[Bug 188478] [NEW] Hardware issue's resolving bt878 & recent kernels

Amon_Re ochal at kefren.be
Sun Feb 3 00:03:58 UTC 2008


Public bug reported:

Binary package hint: linux-image

The recent versions of linux have an incompability with PinnacleSys PCTV
Studio/Rave PCI tv-tuner cards.

There are currently two issue's, inability to select/scan tv-channels, for which there is a work-arround (mentioned later in this post).
The second issue sofar has proven to be more challenging, the bt878 module is unable to properly recognise the sound-componant of the PCI device, older kernels, like the dapper kernels, work properly, and bt878 works perfectly on those kernels.

-----------------
lspci output:

06:00.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
	Subsystem: Pinnacle Systems Inc. PCTV pro (TV + FM stereo receiver, audio section)
	Flags: medium devsel, IRQ 20
	Memory at 50000000 (32-bit, prefetchable) [size=4K]
	Capabilities: [44] Vital Product Data
	Capabilities: [4c] Power Management version 2

06:03.0 FireWire (IEEE 1394): Agere Systems FW323 (rev 70) (prog-if 10 [OHCI])
	Subsystem: Agere Systems FW323
	Flags: bus master, fast Back2Back, medium devsel, latency 32, IRQ 19
	Memory at 50100000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [44] Power Management version 2

--------
dmesg | grep bt:

[   41.508703] bttv: driver version 0.9.17 loaded
[   41.508705] bttv: using 4 buffers with 2080k (520 pages) each for capture
[   41.508748] bttv: Bt8xx card found (0).
[   41.508771] bttv0: Bt878 (rev 17) at 0000:06:00.0, irq: 20, latency: 32, mmio: 0x50001000
[   41.508777] bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012
[   41.508779] bttv0: using: Pinnacle PCTV Studio/Rave [card=39,insmod option]
[   41.508781] bttv0: gpio config override: mask=0x1, mux=0x1,0x1,0x1,0x1
[   41.508802] bttv0: gpio: en=00000000, out=00000000 in=00ff67ff [init]
[   41.509139] bttv0: i2c: checking for MSP34xx @ 0x80... not found
[   41.509733] bttv0: miro: id=25 tuner=1 radio=no stereo=no
[   41.509735] bttv0: tuner type=33
[   41.509736] bttv0: i2c: checking for MSP34xx @ 0x80... not found
[   41.510332] bttv0: i2c: checking for TDA9875 @ 0xb0... not found
[   41.511157] bttv0: i2c: checking for TDA7432 @ 0x8a... not found
[   41.721720] tuner 0-0060: chip found @ 0xc0 (bt878 #0 [sw])
[   41.918577] bttv0: registered device video0
[   41.918590] bttv0: registered device vbi0
[   41.918610] bttv0: PLL: 28636363 => 35468950 .. ok
[   41.972211] bt878: AUDIO driver version 0.0.0 loaded
[   42.012415] bt878: Bt878 AUDIO function found (0).
[   42.012434] bt878_probe: card id=[0x1211bd], Unknown card.
[   42.012441] bt878: probe of 0000:06:00.1 failed with error -22


----------------
work-arround for channel issue:

Add the following to /etc/modprobe.d/options:

options bttv radio=0 card=39 tuner=33 gbuffers=4

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Hardware issue's resolving bt878 & recent kernels
https://bugs.launchpad.net/bugs/188478
You received this bug notification because you are a member of Kernel
Bugs, which is a bug contact for linux-meta in ubuntu.




More information about the kernel-bugs mailing list