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TBS linux open source drivers
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No signal on DVB-C with MyGica T230A #269

Closed haasviktor closed 2 years ago

haasviktor commented 2 years ago

Hi,

I have MyGica T230A usb tuner, kernel has recognized it, but there's no signal on DVB-C. Also, I have T230C tuner too and it's working perfectly.

Maybe this commit is not enough for T230A to work correctly with cable? https://github.com/tbsdtv/linux_media/commit/387caebee00671 Parent issue: https://github.com/tbsdtv/linux_media/issues/224

Do you have any idea, what is the issue?

I use kernel 5.15, this is the log: kernel: [1070396.570050] usb 1-7: new high-speed USB device number 7 using xhci_hcd kernel: [1070396.719586] usb 1-7: New USB device found, idVendor=0572, idProduct=689a, bcdDevice= 8.00 kernel: [1070396.719607] usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3 kernel: [1070396.719614] usb 1-7: Product: USB Stick kernel: [1070396.719620] usb 1-7: Manufacturer: Gen kernel: [1070396.719625] usb 1-7: SerialNumber: 2017.12.09 kernel: [1070396.914072] usb 1-7: dvb_usb_v2: found a 'MyGica Mini DVB-(T/T2/C) USB Stick T230A' in warm state kernel: [1070396.914214] usb 1-7: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer kernel: [1070396.914231] dvbdev: DVB: registering new adapter (MyGica Mini DVB-(T/T2/C) USB Stick T230A) kernel: [1070396.914238] usb 1-7: media controller created kernel: [1070396.915016] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. kernel: [1070396.926237] i2c i2c-1: Added multiplexed i2c bus 5 kernel: [1070396.926248] si2168 1-0064: Silicon Labs Si2168-D60 successfully identified kernel: [1070396.926251] si2168 1-0064: firmware version: D 6.0.1 kernel: [1070396.930859] si2157 5-0060: Silicon Labs Si2141 successfully attached kernel: [1070396.930939] usb 1-7: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)... kernel: [1070396.930954] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered. kernel: [1070396.931519] usb 1-7: dvb_usb_v2: 'MyGica Mini DVB-(T/T2/C) USB Stick T230A' successfully initialized and connected kernel: [1070397.019034] si2168 1-0064: firmware: direct-loading firmware dvb-demod-si2168-d60-01.fw kernel: [1070397.019047] si2168 1-0064: downloading firmware from file 'dvb-demod-si2168-d60-01.fw' kernel: [1070397.514364] si2168 1-0064: firmware version: D 6.0.13 kernel: [1070397.520274] si2157 5-0060: found a 'Silicon Labs Si2141-A10' kernel: [1070397.520354] si2157 5-0060: firmware: direct-loading firmware dvb-tuner-si2141-a10-01.fw kernel: [1070397.520364] si2157 5-0060: downloading firmware from file 'dvb-tuner-si2141-a10-01.fw' kernel: [1070397.783571] si2157 5-0060: firmware version: 1.1.11 tvheadend[584]: linuxdvb: adapter added /dev/dvb/adapter0 kernel: [1070397.786818] usb 1-7: DVB: adapter 0 frontend 0 frequency 0 out of range (48000000..870000000)

No signal found by w_scan: w_scan -f c -c HU w_scan version 20170107 (compiled for DVB API 5.11) using settings for HUNGARY Country identifier HU not defined. Using defaults. scan type CABLE, channellist 4 output format vdr-2.0 output charset 'UTF-8', use -C to override Info: using DVB adapter auto detection. /dev/dvb/adapter0/frontend0 -> CABLE "Silicon Labs Si2168": very good :-))

Using CABLE frontend (adapter /dev/dvb/adapter0/frontend0) ---- Getting frontend capabilities---- Using DVB API 5.11 frontend 'Silicon Labs Si2168' supports INVERSION_AUTO QAM_AUTO FECAUTO FREQ (48.00MHz ... 870.00MHz) SRATE (1.000MSym/s ... 7.200MSym/s) ----------------------- 474000: sr6900 (time: 00:01.287) sr6875 (time: 00:02.815) 482000: sr6900 (time: 00:06.107) sr6875 (time: 00:09.403) signal ok: QAM_AUTO f = 482000 kHz S6875C999 (0:0:0) Info: no data from PAT after 2 seconds deleting (QAM_AUTO f = 482000 kHz S6875C999 (0:0:0)) 490000: sr6900 (time: 00:13.131) signal ok: QAM_AUTO f = 490000 kHz S6900C999 (0:0:0) Info: no data from PAT after 2 seconds deleting (QAM_AUTO f = 490000 kHz S6900C999 (0:0:0)) 498000: sr6900 (time: 00:17.135) sr6875 (time: 00:20.439) 506000: sr6900 (time: 00:23.735) signal ok: QAM_AUTO f = 506000 kHz S6900C999 (0:0:0) Info: no data from PAT after 2 seconds deleting (QAM_AUTO f = 506000 kHz S6900C999 (0:0:0)) 514000: sr6900 (time: 00:26.135) sr6875 (time: 00:29.431) 522000: sr6900 (time: 00:32.723) signal ok: QAM_AUTO f = 522000 kHz S6900C999 (0:0:0) Info: no data from PAT after 2 seconds deleting (QAM_AUTO f = 522000 kHz S6900C999 (0:0:0)) ......

Tvheadend log with pre-defined channels: tvheadend[584]: linuxdvb: Unhandled ERROR_BLOCK_COUNT scale: 0 tvheadend[584]: mpegts: 762MHz in DVB-C Network - scan no data, failed tvheadend[584]: subscription: 284D: service instance is bad, reason: No input detected tvheadend[584]: mpegts: 762MHz in DVB-C Network - tuning on Silicon Labs Si2168 #0 : DVB-C #0 tvheadend[584]: subscription: 284E: "epggrab" subscribing to mux "762MHz", weight: 4, adapter: "Silicon Labs Si2168 #0 : DVB-C #0", network: "DVB-C Network", service: "Raw PID Subscription" tvheadend[584]: subscription: 284D: No input source available for subscription tvheadend[584]: subscription: 284D: No input source available for subscription tvheadend[584]: mpegts: 762MHz in DVB-C Network - scan no data, failed

crazycat69 commented 2 years ago

try mainline media_build or latest kernel 5.15+

haasviktor commented 2 years ago

I'm using Debian 5.15.5-2 kernel.

crazycat69 commented 2 years ago

T230A not supported in 5.15 kernel ?

haasviktor commented 2 years ago

T230A is supported in 5.15 https://github.com/torvalds/linux/commit/387caebee00671 https://kernelnewbies.org/Linux_5.15#TV_tuners.2C_webcams.2C_video_capturers

haasviktor commented 2 years ago

Why is it closed? The issue still exists.

crazycat69 commented 2 years ago

I think LNA before tuner IC prevent DVB-C receiving. Check in windows

haasviktor commented 2 years ago

Checked in Windows and found channels. I used the same cable and tried with different cables too. I have no issue with T230C2 and Astrometa, but with T230A there's no signal under Linux 5.15.5

tcmaps commented 2 years ago

myGica was always weird on DVB-C. For my original T230, I need to "hotstart" it with progDVB before using DVBviewer, or it won't get signal also. Maybe something similiar is happening here?

nwrkbiz commented 2 years ago

Same issue here.

technorior commented 1 year ago

Same issue with T230C under 5.15.0-56-generic

AapoTahkola commented 1 year ago

I think LNA before tuner IC prevent DVB-C receiving. Check in windows

My T230A worked at 6.1.13 and 6.x series kernels. However few weeks ago I get no signal at all. Now however if I connect VMware player and connect in windows and back, it starts working. I did not find channels or get picture in windows 10. I think there is some initialization still missing. Does anyone want me to snoop usb traffic to see what the windows driver does?