[linux-dvb] Re: Twinhan dvb-c tuning problems, help needed

[Manu Abraham <manu@kromtek.com>]

On Wed December 8 2004 9:32 pm, Toni Willberg wrote:
> It seems that I can't get my Twinhan DVB-C card to lock on channels at
> all. I tested the same card on a computer running Windows 2000, and it
> was able to lock.
>
What model is your card ?


> This is how I tried, please correct errorneus commands/parameters and
> give some hints how to debug the problem. This box is FC3 running Kernel
> 2.6.9-1.681_FC3.
>
> All help welcome!
>
> # modprobe bttv i2c_hw=1 card=0x71
> Dec  8 19:21:03 nasu kernel: Linux video capture interface: v1.00
> Dec  8 19:21:03 nasu kernel: bttv: driver version 0.9.15 loaded
> Dec  8 19:21:03 nasu kernel: bttv: using 8 buffers with 2080k (520
> pages) each for capture
> Dec  8 19:21:03 nasu kernel: bttv: Bt8xx card found (0).
> Dec  8 19:21:03 nasu kernel: PCI: Found IRQ 12 for device 0000:00:12.0
> Dec  8 19:21:03 nasu kernel: PCI: Sharing IRQ 12 with 0000:00:07.2
> Dec  8 19:21:03 nasu kernel: PCI: Sharing IRQ 12 with 0000:00:07.3
> Dec  8 19:21:03 nasu kernel: PCI: Sharing IRQ 12 with 0000:00:12.1
> Dec  8 19:21:03 nasu kernel: bttv0: Bt878 (rev 17) at 0000:00:12.0, irq:
> 12, latency: 32, mmio: 0xdf012000
> Dec  8 19:21:03 nasu kernel: bttv0: detected: Twinhan VisionPlus DVB-T
> [card=113], PCI subsystem ID is 1822:0001
> Dec  8 19:21:03 nasu kernel: bttv0: using: Twinhan DST + clones
> [card=113,insmod option]
> Dec  8 19:21:03 nasu kernel: bttv0: using tuner=4
> Dec  8 19:21:03 nasu kernel: tuner: Ignoring new-style parameters in
> presence of obsolete ones
> Dec  8 19:21:03 nasu kernel: bttv0: add subdevice "dvb0"
>
> # modprobe dvb-bt8xx
> Dec  8 19:21:16 nasu kernel: bt878: AUDIO driver version 0.0.0 loaded
> Dec  8 19:21:16 nasu kernel: bt878: Bt878 AUDIO function found (0).
> Dec  8 19:21:16 nasu kernel: PCI: Found IRQ 12 for device 0000:00:12.1
> Dec  8 19:21:16 nasu kernel: PCI: Sharing IRQ 12 with 0000:00:07.2
> Dec  8 19:21:16 nasu kernel: PCI: Sharing IRQ 12 with 0000:00:07.3
> Dec  8 19:21:16 nasu kernel: PCI: Sharing IRQ 12 with 0000:00:12.0
> Dec  8 19:21:16 nasu kernel: bt878(0): Bt878 (rev 17) at 00:12.1, irq:
> 12, latency: 32, memory: 0xdf010000
> Dec  8 19:21:16 nasu kernel: attach: checking "bt878 #0 [hw]"
> Dec  8 19:21:16 nasu kernel: find by pci: checking "bt878 #0 [hw]"
> Dec  8 19:21:16 nasu kernel: attach: "bt878 #0 [hw]", to card 0
> Dec  8 19:21:16 nasu kernel: DVB: registering new adapter (DST).
>
> # modprobe dst dst_type=2
> Dec  8 19:21:28 nasu kernel: bt878 find by dvb adap: checking "DST"
> Dec  8 19:21:28 nasu kernel: dst_check_ci: unable to recognize  or DCT-
> CI
> Dec  8 19:21:28 nasu kernel: dst_check_ci please email linux-
> dvb@linuxtv.org with this type in
> Dec  8 19:21:28 nasu kernel: DST type : terrestial TV
> Dec  8 19:21:28 nasu kernel: DST type flags : 0x4 symdiv
> Dec  8 19:21:28 nasu kernel: DVB: registering frontend 0:0 (DST
> CABLE)...
>
> # ls -al /dev/dvb/adapter0/frontend0
> crw-rw----  1 root video 212, 3 Nov 28 19:04 /dev/dvb/adapter0/frontend0
>
> # czap tv1
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
>   1 TV1:283000000:INVERSION_AUTO:5900000:FEC_NONE:QAM_128:512:650:17
>   1 TV1: f 283000000, s 5900000, i 2, fec 0, qam 4, v 0x200, a 0x28a
> status 00 | signal 0000 | snr 0000 | ber 00aeaa0e | unc 00ac9423 |
> status 00 | signal 0000 | snr 0000 | ber 00aeaa0e | unc 00ac9423 |
>
> At this point I should get a lock, but it prints "status 00..."
> forever...
>
> Also tested with dvbtune:
> # dvbtune  -f 283000000 -s 5900 -qam 128
> Using DVB card "DST CABLE"
> tuning DVB-C to 283000000, srate=5900000
> polling....
> Getting frontend event
> FE_STATUS:
> polling....
> polling.... (repeated n-times)
>
>
> - Toni