to a tiny stream of non-TS data. It seems to contain a lot of 0x00s and 0xffs. What does femon show for demodulator statistics? Well... I downlo

Possible regression in 3.2 kernel with PCTV Nanostick T2 (em28xx, cxd2820r and tda18271)

2012-01-10 Thread Jim Darby
I've been using a PCTV Nanostick T2 USB DVB-T2 receiver (one of the few that supports DVB-T2) for over six months with a 3.0 kernel with no problems. The key drivers in use are em28xx, cxd2820r and tda18271. Seeing the 3.2 kernel I thought I'd upgrade and now I seem to have hit a problem. T