Re: Cannot tune with KNC1 TV Station DVB-S Ver 2.0 card

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On 3/1/06, Jelte Veldstra <jelte.veldstra@xxxxxxxxx> wrote:
Recently I acquired a KNC1 DVB-S card to use it with MythTV running on Fedora Core 4.

Initially the card was not recognised at all by both kernel-2.6.11-1.1369_FC4 and kernel-2.6.15-1.1831_FC4. The modules wouldn't load automatically and loading the modules by hand didn't give dmesg messages that the card was recognised. I found out that my card has a different PCI id from the KNC1 DVB-S card on the linuxtv DVB Wiki. On the Wiki the subsystem id is 1131:4f56 whereas my DVB-S card has 1894:0010. lspci -nv shows:

00:09.0 Class 0480: 1131:7146 (rev 01)
        Subsystem: 1894:0010
        Flags: bus master, medium devsel, latency 32, IRQ 5
        Memory at e4000000 (32-bit, non-prefetchable) [size=512]

The PCB of the card lists "MULTINORM DVB TUNER Ver 2.0". So my guess is from this and the different PCI subsystem id that this is a new release of this card.

I downloaded and installed the kernel source RPM for kernel-2.6.15-1.1831_FC4 and modified budget-av.c. Here's the diff output for the original and my edit:

[root@localhost ~]# diff budget-av.c.orig budget-av.c
1005c1005
<       MAKE_EXTENSION_PCI(knc1s, 0x1131, 0x0010),
---
>       MAKE_EXTENSION_PCI(knc1s, 0x1894, 0x0010),

After compiling and booting this kernel, the card was recognised and udev created the /dev/dvb entries. With this kernel dmesg output shows:

Linux video capture interface: v1.00
saa7146: register extension 'budget_av'.
PCI: Found IRQ 5 for device 0000:00:09.0
PCI: Sharing IRQ 5 with 0000:00:04.2
saa7146: found saa7146 @ mem f0ad2000 (revision 1, irq 5) (0x1894,0x0010).
DVB: registering new adapter (KNC1 DVB-S).
adapter failed MAC signature check
encoded MAC from EEPROM was ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff
budget-av: ci interface initialised.
KNC1-0: MAC addr = 00:09:d6:6d:24:71
DVB: registering frontend 0 (ST STV0299 DVB-S)...

This seems fine to me as far as I can tell, however all tries of scanning for channels or tuning (using a channels.conf provided by a friend) fail. Could someone please help me diagnose the output? Googling didn't help unfortunately.

Here's what I see when trying to scan for channels:

[root@localhost ~]# scandvb -vv /usr/share/dvb-apps/dvb-s/Astra-19.2E
scanning /usr/share/dvb-apps/dvb-s/Astra-19.2E
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 12551500 V 27000000 5
>>> tune to: 12551:v:0:27000
DiSEqC: switch pos 0, 13V, hiband (index 2)
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x02
>>> tuning status == 0x06
>>> tuning status == 0x02
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x06
WARNING: >>> tuning failed!!!
>>> tune to: 12551:v:0:27000 (tuning failed)
DiSEqC: switch pos 0, 13V, hiband (index 2)
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x02
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x06
>>> tuning status == 0x02
>>> tuning status == 0x06
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.

Trying to tune using an existing channels.conf:

[root@localhost ~]# szap -c channels.conf Eurosport
reading channels from file 'channels.conf'
zapping to 155 'Eurosport':
sat 0, frequency = 11953 MHz H, symbolrate 27500000, vpid = 0x019a, apid = 0x01a4
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 06 | signal 0000 | snr 0000 | ber 0000ff08 | unc 00000000 |
status 06 | signal 0000 | snr 0000 | ber 0000df00 | unc 00000000 |
status 06 | signal 0000 | snr 0000 | ber 00009900 | unc 00000000 |
status 06 | signal 0000 | snr 0000 | ber 00008f00 | unc 00000000 |
status 02 | signal 0000 | snr 0000 | ber 00008200 | unc 00000000 |
status 06 | signal 0000 | snr 0000 | ber 00008000 | unc 00000000 |
status 06 | signal 0000 | snr 0000 | ber 00008300 | unc 00000000 |

I have enabled debug messages for stv0299. When I try to tune I see this in dmesg:

stv0299: stv0299_set_FEC
stv0299: stv0299_set_voltage: ??
stv0299: stv0299: init chip
stv0299: stv0299_wait_diseqc_idle
stv0299: stv0299_set_voltage: SEC_VOLTAGE_18
stv0299: stv0299_send_diseqc_msg
stv0299: stv0299_wait_diseqc_idle
stv0299: stv0299_wait_diseqc_fifo
stv0299: stv0299_wait_diseqc_fifo
stv0299: stv0299_wait_diseqc_fifo
stv0299: stv0299_wait_diseqc_fifo
stv0299: stv0299_wait_diseqc_idle
stv0299: stv0299_send_diseqc_burst
stv0299: stv0299_wait_diseqc_idle
stv0299: stv0299_wait_diseqc_idle
stv0299: stv0299_wait_diseqc_idle
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x83
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x91
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x83
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x91
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x91
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x91
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_read_signal_strength : FE_READ_SIGNAL_STRENGTH : AGC2I: 0xffff, signal=0x0000
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x91
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x94
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x83
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x93
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x90
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_read_status : FE_READ_STATUS : VSTATUS: 0x92
stv0299: stv0299_set_frontend : FE_SET_FRONTEND
stv0299: stv0299_set_FEC
stv0299: stv0299_set_voltage: ??

At first glance it seems that the tuner doesn't get a signal. Or perhaps the frontend isn't initialised properly. I have used this same card in the same system with Windows XP SP2 and that works fine. So a hardware issue can be ruled out I guess.

I have tried to compile the CVS checkout of kernel-dvb with the FC4 src.rpm. This didn't work. Perhaps I should try to use a kernel.org kernel source, but I'd like to stick to the FC4 kernel as I don't know whether other things would break.

I hope I provided enough information. Just let me know if more is needed.

Thanks in advance for your time.

Regards,


Jelte


No answer to my previous question, but digging further back into the archives I found this post:

http://www.linuxtv.org/pipermail/linux-dvb/2005-March/001015.html

This seems related. There where other posts about KNC1 DVB-S cards, but the errors posted don't seem to match what I experience. My programming skills are too limited to really understand what to try next based on the advice given in the above post. So if someone could help me out, that would greatly be appreciated.
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