RE: [BUG] Dual tuner TV card, works using one tuner only, doesn't work if both tuners are used
Hi dCrypt, I'm not a developer at all. I'm not even sure why I read this list, but can you determine if the problem is associated with a particular kernel version? i.e. if it works on x.y.z but fails on x.y.(z+1) you have a starting point. If you use the word regression and a kernel version number you might get more attention - but I'm only guessing. Good luck, blind Pete dCrypt wrote: Hi again, I'm sorry if I sound quite rude, but I'm not sure if I am doing it right or not. I subscribed to this mailing list in order to ask for help, or to help with a bug that I've found (as instructed in the wiki http://linuxtv.org/wiki/index.php/Bug_Report), but it seems to me that the mailing list is filled up with developing messages. I don't want to participate in the development, I am a developer but I don't have the skills nor the knowledge. If this is not the right place to direct my questions, I would appreciate some advice. Thank you very much, and best regards. -Mensaje original- De: linux-media-ow...@vger.kernel.org [mailto:linux-media-ow...@vger.kernel.org] En nombre de dCrypt Enviado el: jueves, 01 de enero de 2015 22:04 Para: linux-media@vger.kernel.org Asunto: [BUG] Dual tuner TV card, works using one tuner only, doesn't work if both tuners are used Hi, I just subscribed to the mailing list to submit information on the bug which is driving me crazy since one month ago. I have a VDR based PVR at home, installed over an Ubuntu 14.04 LTS. Everything was working perfectly, until beginning of December. It seems to me that something changed that broke my PVR pretty bad. The problem is the following: tuning (zap) both tuners (it's not needed that both are tuned simultaneously, only one after the other, in no particular order) makes the tuners to enter an state where they can't lock the signal anymore. Facts: - My TV card is a Cinergy T PCIe Dual from Terratec (http://www.linuxtv.org/wiki/index.php/TerraTec_Cinergy_T_PCIe_dual). - The problem arose in the form of frontend x/0 timed out while tuning to channel ... in /var/log/syslog. It happened when both tuners are active, during EPG scan. The problem does not happen if VDR is run with -D parameter to limit the number of frontends enabled. Disabling the EPG scan with both frontends enabled minimizes the problem, but doesn't solve it because tuning both frontends without any EPG scan makes the error happen again. - I initially thought about a problem in the DVB-T signal, because it all started the 1st of December, during the transition to a new set of frequencies in Spain. - Everything was working perfectly before the 1st, and the problems started suddenly. - I setup testing board for debugging, different board and processor, less memory, lots of Linux distros tested, Windows tested as well. - Both tuners works in windows without problems. Confirmed. - I have completely discarded problems/errors in hardware (because in Windows I can enable both tuners without problems) and VDR (because I can reproduce the problems at OS level, without even having VDR installed). - I have almost narrowed the problem at the cx23885 driver, because when it happens, I can restart the TV card to working conditions by executing rmmod cx23885 and modprobe cx23885; however, as with rmmod several dependencies are unloaded as well, I am stuck and I am unable to go on with debugging to find out where the problem really is. - Tools used to test and confirm the problem are: VDR, MythTV, TVHeadend, dvbscan, dvbv5-scan, dvbv5-zap and others - Linux distros tested: Ubuntu, Fedora, Suse, yaVDR (not sure if the card worked at all), MythBuntu (dvb-fe-tool -a 1 -c DVBT was required to force DVB-T mode for the second tuner), and probably others - I have a Sony PlayTV also with dual tuners, which works without any problem. http://www.linuxtv.org/wiki/index.php/Sony_PlayTV_dual_tuner_DVB-T So, that's why I ask for your help. How can I further debug the problem? Is there something I can do? BR, and happy new year! INFO TEST: pvr@prueba:~$ sudo lspci -vvv -s 03:00.0 03:00.0 Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder (rev 04) Subsystem: TERRATEC Electronic GmbH Cinergy T PCIe Dual Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0, Cache Line Size: 4 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at fba0 (64-bit, non-prefetchable) [size=2M] Capabilities: [40] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s 64ns, L1 1us ExtTag- AttnBtn- AttnInd- PwrInd-
RE: [BUG] Dual tuner TV card, works using one tuner only, doesn't work if both tuners are used
Hi, blind Pete. Thank you for taking your time to answer. Yes, I tried different kernels focusing con Ubuntu distro. I don't remember the exact kernel version, but at least those included by default in the Ubuntu 12.04 lts and 14.04 lts ISO image, which worked for me. The latest Ubuntu version I tested was the nightly 15.04 from the 7th of January. BREl 9/1/2015 4:46, blind Pete 0123pe...@gmail.com escribió: Hi dCrypt, I'm not a developer at all. I'm not even sure why I read this list, but can you determine if the problem is associated with a particular kernel version? i.e. if it works on x.y.z but fails on x.y.(z+1) you have a starting point. If you use the word regression and a kernel version number you might get more attention - but I'm only guessing. Good luck, blind Pete dCrypt wrote: Hi again, I'm sorry if I sound quite rude, but I'm not sure if I am doing it right or not. I subscribed to this mailing list in order to ask for help, or to help with a bug that I've found (as instructed in the wiki http://linuxtv.org/wiki/index.php/Bug_Report), but it seems to me that the mailing list is filled up with developing messages. I don't want to participate in the development, I am a developer but I don't have the skills nor the knowledge. If this is not the right place to direct my questions, I would appreciate some advice. Thank you very much, and best regards. -Mensaje original- De: linux-media-ow...@vger.kernel.org [mailto:linux-media-ow...@vger.kernel.org] En nombre de dCrypt Enviado el: jueves, 01 de enero de 2015 22:04 Para: linux-media@vger.kernel.org Asunto: [BUG] Dual tuner TV card, works using one tuner only, doesn't work if both tuners are used Hi, I just subscribed to the mailing list to submit information on the bug which is driving me crazy since one month ago. I have a VDR based PVR at home, installed over an Ubuntu 14.04 LTS. Everything was working perfectly, until beginning of December. It seems to me that something changed that broke my PVR pretty bad. The problem is the following: tuning (zap) both tuners (it's not needed that both are tuned simultaneously, only one after the other, in no particular order) makes the tuners to enter an state where they can't lock the signal anymore. Facts: - My TV card is a Cinergy T PCIe Dual from Terratec (http://www.linuxtv.org/wiki/index.php/TerraTec_Cinergy_T_PCIe_dual). - The problem arose in the form of frontend x/0 timed out while tuning to channel ... in /var/log/syslog. It happened when both tuners are active, during EPG scan. The problem does not happen if VDR is run with -D parameter to limit the number of frontends enabled. Disabling the EPG scan with both frontends enabled minimizes the problem, but doesn't solve it because tuning both frontends without any EPG scan makes the error happen again. - I initially thought about a problem in the DVB-T signal, because it all started the 1st of December, during the transition to a new set of frequencies in Spain. - Everything was working perfectly before the 1st, and the problems started suddenly. - I setup testing board for debugging, different board and processor, less memory, lots of Linux distros tested, Windows tested as well. - Both tuners works in windows without problems. Confirmed. - I have completely discarded problems/errors in hardware (because in Windows I can enable both tuners without problems) and VDR (because I can reproduce the problems at OS level, without even having VDR installed). - I have almost narrowed the problem at the cx23885 driver, because when it happens, I can restart the TV card to working conditions by executing rmmod cx23885 and modprobe cx23885; however, as with rmmod several dependencies are unloaded as well, I am stuck and I am unable to go on with debugging to find out where the problem really is. - Tools used to test and confirm the problem are: VDR, MythTV, TVHeadend, dvbscan, dvbv5-scan, dvbv5-zap and others - Linux distros tested: Ubuntu, Fedora, Suse, yaVDR (not sure if the card worked at all), MythBuntu (dvb-fe-tool -a 1 -c DVBT was required to force DVB-T mode for the second tuner), and probably others - I have a Sony PlayTV also with dual tuners, which works without any problem. http://www.linuxtv.org/wiki/index.php/Sony_PlayTV_dual_tuner_DVB-T So, that's why I ask for your help. How can I further debug the problem? Is there something I can do? BR, and happy new year! INFO TEST: pvr@prueba:~$ sudo lspci -vvv -s 03:00.0 03:00.0 Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder (rev 04) Subsystem: TERRATEC Electronic GmbH Cinergy T PCIe Dual
RE: [BUG] Dual tuner TV card, works using one tuner only, doesn't work if both tuners are used
Hi again, I'm sorry if I sound quite rude, but I'm not sure if I am doing it right or not. I subscribed to this mailing list in order to ask for help, or to help with a bug that I've found (as instructed in the wiki http://linuxtv.org/wiki/index.php/Bug_Report), but it seems to me that the mailing list is filled up with developing messages. I don't want to participate in the development, I am a developer but I don't have the skills nor the knowledge. If this is not the right place to direct my questions, I would appreciate some advice. Thank you very much, and best regards. -Mensaje original- De: linux-media-ow...@vger.kernel.org [mailto:linux-media-ow...@vger.kernel.org] En nombre de dCrypt Enviado el: jueves, 01 de enero de 2015 22:04 Para: linux-media@vger.kernel.org Asunto: [BUG] Dual tuner TV card, works using one tuner only, doesn't work if both tuners are used Hi, I just subscribed to the mailing list to submit information on the bug which is driving me crazy since one month ago. I have a VDR based PVR at home, installed over an Ubuntu 14.04 LTS. Everything was working perfectly, until beginning of December. It seems to me that something changed that broke my PVR pretty bad. The problem is the following: tuning (zap) both tuners (it's not needed that both are tuned simultaneously, only one after the other, in no particular order) makes the tuners to enter an state where they can't lock the signal anymore. Facts: - My TV card is a Cinergy T PCIe Dual from Terratec (http://www.linuxtv.org/wiki/index.php/TerraTec_Cinergy_T_PCIe_dual). - The problem arose in the form of frontend x/0 timed out while tuning to channel ... in /var/log/syslog. It happened when both tuners are active, during EPG scan. The problem does not happen if VDR is run with -D parameter to limit the number of frontends enabled. Disabling the EPG scan with both frontends enabled minimizes the problem, but doesn't solve it because tuning both frontends without any EPG scan makes the error happen again. - I initially thought about a problem in the DVB-T signal, because it all started the 1st of December, during the transition to a new set of frequencies in Spain. - Everything was working perfectly before the 1st, and the problems started suddenly. - I setup testing board for debugging, different board and processor, less memory, lots of Linux distros tested, Windows tested as well. - Both tuners works in windows without problems. Confirmed. - I have completely discarded problems/errors in hardware (because in Windows I can enable both tuners without problems) and VDR (because I can reproduce the problems at OS level, without even having VDR installed). - I have almost narrowed the problem at the cx23885 driver, because when it happens, I can restart the TV card to working conditions by executing rmmod cx23885 and modprobe cx23885; however, as with rmmod several dependencies are unloaded as well, I am stuck and I am unable to go on with debugging to find out where the problem really is. - Tools used to test and confirm the problem are: VDR, MythTV, TVHeadend, dvbscan, dvbv5-scan, dvbv5-zap and others - Linux distros tested: Ubuntu, Fedora, Suse, yaVDR (not sure if the card worked at all), MythBuntu (dvb-fe-tool -a 1 -c DVBT was required to force DVB-T mode for the second tuner), and probably others - I have a Sony PlayTV also with dual tuners, which works without any problem. http://www.linuxtv.org/wiki/index.php/Sony_PlayTV_dual_tuner_DVB-T So, that's why I ask for your help. How can I further debug the problem? Is there something I can do? BR, and happy new year! INFO TEST: pvr@prueba:~$ sudo lspci -vvv -s 03:00.0 03:00.0 Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder (rev 04) Subsystem: TERRATEC Electronic GmbH Cinergy T PCIe Dual Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0, Cache Line Size: 4 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at fba0 (64-bit, non-prefetchable) [size=2M] Capabilities: [40] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s 64ns, L1 1us ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s 2us, L1 4us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM
