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Tuner card found but no signal?

Tuner card found but no signal?

Postby readit » Wed Dec 29, 2010 6:17 am

Hi.

I am new to Linux so I find new revelations daily. I have a TBS 8920 tuner card working on a dual boot system in Windows XP but I would like to get it working on the other boot in Linux Mandriva 2010. The card is recognised as hardware twice ( maybe the problem -how do I remove one?} When scanning SNR shows as about 73% but signal is always 0% and no programmes are found. Can anyone help?

Ken
readit
 
Posts: 1
Joined: Wed Dec 29, 2010 4:57 am

Re: Tuner card found but no signal?

Postby edz2k11 » Wed Jun 08, 2011 8:37 am

Hi there

I'm afraid I dont have a solution but I have the same problem!

Running under ubuntu I've added an 8920 to replace a nova dvb-s card since BBC HD have moved to DVB-S2. Unfortunately its not proving to be a very good choice at the moment!

The card now seems to be being picked up but I cant get it to scan.

I'm on Ubuntu 10.04 LTS

uname -ar

Code:

Linux Tardis 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 21:54:21 UTC 2011 i686 GNU/Linux
Running dmesg | grep cx88

gives me

Code:

[ 21.223415] cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.8 loaded
[ 21.223774] cx88[0]: subsystem: 8920:8888, board: TBS 8920 DVB-S/S2 [card=72,autodetected], frontend(s): 1
[ 21.223778] cx88[0]: TV tuner type 4, Radio tuner type -1
[ 21.418732] cx88/0: cx2388x v4l2 driver version 0.0.8 loaded
[ 23.884163] input: cx88 IR (TBS 8920 DVB-S/S2) as /devices/pci0000:00/0000:00:0a.2/rc/rc0/input5
[ 23.884256] rc0: cx88 IR (TBS 8920 DVB-S/S2) as /devices/pci0000:00/0000:00:0a.2/rc/rc0
[ 23.884262] cx88[0]/2: cx2388x 8802 Driver Manager
[ 23.884295] cx88-mpeg driver manager 0000:00:0a.2: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 23.884305] cx88[0]/2: found at 0000:00:0a.2, rev: 5, irq: 18, latency: 32, mmio: 0xec000000
[ 23.884315] IRQ 18/cx88[0]: IRQF_DISABLED is not guaranteed on shared IRQs
[ 23.884939] cx8800 0000:00:0a.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 23.884952] cx88[0]/0: found at 0000:00:0a.0, rev: 5, irq: 18, latency: 32, mmio: 0xeb000000
[ 23.884966] IRQ 18/cx88[0]: IRQF_DISABLED is not guaranteed on shared IRQs
[ 23.885072] cx88[0]/0: registered device video0 [v4l2]
[ 23.885107] cx88[0]/0: registered device vbi0
[ 25.471492] cx88/2: cx2388x dvb driver version 0.0.8 loaded
[ 25.471498] cx88/2: registering cx8802 driver, type: dvb access: shared
[ 25.471504] cx88[0]/2: subsystem: 8920:8888, board: TBS 8920 DVB-S/S2 [card=72]
[ 25.471509] cx88[0]/2: cx2388x based DVB/ATSC card
[ 25.471512] cx8802_alloc_frontends() allocating 1 frontend(s)
[ 26.186765] DVB: registering new adapter (cx88[0])
Which looks ok although I'm not sure its loading the firmware.

Trying to scan doesnt work though, using

scan -x0 -a1 Astra*28*E

gives lots of these messages

Code:

WARNING: filter timeout pid 0x0011
WARNING: filter timeout pid 0x0000
WARNING: filter timeout pid 0x0010
and kern.log shows

Code:

Jun 7 20:11:36 Tardis kernel: [ 48.020054] cx24116_cmd_execute() Firmware not responding
Jun 7 20:11:38 Tardis kernel: [ 49.292089] cx24116_cmd_execute() Firmware not responding
Jun 7 20:11:39 Tardis kernel: [ 50.564041] cx24116_cmd_execute() Firmware not responding
Jun 7 20:13:31 Tardis kernel: [ 162.388013] cx24116_cmd_execute() Firmware not responding
Jun 7 20:13:39 Tardis kernel: [ 170.408025] cx24116_cmd_execute() Firmware not responding
Jun 7 20:13:40 Tardis kernel: [ 171.444032] cx24116_cmd_execute() Firmware not responding
Jun 7 20:13:41 Tardis kernel: [ 172.520015] cx24116_cmd_execute() Firmware not responding
Jun 7 20:14:00 Tardis kernel: [ 191.556015] cx24116_cmd_execute() Firmware not responding
Jun 7 20:14:01 Tardis kernel: [ 192.632015] cx24116_cmd_execute() Firmware not responding

Once thing I've also noted is that the instructions say to run

apt-get install linux-kernel-devel

which you cant do under newer ubuntu builds. I've tried alternatives but wonder if this is why its not working as expected!

Sadly if emails to tbs dont work and I cant find a solution soon, this 8920 will be winging its way back to Amazon and hauppauge will be getting more business
edz2k11
 
Posts: 1
Joined: Wed Jun 08, 2011 8:31 am

Re: Tuner card found but no signal?

Postby sudomail » Wed Jul 06, 2011 6:20 pm

I had the same problem. Turned out to be the firmware.

run scan-s2 Then run dmesg

You should get an entry in there some like

cx24116_firmware_ondemand: Waiting for firmware upload (dvb-fe-cx24116.fw)...
cx24116_firmware_ondemand: Waiting for firmware upload(2)...
cx24116_load_firmware: FW version 1.23.86.1
cx24116_firmware_ondemand: Firmware upload complete

If not make sure that dvb-fe-cx24116.fw is in /lib/firmware.

If you download the latest drivers from http://www.tbsdtv.com/english/Download.html the firmware is in there.
sudomail
 
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Joined: Wed Jul 06, 2011 6:11 pm


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