[mythtv-users] /dev/dvb disappeared

[Jarrod Harch]

Hi,

My mythtv box has recently stopped working for me. The problem is the 
/dev/dvb has disappeared, I'd previously used it for many months without 
problems. Not sure what I did to break it, or even exactly when.

The system is running Ubuntu 7.04 and has the stock Ubuntu kernel 
2.6.20-16-386. DVB card is a Twinhan mini-Ter.

dmesg shows:
...
[   32.376000] bttv: driver version 0.9.16 loaded
[   32.376000] bttv: using 8 buffers with 2080k (520 pages) each for capture
[   32.384000] bt878: AUDIO driver version 0.0.0 loaded
[   32.384000] bt878: Bt878 AUDIO function found (0).
[   32.384000] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 5
[   32.384000] PCI: setting IRQ 5 as level-triggered
[   32.384000] ACPI: PCI Interrupt 0000:00:09.1[A] -> Link [LNKB] -> GSI 
5 (level, low) -> IRQ 5
[   32.384000] bt878_probe: card id=[0x11822],[ Twinhan VisionPlus DVB ] 
has DVB functions.
[   32.384000] bt878(0): Bt878 (rev 17) at 00:09.1, irq: 5, latency: 32, 
memory: 0xe2001000
...

There is no DVB front-end registration message, which I know should be 
there.

lspci shows that the appropriate modules seem to be loading:

# lsmod | grep "dv\|br"
dvb_bt8xx              17156  0
dvb_core               78760  2 dvb_bt8xx,dst
bt878                  10920  2 dvb_bt8xx,dst
bttv                  170356  2 dvb_bt8xx,bt878
i2c_core               21648  9 
i2c_ec,dvb_bt8xx,dst,bttv,i2c_algo_bit,i2c_viapro,tveeprom,via686a,i2c_isa

Also, here is what scanpci finds:
...
pci bus 0x0000 cardnum 0x09 function 0x00: vendor 0x109e device 0x036a
  Brooktree Corporation  Device unknown

pci bus 0x0000 cardnum 0x09 function 0x01: vendor 0x109e device 0x0878
  Brooktree Corporation Bt878 Audio Capture
...

Does anyone have some ideas?

Many thanks,
Jarrod