Getting ISDB-T Working on recent builds (in Argentina)

FaberfoX - · 2016-04-25T20:55:37+00:00

I used to have tvheadend working about two years ago, can't remember what version but I could dig a bit to find it. Now, I'm having a hard time getting it to...

Jaroslav Kysela

Could you try v4.1-2029-gf4cce41 ? I added these parameters there:


+    S2CMD(DTV_ISDBT_LAYER_ENABLED,     7);
+    S2CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1);
+    S2CMD(DTV_ISDBT_SOUND_BROADCASTING,0);
+    S2CMD(DTV_ISDBT_SB_SUBCHANNEL_ID,  0);
+    S2CMD(DTV_ISDBT_SB_SEGMENT_IDX,    0);
+    S2CMD(DTV_ISDBT_SB_SEGMENT_COUNT,  0);

Cristian M

Perfect! Now Works. Not is a good idea put this to setup into gui? And the TRANSMISSION_MODE variable?

Please fix the Muxes parameters for ar_Argentina. I attach image.

!captura_ok.isbt.jpg!

Cristian M

Another issue is when find Service name, this don´t have the channel name that is equal at service name.
<<

Cristian M

But the moment, EPG don´t give any value...
<<

Jaroslav Kysela

EPG works for ISDB-T as noted in https://tvheadend.org/d/3548-ota-epg-daylight-savings-time-problem-in-brazil-isdb-t for example, but your provider should use EIT tables (ETSI standard). If you provider uses a different standard for EPG, it is not supported.

Just map the services to channels.

Daniel Ribeiro

ISDB-T works for me with the same USB dongle (Brasil). Version 4.1-2052~g6b9dcab~trusty.

Cristobal Richards

Daniel Ribeiro wrote:

> ISDB-T works for me with the same USB dongle (Brasil). Version 4.1-2052~g6b9dcab~trusty.

Can you send a screenshot of the parameters you used for this? In Chile we use ISDB-Tb (Brazilian standard) too, but I haven't been able to activate ir correctly.

Miko666

I'm having the same problem tuning channels with my ISDB-T tuner... I only get the message "scan no data, failed" on all frequencies.

The device is recognized correctly and I can complete all the configuration, however the scan result is always the same: "scan no data, failed"... I've already made sure the problem isn't signal and that the frequencies are correct.

When I plug the tuner into my Debian system, this is the result of my dmesg:

[   11.777570] xhci-hcd f98b0000.xhci: irq 117, io mem 0xf98b0000
[   11.785390] hub 5-0:1.0: USB hub found
[   11.790115] hub 5-0:1.0: 1 port detected
[   11.795555] xhci-hcd f98b0000.xhci: xHCI Host Controller
[   11.801987] xhci-hcd f98b0000.xhci: new USB bus registered, assigned bus number 6
[   11.810451] hub 6-0:1.0: USB hub found
[   11.814250] hub 6-0:1.0: 1 port detected
[   11.825945] usbcore: registered new interface driver xpad
[   11.838879] xpadneo: hello there!
[   11.896545] usb 1-1: new high-speed USB device number 2 using ehci-platform
[   12.101600] usb 5-1: new high-speed USB device number 2 using xhci-hcd
[   12.526595] ahci: probe of f9900000.hiahci failed with error -1
[   12.597838] rtk_btusb: btusb_open hdev->promisc ==0
[   12.597878] usbcore: registered new interface driver rtk_btusb
[   12.626672] cfg80211: Calling CRDA to update world regulatory domain
[   12.761582] RTL871X: module init start
[   12.765350] RTL871X: rtl8723bu v4.3.16_14189.20150519_BTCOEX20150119-5844
[   12.772139] RTL871X: build time: Apr  1 2019 21:24:16
[   12.777208] RTL871X: rtl8723bu BT-Coex version = BTCOEX20150119-5844
[   12.827451] cx231xx #0: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces
[   12.839336] cx231xx #0: registering interface 1
[   12.845324] cx231xx #0: Identified as Pixelview PlayTV USB Hybrid (card=10)
[   12.947164] cx231xx #0: cx231xx_dif_set_standard: setStandard to ffffffff
[   12.954593] RTL871X: rtw_ndev_init(wlan0)
[   12.959436] usbcore: registered new interface driver rtl8723bu
[   12.965311] RTL871X: module init ret=0
[   12.991041] cx25840 0-0044: cx23102 A/V decoder found @ 0x88 (cx231xx #0)
[   13.013361] cx25840 0-0044:  Firmware download size changed to 16 bytes max length
[   13.066629] hi_fb: exports duplicate symbol HIFB_DRV_IsFrameHit (owned by kernel)
[   13.463313] rtl8723bu 1-1:1.2 wlx8420962c8eb3: renamed from wlan0
[   13.570149] EXT4-fs (mmcblk0p18): mounted filesystem with ordered data mode. Opts: (null)
[   14.213648] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   14.941248] cx25840 0-0044: loaded v4l-cx231xx-avcore-01.fw firmware (16382 bytes)
[   14.989849] TUNER: Unable to find symbol tea5767_autodetection()
[   14.995878] tuner 2-0060: Tuner -1 found with type(s) Radio TV.
[   15.001830] tda18271 2-0060: creating new instance
[   15.008358] TDA18271HD/C2 detected @ 2-0060
[   15.184210] tda18271: performing RF tracking filter calibration
[   15.332758] hi_gmac_v200 f9841000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   15.341296] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   16.595763] tda18271: RF tracking filter calibration complete
[   16.631824] cx231xx #0: cx231xx #0: v4l2 driver version 0.0.2
[   16.648897] cx231xx #0: cx231xx_dif_set_standard: setStandard to ff
[   16.730595] cx231xx #0: video_mux : 0
[   16.734254] cx231xx #0: do_mode_ctrl_overrides : 0xff
[   16.739994] cx231xx #0: do_mode_ctrl_overrides PAL
[   16.799067] cx231xx #0: cx231xx #0/0: registered device video0 [v4l2]
[   16.805779] cx231xx #0: cx231xx #0/0: registered device vbi0
[   16.811444] cx231xx #0: V4L2 device registered as video0 and vbi0
[   16.822672] Registered IR keymap rc-pixelview-002t
[   16.827681] input: i2c IR (Pixelview PlayTV USB Hy as /devices/virtual/rc/rc1/input2
[   16.835703] rc1: i2c IR (Pixelview PlayTV USB Hy as /devices/virtual/rc/rc1
[   16.842682] ir-kbd-i2c: i2c IR (Pixelview PlayTV USB Hy detected at i2c-2/2-0030/ir0 [cx231xx #0]
[   16.851583] cx231xx #0: EndPoint Addr 0x84, Alternate settings: 5
[   16.857674] cx231xx #0: Alternate setting 0, max size= 512
[   16.863156] cx231xx #0: Alternate setting 1, max size= 184
[   16.868642] cx231xx #0: Alternate setting 2, max size= 728
[   16.874124] cx231xx #0: Alternate setting 3, max size= 2892
[   16.879695] cx231xx #0: Alternate setting 4, max size= 1800
[   16.885264] cx231xx #0: EndPoint Addr 0x85, Alternate settings: 2
[   16.891357] cx231xx #0: Alternate setting 0, max size= 512
[   16.896840] cx231xx #0: Alternate setting 1, max size= 512
[   16.902326] cx231xx #0: EndPoint Addr 0x86, Alternate settings: 2
[   16.908417] cx231xx #0: Alternate setting 0, max size= 512
[   16.913900] cx231xx #0: Alternate setting 1, max size= 576
[   16.919382] cx231xx #0: EndPoint Addr 0x81, Alternate settings: 6
[   16.925475] cx231xx #0: Alternate setting 0, max size= 512
[   16.930957] cx231xx #0: Alternate setting 1, max size= 64
[   16.936354] cx231xx #0: Alternate setting 2, max size= 128
[   16.941836] cx231xx #0: Alternate setting 3, max size= 316
[   16.947319] cx231xx #0: Alternate setting 4, max size= 712
[   16.952803] cx231xx #0: Alternate setting 5, max size= 1424
[   16.958542] usbcore: registered new interface driver cx231xx
[   16.971132] cx231xx #0:  setPowerMode::mode = 32, No Change req.
[   16.980129] cx231xx #0: cx231xx_stop_stream():: ep_mask = 8
[   16.994471] cx231xx #0: called cx231xx_uninit_vbi_isoc
[   16.999632] cx231xx #0: cx231xx_stop_stream():: ep_mask = 10
[   17.038569] dvb_init: looking for demod on i2c bus: 2
[   17.055378] i2c i2c-1: Detected a Fujitsu mb86a20s frontend
[   17.060982] tda18271 2-0060: attaching existing instance
[   17.066303] DVB: registering new adapter (cx231xx #0)
[   17.071372] usb 5-1: DVB: registering adapter 3 frontend 0 (Fujitsu mb86A20s)...
[   17.081571] Successfully loaded cx231xx-dvb
[   17.086760] cx231xx: Cx231xx dvb Extension initialized
[   87.916463] usb 5-1: DVB: adapter 3 frontend 0 frequency 0 out of range (45000000..864000000)

When I scan the network, all frequencies result in "FAIL"...

2026-03-24 14:18:37.530 mpegts: 623.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:18:37.530 subscription: 0014: "scan" unsubscribing
2026-03-24 14:18:37.530 mpegts: 533.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:18:37.530 subscription: 0016: "scan" subscribing to mux "533.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:18:38.476 epgdb: stored (size 3747970)
2026-03-24 14:18:42.530 mpegts: 533.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:18:42.530 subscription: 0016: "scan" unsubscribing
2026-03-24 14:18:42.530 mpegts: 719.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:18:42.530 subscription: 0018: "scan" subscribing to mux "719.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:18:50.631 mpegts: 719.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:18:50.631 subscription: 0018: "scan" unsubscribing
2026-03-24 14:18:50.631 mpegts: 755.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:18:50.631 subscription: 001A: "scan" subscribing to mux "755.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:18:55.631 mpegts: 755.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:18:55.631 subscription: 001A: "scan" unsubscribing
2026-03-24 14:18:55.631 mpegts: 677.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:18:55.631 subscription: 001C: "scan" subscribing to mux "677.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:02.655 mpegts: 677.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:02.655 subscription: 001C: "scan" unsubscribing
2026-03-24 14:19:02.655 mpegts: 785.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:02.656 subscription: 001E: "scan" subscribing to mux "785.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:07.655 mpegts: 785.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:07.655 subscription: 001E: "scan" unsubscribing
2026-03-24 14:19:07.655 mpegts: 503.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:07.656 subscription: 0020: "scan" subscribing to mux "503.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:12.655 mpegts: 503.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:12.655 subscription: 0020: "scan" unsubscribing
2026-03-24 14:19:12.655 mpegts: 473.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:12.656 subscription: 0022: "scan" subscribing to mux "473.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:20.748 mpegts: 473.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:20.748 subscription: 0022: "scan" unsubscribing
2026-03-24 14:19:20.748 mpegts: 593.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:20.748 subscription: 0024: "scan" subscribing to mux "593.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:25.748 mpegts: 593.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:25.748 subscription: 0024: "scan" unsubscribing
2026-03-24 14:19:25.748 mpegts: 617.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:25.748 subscription: 0026: "scan" subscribing to mux "617.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:32.773 mpegts: 617.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:32.773 subscription: 0026: "scan" unsubscribing
2026-03-24 14:19:32.773 mpegts: 581.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:32.773 subscription: 0028: "scan" subscribing to mux "581.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:37.773 mpegts: 581.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:37.773 subscription: 0028: "scan" unsubscribing
2026-03-24 14:19:37.773 mpegts: 671.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:37.773 subscription: 002A: "scan" subscribing to mux "671.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:42.773 mpegts: 671.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:42.773 subscription: 002A: "scan" unsubscribing
2026-03-24 14:19:42.773 mpegts: 539.142MHz in TV Aberta - tuning on Fujitsu mb86A20s #3 : ISDB-T #0
2026-03-24 14:19:42.773 subscription: 002C: "scan" subscribing to mux "539.142MHz", weight: 6, adapter: "Fujitsu mb86A20s #3 : ISDB-T #0", network: "TV Aberta", service: "Raw PID Subscription"
2026-03-24 14:19:50.869 mpegts: 539.142MHz in TV Aberta - scan no data, failed
2026-03-24 14:19:50.869 subscription: 002C: "scan" unsubscribing
....

I've been trying to solve this for days, can anyone help me with this, please?

DeltaMikeCharlie

You could try stopping TVH and running w_scan.

https://manpages.debian.org/testing/w-scan/w_scan.1.en.html

If w_scan is unable to find any services, perhaps you have a problem with your tuner card or firmware.

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