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TBS5520 Linux Driver v170206 no DVB-T/T2 delivery system?

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TBS5520 Linux Driver v170206 no DVB-T/T2 delivery system?

Postby Tnix » Sat Feb 11, 2017 7:04 am

Hi all,
is there any way to change the delivery system from DVB-S/S2 to DVB-T/T2 in TBS5520 with v170206 drivers? Or only is supported DVB-S/S2 in these drivers?

Additional info:
Code: Select All Code
$ dmesg | grep TBS
[    4.388170] TBS version 160405
[    4.389320] dvb-usb: found a 'TBS 5520 USB2.0' in cold state, will try to load a firmware
[    4.498852] dvb-usb: found a 'TBS 5520 USB2.0' in warm state.
[    4.499005] DVB: registering new adapter (TBS 5520 USB2.0)
[    4.502044] TurboSight TBS 5520 Frontend Attaching...
[    4.502049] dvb-usb: no frontend was attached by 'TBS 5520 USB2.0'
[    4.502140] dvb-usb: TBS 5520 USB2.0 successfully initialized and connected.
[    4.535252] dvb-usb: TBS 5520 USB2.0 successfully deinitialized and disconnected.
[    6.279211] usb 3-2: Product: TBS 5520
[    6.279213] usb 3-2: Manufacturer: TBS-Tech
[    6.279676] dvb-usb: found a 'TBS 5520 USB2.0' in cold state, will try to load a firmware
[    6.386858] dvb-usb: found a 'TBS 5520 USB2.0' in warm state.
[    6.387126] DVB: registering new adapter (TBS 5520 USB2.0)
[    6.573482] TurboSight TBS 5520 Frontend Attaching...
[   12.673238] DVB: registering adapter 0 frontend 0 (TurboSight TBS 5520FE DVBS/S2 frontend)...
[   12.673569] dvb-usb: TBS 5520 USB2.0 successfully initialized and connected.

$ dmesg | grep tbs
[    4.389640] dvb-usb: downloading firmware from file 'dvb-usb-tbsqbox-id5520.fw'
[    4.389641] tbs5520: start downloading tbs5520 firmware
[    4.498847] tbs5520: end downloading tbs5520 firmware
[    4.499006] tbs5520: read eeprom failed.
[    4.502162] usbcore: registered new interface driver tbs5520
[    6.279699] dvb-usb: downloading firmware from file 'dvb-usb-tbsqbox-id5520.fw'
[    6.279700] tbs5520: start downloading tbs5520 firmware
[    6.386849] tbs5520: end downloading tbs5520 firmware
[   10.341773] tbs5520fe: Initialized
[   12.673079] tbs5520: Attached tbs5520FE!

$ lsusb | grep TBS
Bus 003 Device 008: ID 734c:5520 TBS Technologies China

$ uname -a
Linux marine06 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

$ dvb-fe-tool
Device TurboSight TBS 5520FE DVBS/S2 frontend (/dev/dvb/adapter0/frontend0) capabilities:
     CAN_2G_MODULATION
     CAN_FEC_1_2
     CAN_FEC_2_3
     CAN_FEC_3_4
     CAN_FEC_4_5
     CAN_FEC_5_6
     CAN_FEC_6_7
     CAN_FEC_7_8
     CAN_FEC_AUTO
     CAN_INVERSION_AUTO
     CAN_QPSK
     CAN_RECOVER
DVB API Version 5.3, Current v5 delivery system: DVBS
Supported delivery systems:
    [DVBS]
     DVBS2
Warning: new delivery systems like ISDB-T, ISDB-S, DMB-TH, DSS, ATSC-MH will be miss-detected by a DVBv5.4 or earlier API call
DiSEqC VOLTAGE: OFF
ERROR    FE_SET_VOLTAGE: Operación no permitida




Thanks.
Tnix
 
Posts: 11
Joined: Fri Mar 18, 2016 12:06 am

Re: TBS5520 Linux Driver v170206 no DVB-T/T2 delivery system

Postby crazycat » Sat Feb 11, 2017 8:05 am

Use open-source driver.
crazycat
 
Posts: 463
Joined: Mon Jan 31, 2011 2:46 am
Location: Ukraine, Kharkov

Re: TBS5520 Linux Driver v170206 no DVB-T/T2 delivery system

Postby Tnix » Tue Feb 14, 2017 2:15 am

Open-source drivers are not working well for me. It compiles and works apparently fine but when I scan for DVB-T channels it doesn't find any channel (only it finds channels in some rarely times and in some mux not in all well-known area muxes). I tried with dvbv5-scan and w_scan utilities, and another apps like me-tv and Kaffeine. For example in Kaffeine when it is scanning for DVB-T channels the signal level peaks quickly to 87% but SNR doesn't move. Also I increased the tuner timeout in Kaffeine to 5000 ms. It's likely the driver, the firmware, ... whatever, has a very short timeout to wait SNR when it find a mux with signal.

This behaviour doesn't occur with DVB-S tunning in Linux. In Windows both modes are working fine and the signal levels are about 88% for DVB-T so it isn't a signal strength problem.

Is there a setting in source files or module params or likely to increase such timeout?

I hope to give you some clues to try to resolve my problem.

Thanks for all.
Tnix
 
Posts: 11
Joined: Fri Mar 18, 2016 12:06 am


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