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

2012-01-13 Thread Mauro Carvalho Chehab
Em 12-01-2012 14:22, Gianluca Gennari escreveu: Il 11/01/2012 20:19, Jim Darby ha scritto: 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

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

2012-01-13 Thread Gianluca Gennari
Il 13/01/2012 12:21, Mauro Carvalho Chehab ha scritto: Em 12-01-2012 14:22, Gianluca Gennari escreveu: Il 11/01/2012 20:19, Jim Darby ha scritto: 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

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

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

2012-01-13 Thread Gianluca Gennari
Il 13/01/2012 14:09, Jim Darby ha scritto: 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

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

2012-01-12 Thread Simon Jones
On 10 January 2012 13:28, Jim Darby uberscuba...@gmail.com wrote: 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. Seeing the 3.2 kernel I thought I'd upgrade and now I seem to have hit a

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

2012-01-12 Thread Gianluca Gennari
Il 11/01/2012 20:19, Jim Darby ha scritto: 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

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)

2012-01-12 Thread Simon Jones
I'm still unsure about the first. It might be a 32/64-bit problem (based on evidence from Simon Jones), it might be flaky hardware or it might be a real problem. I'm planning to build the 3.2.0 kernel (minus the linux-media patches) for 64-bit on different hardware and see what happens. As

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

2012-01-12 Thread Gianluca Gennari
Il 12/01/2012 17:35, Jim Darby ha scritto: 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

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

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

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

2012-01-10 Thread Steven Toth
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? -- Steven Toth - Kernel Labs

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

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

2012-01-10 Thread Andy Walls
Steven Toth st...@kernellabs.com wrote: status SCVYL | signal | snr 00ee | ber | unc | FE_HAS_LOCK status SCVYL | signal | snr 00f0 | ber | unc | FE_HAS_LOCK and when it stopped working, this time an hour later, nothing had changed. In fact, it

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

2012-01-10 Thread Antti Palosaari
On 01/10/2012 03:28 PM, Jim Darby wrote: 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