[linux-dvb] Problem with Avermedia 771 : IRQ lockup

Sylv at in argentieri at crans.org
Thu Sep 29 18:44:17 CEST 2005


Hi all,

I'm using :
- a PCI Avermdia DVB-T 771 card with an Asus Pundit-R.
- the DVB drivers from kernel 2.6.13.2. The card seems to be well 
detected (modprobe mt352, modprobe dvb-bt8xx) :
[------------------------------------------------------------------------------------]
Sep 25 16:03:20 katagen kernel: bttv: driver version 0.9.16 loaded
Sep 25 16:03:20 katagen kernel: bttv: using 8 buffers with 2080k (520 
pages) each for capture
Sep 25 16:03:20 katagen kernel: bttv: Bt8xx card found (0).
Sep 25 16:03:20 katagen kernel: ACPI: PCI Interrupt 0000:02:09.0[A] -> 
GSI 16 (level, low) -> IRQ 177
Sep 25 16:03:20 katagen kernel: bttv0: Bt878 (rev 17) at 0000:02:09.0, 
irq: 177, latency: 64, mmio: 0xf7c00000
Sep 25 16:03:20 katagen kernel: bttv0: detected: AVermedia AverTV DVB-T 
771 [card=123], PCI subsystem ID is 1461:0771
Sep 25 16:03:20 katagen kernel: bttv0: using: AVerMedia AVerTV DVB-T 771 
[card=123,autodetected]
Sep 25 16:03:20 katagen kernel: bttv0: gpio: en=00000000, out=00000000 
in=00f7ffcf [init]
Sep 25 16:03:20 katagen kernel: bttv0: using tuner=4
Sep 25 16:03:20 katagen kernel: bttv0: registered device video0
Sep 25 16:03:20 katagen kernel: bttv0: registered device vbi0
Sep 25 16:03:20 katagen kernel: bttv0: PLL: 28636363 => 35468950 . ok
Sep 25 16:03:20 katagen kernel: bttv0: add subdevice "remote0"
Sep 25 16:03:20 katagen kernel: bttv0: add subdevice "dvb0"
Sep 25 16:04:31 katagen kernel: bt878: AUDIO driver version 0.0.0 loaded
Sep 25 16:04:31 katagen kernel: bt878: Bt878 AUDIO function found (0).
Sep 25 16:04:31 katagen kernel: ACPI: PCI Interrupt 0000:02:09.1[A] -> 
GSI 16 (level, low) -> IRQ 177
Sep 25 16:04:31 katagen kernel: bt878(0): Bt878 (rev 17) at 02:09.1, 
irq: 177, latency: 64, memory: 0xf7d00000
Sep 25 16:04:31 katagen kernel: DVB: registering new adapter (bttv0).
Sep 25 16:04:31 katagen kernel: DVB: registering frontend 0 (Zarlink 
MT352 DVB-T)...
[------------------------------------------------------------------------------------]

I'm using mplayer as a viewer but the card does not work (currupted 
image and no sound). When I stop mplayer and restart it, it gives
[------------------------------------------------------------------------------------]
[...]
dvb_streaming_read, attempt N. 6 failed with errno 0 when reading 2048 bytes
dvb_streaming_read, attempt N. 5 failed with errno 0 when reading 2048 bytes
[...]
[------------------------------------------------------------------------------------]

and dmesg returns
[------------------------------------------------------------------------------------]
[...]
Sep 25 16:34:36 katagen kernel: bt878(0): irq FDSR risc_pc=0d7e4210
Sep 25 16:34:38 katagen kernel: bt878(0): irq FDSR risc_pc=0d7e4200
Sep 25 16:34:51 katagen kernel: bt878(0): irq FDSR risc_pc=0d7e4060
Sep 25 16:34:51 katagen kernel: bt878(0): irq FBUS risc_pc=0d7e4120
Sep 25 16:34:51 katagen kernel: bt878(0): irq FBUS risc_pc=0d7e4168
Sep 25 16:34:51 katagen kernel: bt878(0): irq FBUS risc_pc=0d7e41a8
Sep 25 16:34:51 katagen kernel: bt878(0): irq FBUS risc_pc=0d7e41f0
Sep 25 16:34:51 katagen kernel: bt878(0): irq FBUS risc_pc=0d7e4008
Sep 25 16:34:51 katagen last message repeated 50 times
Sep 25 16:34:51 katagen kernel: bt878(0): IRQ lockup, cleared int mask
[...]
[------------------------------------------------------------------------------------]

After that, mplayer and the kernel send the same message. I have to 
reload the modules to obtain (again) a corrupted image ...

The same type of problem is described in an old message
http://www.pvrguide.no-ip.com/bbs-old/viewtopic.php?t=26618&postdays=0&postorder=asc&start=0 

but don't give any solution.

Is this problem related to the hardware, the modules or the kernel version ?

Any idea ?

Thanks in advance for any help,

-- 
Sylvain Argentieri



More information about the linux-dvb mailing list