Hello,thanks - but in my Antenna is noway the problem - the signal is strong and HQ. All other tuners (STB, TVs, ...) are more then happy.
If it would not - the BERs would by HIGH all time. No WiFi. 4GB RAM - most of them always free.I thing the problem is - that the card loses tuned status (becomes detuned). That is why helps re-tune. That is why I ask about how to re-tune without breaking the stream.
Ideal would be if this could be done by driver. --kapetr Dne 8.2.2014 21:36, Malcolm Priestley napsal(a):
On Sat, 2014-02-08 at 19:35 +0100, kapetr@xxxxxxxxx wrote:Hello, I have compile it (I hope) the more right way now :-) The patch saved as aaa.patch in media_build/backports and added lines to media_build/backports/backports.txt: ---- [3.2.0] add aaa.patch ---- Now dmesg looks like: ----------------- [ 17.643287] usb 1-1.3: dvb_usb_af9035: prechip_version=83 chip_version=02 chip_type=9135 [ 17.643661] usb 1-1.3: dvb_usb_v2: found a 'ITE 9135 Generic' in cold state [ 17.652169] usb 1-1.3: dvb_usb_v2: downloading firmware from file 'dvb-usb-it9135-02.fw' [ 17.746382] usb 1-1.3: dvb_usb_af9035: firmware version=3.39.1.0 [ 17.746389] usb 1-1.3: dvb_usb_v2: found a 'ITE 9135 Generic' in warm state [ 17.747413] usb 1-1.3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 17.747429] DVB: registering new adapter (ITE 9135 Generic) [ 17.805233] i2c i2c-16: af9033: firmware version: LINK=0.0.0.0 OFDM=3.9.1.0 [ 17.805238] usb 1-1.3: DVB: registering adapter 0 frontend 0 (Afatech AF9033 (DVB-T))... [ 17.821832] i2c i2c-16: tuner_it913x: ITE Tech IT913X successfully attached [ 17.858231] Registered IR keymap rc-it913x-v1 [ 17.858291] input: ITE 9135 Generic as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/rc/rc0/input5 [ 17.858395] rc0: ITE 9135 Generic as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/rc/rc0 [ 17.858398] usb 1-1.3: dvb_usb_v2: schedule remote query interval to 500 msecs [ 17.858401] usb 1-1.3: dvb_usb_v2: 'ITE 9135 Generic' successfully initialized and connected [ 17.858415] usbcore: registered new interface driver dvb_usb_af9035 ------------------ First I have thing the problem is gone: It has run OK over 20 minutes (before it goes down mostly in <10 min on CH59). But - unfortunately after cca 25 min it has go down again :-( -------- status 1f | signal ffff | snr 0122 | ber 00000000 | unc 0000014f | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 0000830e | unc 0000014f | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 0001061c | unc 0000014f | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 00000000 | unc 0000014f | FE_HAS_LOCK ... status 1f | signal ffff | snr 0122 | ber 003dedb0 | unc 0002fd94 | FE_HAS_LOCK status 07 | signal ffff | snr 0122 | ber 004c8030 | unc 0002fffd | status 1f | signal ffff | snr 0118 | ber 006d50fd | unc 0003026d | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 006cfc4e | unc 00030569 | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 009d1eda | unc 00030832 | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 008924b1 | unc 00030a5e | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 00712074 | unc 00030d27 | FE_HAS_LOCK status 1f | signal ffff | snr 0122 | ber 008d4d85 | unc 00030f55 | FE_HAS_LOCKThat BER looks awful. If the antenna is good, it looks like local interference. Check the wifi adapter is not causing it. If possible put the TV adapter on a short 0.5m/1m USB extension cable away from the PC. Trouble is these devices do not have any shielding. I have heard problems of memory leak in Ubuntu 64 running low on memory check free memory after 30 mins. Regards Malcolm--------- So - maybe is it little better, but the problem persist. Any chance to solve it in dvb driver ? I have tested (with the old driver) - that it helps to CTRL+C the: tzap -r -c /etc/channels.conf "Prima ZOOM" And then run it again. (It was not necessary to switch to another freq. and back, as I wrote before). Unfortunately it damages for a while the recording (file.ts). Is there another way how to "re-tune" (re-zap) without break recording/viewing ? I could then re-tune e.g. every 5 minutes and it could solve the problem. Could not that be done in driver itself ? Thanks. --kapetr Dne 8.2.2014 16:08, Malcolm Priestley napsal(a):On Sat, 2014-02-08 at 15:43 +0100, kapetr@xxxxxxxxx wrote:Hello, unfortunately I do not understand development, patching, compiling things. I have try it but I need more help. I have done: git clone --depth=1 git://linuxtv.org/media_build.git cd media_build ./build it downloads and builds all. At begin of compiling I had stop it. Then I did manual change of ./media_build/linux/drivers/media/usb/dvb-usb-v2/af9035.c ------------------- old part: { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa, &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) }, /* IT9135 devices */ #if 0 { DVB_USB_DEVICE(0x048d, 0x9135, &af9035_props, "IT9135 reference design", NULL) }, { DVB_USB_DEVICE(0x048d, 0x9006, &af9035_props, "IT9135 reference design", NULL) }, #endif /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */ { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099, &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", NULL) }, ----------------------------- new: { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa, &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) }, /* IT9135 devices */ { DVB_USB_DEVICE(0x048d, 0x9135, &af9035_props, "IT9135 reference design", NULL) }, /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */ { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099, &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", NULL) }, -------------------------------------------- But now I do not know how to "restart" build process.Just make from media_build directory.I have try: cd /tmp/media_build/linux make It had compiled *. and *.ko files.you need to run /sbin/depmod -a and reboot it best to just run with su/sudo make install I have just tested all the single ids. I am about to send a patch to add all the single tuner ids to af9035 from it913x. I haven't found any problems. Regards Malcolm -- 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
-- 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
