2011/8/17 Jose Alberto Reguero <jareguero@xxxxxxxxxxxxxx>: > On Martes, 16 de Agosto de 2011 22:57:24 Antti Palosaari escribió: >> On 08/16/2011 11:27 PM, Jose Alberto Reguero wrote: >> >> options dvb-usb force_pid_filter_usage=1 >> >> >> >> I change the signal timeout and tuning timeout and now it works perfect! >> >> >> >> I can watch two HD channels, thanks for your help. >> >> >> >> I really don't understand what force_pid_filter_usage do on the >> >> module, is there any documentation? >> >> >> >> Thanks and best regards. >> > >> > For usb devices with usb 2.0 when tunned to a channel there is enought >> > usb bandwith to deliver the whole transponder. With pid filters they >> > only deliver the pids needed for the channel. The only limit is that the >> > pid filters is limited normaly to 32 pids. >> >> May I ask how wide DVB-T streams you have? Here in Finland it is about >> 22 Mbit/sec and I think two such streams should be too much for one USB >> bus. I suspect there is some other bug in back of this. >> >> regards >> Antti > > Here the transport stream is like yours. About 4 Mbit/sec by channel, and > about 5 channels by transport stream. The problem I have is that when I have > the two tuners working I have a few packets lost, and I have some TS > discontinuitys. With pid filters the stream is perfect. Perhaps Josu have > another problem. > > Jose Alberto > Thanks both! I don't know how wide is the stream, but it could be a USB wide limitation. My board is a little ION based and I have some USB devices: $ lsusb Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 006: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Bus 002 Device 005: ID 04fc:05d8 Sunplus Technology Co., Ltd Wireless keyboard/mouse Bus 002 Device 004: ID 0471:0815 Philips (or NXP) eHome Infrared Receiver Bus 002 Device 003: ID 9022:d660 TeVii Technology Ltd. DVB-S2 S660 Bus 002 Device 002: ID 05e3:0606 Genesys Logic, Inc. USB 2.0 Hub / D-Link DUB-H4 USB 2.0 Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 1b80:e399 Afatech Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub The problematic twin device is the "Afatech" one, there is an DVB-S2 USB tuner, a bluetooth dongle, a IR receiver and a wireless mouse/keybord receiver. Now I am at work, I will try to disconnect all devices and try with just the DVB-T device. I use to try with MythTV if it works or not. Is there any other tool to test and debug more deep about USB or DVB wide? I apreciate your help. Thanks and best regards. -- Josu Lazkano -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
