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gmichels
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Joined: 20 Jun 2003
Posts: 480
Location: Brazil
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 Posted: Tue Nov 16, 2004 3:24 am Post subject: Pinnacle PCTV Pro and sound (color system related) [solved] |
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Hi
I own a Pinnacle PCTV which I bought a few months ago while I was travelling abroad. In fact, the travelling part is the problem: the card is NTSC and my country's system is PAL-M.
That didn't seem to be a problem for "the other OS", as after a few configurations steps, everything was running ok. Today I started trying to get this thing working on linux.
After a few searches, I managed to get the card working using the kernel's (2.6.9-gentoo-r1) provided bttv driver and also tvtime (MUCH better than that slow PCTV Vision crap). After configuring tvtime to treat the input as PAL-M, I got a nice tv on my linux desktop. Even did a channel scan, worked like a charm.
It was only missing the sound, and that's where my problem starts. I narrowed the problem to these two facts:
- if I set the tuner to PAL-M, all I get is an irritating noise as sound output
- if I set the tuner to NTSC, the sound comes out alright, but the video is then black and white (and some other few glitches too)
I tried a bit of searching the forums and googling, but couldn't find anything helpful.
Here is some technical stuff that might help (I am loading bttv without any special options):
| Code: | dmesg relevant stuff
bttv0: Bt878 (rev 17) at 0000:01:0a.0, irq: 18, latency: 32, mmio: 0xd8000000
bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012
bttv0: using: Pinnacle PCTV Studio/Rave [card=39,autodetected]
bttv0: gpio: en=00000000, out=00000000 in=00ffefff [init]
tda9885/6/7: chip found @ 0x86
tuner: chip found at addr 0xc0 i2c-bus bt878 #0 [sw]
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: pinnacle/mt: id=5 info="NTSC / mono" radio=no
bttv0: using tuner=33
tuner: type set to 33 (MT20xx universal) by bt878 #0 [sw]
tuner: microtune: companycode=3cbf part=42 rev=90
tuner: microtune MT2050 found, OK
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 .. ok
lspci relevant output:
0000:01:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
Subsystem: Pinnacle Systems Inc. PCTV pro (TV + FM stereo receiver)
Flags: bus master, medium devsel, latency 32, IRQ 18
Memory at d8000000 (32-bit, prefetchable)
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
0000:01:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
Subsystem: Pinnacle Systems Inc. PCTV pro (TV + FM stereo receiver, audio section)
Flags: bus master, medium devsel, latency 32, IRQ 18
Memory at d8001000 (32-bit, prefetchable)
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2 |
Anyone have any idea?
Thanks!
Last edited by gmichels on Fri Dec 24, 2004 2:15 pm; edited 1 time in total |
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gmichels
Guru
Joined: 20 Jun 2003
Posts: 480
Location: Brazil
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| Posted: Fri Dec 24, 2004 2:14 pm Post subject: |
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Just to inform anyone who might have this problem.
Yesterday, while talking about this problem to tvtime developer vektor, he found a bug on the source code. My card uses the TDA9887 chip to decode audio, so the problem is on tda9887.c.
It's a very simple fix. Here's the patch:
| Code: | --- tda9887.c.orig 2004-12-24 01:23:14.645056464 -0200
+++ tda9887.c 2004-12-24 01:23:14.645056464 -0200
@@ -442,7 +442,7 @@
bCarrierMode = cQSS;
}
}
- if (t->std & V4L2_STD_NTSC) {
+ if (t->std & V4L2_STD_NTSC || t->std & V4L2_STD_PAL_M || t->std & V4L2_STD_PAL_N) {
if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) {
bCarrierMode = cIntercarrier;
} else { |
I have already sent the patch upstream so in future kernel releases it will be fixed. |
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