Well, here's a late reply on this topic. Thanks for your response btw, Geert.
Yesterday I made a small breakthrough. I noticed I could get a better signal for a channel by lowering the frequency manually in the freq.py table. To test other channels I hacked together a new freq.py with all the frequencies subtracted by 3,5Mhz. As if by magic all the other problematic channels were cured as well!
So perhaps the tuner is off by a bit. It's not a very elegant solution, admittedly. I wonder if this qualifies for a refund/repair of the
Pinnacle card ;-)
If this is a bttv card, perhaps your driver is detecting the wrong
reference xtal speed?
No idea, I've never heard of xtal. This Pinnacle PCTV tuner is an mt2050 which I did have to patch manually into the tuner.c of SuSE Linux's kernel as I recall. Anyway, the bttv(7) is unchanged.
This is the relevant output I am aware of:
# zgrep -hEi "tuner|bttv" /var/log/messages-200410* Oct 4 08:56:17 phobos kernel: bttv: driver version 0.7.104 loaded Oct 4 08:56:17 phobos kernel: bttv: using 4 buffers with 2080k (8320k total) for capture Oct 4 08:56:17 phobos kernel: bttv: Host bridge is Silicon Integrated Systems [SiS] 650 Host Oct 4 08:56:17 phobos kernel: bttv: Bt8xx card found (0). Oct 4 08:56:17 phobos kernel: bttv0: Bt878 (rev 17) at 00:06.0, irq: 11, latency: 64, mmio: 0xdfdfe000 Oct 4 08:56:17 phobos kernel: bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012 Oct 4 08:56:17 phobos kernel: bttv0: using: BT878(Pinnacle PCTV Studio/Ra) [card=39,autodetected] Oct 4 08:56:17 phobos kernel: tuner: chip found @ 0xc0 Oct 4 08:56:17 phobos kernel: bttv0: i2c: checking for MSP34xx @ 0x80... not found Oct 4 08:56:17 phobos kernel: bttv0: pinnacle/mt: id=1 info="PAL / mono" radio=no Oct 4 08:56:17 phobos kernel: bttv0: using tuner=33 Oct 4 08:56:17 phobos kernel: tuner: type set to 33 (MT2032/MT2050) Oct 4 08:56:17 phobos kernel: tuner: MT2050 detected. Oct 4 08:56:17 phobos kernel: bttv0: i2c: checking for MSP34xx @ 0x80... not found Oct 4 08:56:17 phobos kernel: bttv0: i2c: checking for TDA9875 @ 0xb0... not found Oct 4 08:56:17 phobos kernel: bttv0: i2c: checking for TDA7432 @ 0x8a... not found Oct 4 08:56:17 phobos kernel: tuner: type already set (33) Oct 4 08:56:17 phobos kernel: bttv0: PLL: 28636363 => 35468950 .. ok Oct 4 08:56:17 phobos kernel: bttv0: registered device video3 Oct 4 08:56:17 phobos kernel: bttv0: registered device vbi0 Oct 5 08:41:33 phobos kernel: bttv: driver version 0.7.104 loaded Oct 5 08:41:33 phobos kernel: bttv: using 4 buffers with 2080k (8320k total) for capture Oct 5 08:41:33 phobos kernel: bttv: Host bridge is Silicon Integrated Systems [SiS] 650 Host Oct 5 08:41:33 phobos kernel: bttv: Bt8xx card found (0). Oct 5 08:41:33 phobos kernel: bttv0: Bt878 (rev 17) at 00:06.0, irq: 11, latency: 64, mmio: 0xdfdfe000 Oct 5 08:41:33 phobos kernel: bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012 Oct 5 08:41:33 phobos kernel: bttv0: using: BT878(Pinnacle PCTV Studio/Ra) [card=39,autodetected] Oct 5 08:41:33 phobos kernel: tuner: chip found @ 0xc0 Oct 5 08:41:33 phobos kernel: bttv0: i2c: checking for MSP34xx @ 0x80... not found Oct 5 08:41:33 phobos kernel: bttv0: pinnacle/mt: id=1 info="PAL / mono" radio=no Oct 5 08:41:33 phobos kernel: bttv0: using tuner=33 Oct 5 08:41:33 phobos kernel: tuner: type set to 33 (MT2032/MT2050) Oct 5 08:41:33 phobos kernel: tuner: MT2050 detected. Oct 5 08:41:33 phobos kernel: bttv0: i2c: checking for MSP34xx @ 0x80... not found Oct 5 08:41:33 phobos kernel: bttv0: i2c: checking for TDA9875 @ 0xb0... not found Oct 5 08:41:33 phobos kernel: bttv0: i2c: checking for TDA7432 @ 0x8a... not found Oct 5 08:41:33 phobos kernel: tuner: type already set (33) Oct 5 08:41:33 phobos kernel: bttv0: PLL: 28636363 => 35468950 .. ok Oct 5 08:41:33 phobos kernel: bttv0: registered device video3 Oct 5 08:41:33 phobos kernel: bttv0: registered device vbi0
The only mention of xtal is from a previous boot a long time ago:
# zgrep -hEi -B3 -A3 "xtal" /var/log/messages-2004* | grep -vE "CRON|Rejected IN" Mar 6 22:29:29 phobos kernel: bttv0: PLL can sleep, using XTAL (28636363). Mar 6 22:30:09 phobos kernel: bttv0: PLL: 28636363 => 35468950 .. ok -- Mar 6 22:53:20 phobos kernel: lo1 lo2 = 351 294 Mar 6 22:53:20 phobos kernel: num1 num2 div1a div1b div2a div2b= 3 b66 1c 3 23 6 Mar 6 22:53:20 phobos kernel: bufs is: 1 8f 1c cb 66 63 Mar 6 22:53:20 phobos kernel: bttv0: PLL can sleep, using XTAL (28636363). Mar 6 22:53:20 phobos kernel: mt2050_set_if_freq freq=189250000 Mar 6 22:53:20 phobos kernel: lo1 lo2 = 351 293 Mar 6 22:53:20 phobos kernel: num1 num2 div1a div1b div2a div2b= 3 0 1c 3 23 5 -- Mar 6 22:53:32 phobos kernel: lo1 lo2 = 351 294 Mar 6 22:53:32 phobos kernel: num1 num2 div1a div1b div2a div2b= 3 b66 1c 3 23 6 Mar 6 22:53:32 phobos kernel: bufs is: 1 8f 1c cb 66 63 Mar 6 22:53:32 phobos kernel: bttv0: PLL can sleep, using XTAL (28636363). Mar 6 22:53:32 phobos kernel: mt2050_set_if_freq freq=189250000 Mar 6 22:53:32 phobos kernel: lo1 lo2 = 351 293 Mar 6 22:53:32 phobos kernel: num1 num2 div1a div1b div2a div2b= 3 0 1c 3 23 5 -- Mar 7 03:19:18 phobos kernel: bttv0: PLL can sleep, using XTAL (28636363). Mar 7 03:20:31 phobos kernel: bttv0: PLL: 28636363 => 35468950 .. ok Mar 7 03:23:46 phobos kernel: btaudio: driver version 0.7 loaded [digital+analog] Jul 5 00:44:39 phobos last message repeated 4 times Jul 5 00:56:40 phobos kernel: bttv0: PLL can sleep, using XTAL (28636363).
- Gerrit
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