On Sunday 26 August 2007 04:14:45 Marty wrote:
> Hans Verkuil wrote:
> > OK, then it is either the cx25840 settings or the tuner settings.
> > Are you able to test with the composite or S-Video input? That way
> > we can eliminate the tuner.
> >
> > If you can, then please do that first. If it works fine if the
> > tuner is bypassed, then let me know and you can ignore the rest of
> > this mail.
> >
> > If it is still wrong, then continue below:
> >
> > What is the last working configuration? You will have to go back to
> > that and I'll give you some instructions that give me a cx25840
> > register dump which I can then compare with the current ones.
> >
> > It might be best if you get a register dump of the faulty version
> > first: you have to run v4l2-dbg as root (this is for ivtv versions
> > >= 1.0.0) with the following arguments:
> >
> > v4l2-dbg -d /dev/video1 -R type=i2cdrv,chip=cx25840
> >
> > Do this *while a capture is in progress*! To get consistent results
> > it's best to first rmmod ivtv and cx25840, then modprobe ivtv,
> > select a channel and run 'cat /dev/video1 >/dev/null'.
> >
> > This should give a register dump. If not, then make sure that the
> > kernel config option 'Enable advanced debug functionality' is on.
> > It's found in the section on Video capture adapters. If you compile
> > from the kernel, then select it there ('make menuconfig'), if you
> > compile from the v4l-dvb repostory, then run 'make menuconfig' in
> > the v4l-dvb directory. It's a bit of a hassle, but it's necessary
> > so that I can compare the two results.
>
> The register dump on the working configutaration failed. I don't
> have an S-Video cable handy, so I cannot easily test S-Video. If I
> don't get a register dump on the working configuration, I can get a
> cable tomorrow.
>
> Working configuration, linux 2.6.17.14, ivtv 0.7.4:
For 0.7.4 you need to run this command:
ivtvctl -d /dev/videoX --list-dec-registers
But in addition to this I'd appreciate if you could do a test with an
S-Video cable.
Regards,
Hans
> # zcat /proc/config.gz |grep CONFIG_VIDEO_ADV_DEBUG
> CONFIG_VIDEO_ADV_DEBUG=y
> # v4l2-dbg -d /dev/video0 -R type=i2cdrv,chip=cx25840
> ioctl: VIDIOC_DBG_G_REGISTER
>
> 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> ioctl: VIDIOC_DBG_G_REGISTER failed for 0x0
> ioctl: VIDIOC_DBG_G_REGISTER failed for 0x1
> ioctl: VIDIOC_DBG_G_REGISTER failed for 0x2
> ...
>
> Any idea what went wrong?
>
> Failing configuration, linux 2.6.23-rc3
>
> ioctl: VIDIOC_DBG_G_REGISTER
>
> 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 00000000: 00 00 00
>
> 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 00000100: 33 84 02 76 80 dd 04 07 0f 04 0a 10 fe e2 2b 00
> 00000110: e5 d6 98 00 00 8c 07 00 02 00 00 00 00 00 00 00
> 00000120: 00 00 01 10 87 b6 b0 50 f8 93 11 a0 ff 5f 20 11
> 00000130: 00 00 00 00 02 18 0a 00 00 00 00 00 00 00 36 00
> 00000140: 04 b0 00 00 10 32 54 76 00 00 00 00 00 00 00 00
> 00000150: 00 00 00 00 00 00 00 00 00 e1 86 10 00 e1 86 06
>
> 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 00000200: 00 00 00 00 ff ff 00 00 ff ff 00 00 00 00 00 00
> 00000210: 20 00 00 00 33 00 00 00 00 00 00 00 00 00 00 00
> 00000220: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00000230: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
> 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 00000400: 01 e0 04 00 32 25 13 00 00 80 00 00 00 91 7d 00
> 00000410: bf 0f ff 7f 00 7e 00 00 00 00 08 00 00 00 08 00
> 00000420: 7e 7e 00 00 66 66 66 66 66 66 66 66 66 66 66 66
> 00000430: 00 00 00 00 00 00 00 00 00 00 00 00 16 00 f0 ff
> 00000440: a9 0b 00 00 61 79 00 00 00 00 00 00 70 99 10 2c
> 00000450: 01 00 00 03 0d c4 08 26 77 88 00 54 00 00 00 00
> 00000460: 02 14 0a 34 6e ca 36 06 e7 00 00 08 20 f6 84 02
> 00000470: 7a 00 2d 5b 22 70 1e 1a 1f 02 50 66 1f 7c 08 00
> 00000480: d6 00 00 00 00 00 64 42 23 27 05 f8 dc 40 10 00
> 00000490: 8a 02 3f cd 00 03 1f 16 22 00 00 00 14 00 50 14
> 000004a0: 0f 02 1c 00 00 00 00 00 00 00 00 00 00 00 00 00
> 000004b0: 00 00 00 00 03 00 00 00 01 00 00 00 00 00 00 00
>
> 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
> 00000800: b8 37 22 13 fe fe ff 14 1f 04 11 00 00 00 1c e0
> 00000810: 00 01 ff 80 05 09 14 20 c0 31 00 00 d1 05 80 47
> 00000820: 00 28 00 80 44 e0 84 e0 a8 5c 72 00 f2 07 01 24
> 00000830: 20 a0 86 01 00 00 00 40 00 08 01 24 20 a0 86 01
> 00000840: 00 00 00 40 00 1c 80 00 20 00 00 00 00 00 00 00
> 00000850: 72 4f a1 00 30 00 00 00 00 00 00 00 00 78 00 00
> 00000860: 55 1b 04 00 00 04 00 00 00 00 33 46 69 87 05 00
> 00000870: 33 1c 04 00 1a 13 00 00 fa 01 fa 01 ec 45 87 07
> 00000880: 71 0a 80 0c 46 bf 03 40 01 71 01 71 00 00 00 00
> 00000890: 24 f4 03 40 01 71 01 71 14 11 ff 00 00 00 42 00
> 000008a0: 78 06 d6 12 87 51 00 00 de 53 03 00 b1 01 00 00
> 000008b0: d0 f3 00 00 00 00 00 00 c8 00 ff 0f 1f 00 0f 00
> 000008c0: 00 00 00 00 00 00 00 00 00 00 01 00 20 00 08 0f
> 000008d0: 70 38 06 01 2c 00 ff 7f 00 18 18 18 a3 33 ff 7f
> 000008e0: 70 38 06 01 24 00 ff 7f 00 18 18 18 a3 33 ff 7f
> 000008f0: fc 0a 02 aa 88 88 33 33 7c 86 01 08 7c 86 01 08
> 00000900: aa 4f 01 08 aa 4f 01 08 53 04 01 08 aa 4f 01 08
> 00000910: c9 00 b0 12 a0 00 00 00 a0 01 00 00 00 00 00 00
> 00000920: 00 48 3d f5 05 05 00 00 00 00 00 00 00 00 00 00
> 00000930: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00000940: 00 00 00 00 00 00 00 00 00 2e 3f 4a 00 33 64 ff
> 00000950: 00 00 00 ff 03 10 40 07 00 08 02 ff 00 00 00 00
> 00000960: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00000970: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00000980: 00 00 00 00 00 00 00 00 00 3f 00 3f 00 3f 00 3f
> 00000990: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 000009a0: 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00
>
>
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