Hello,
I recently wiped my working FC4/old IVTV box and replaced it with
FC7 and the latest ivtv, but it seems I am now experiencing some minor
distortion, as can be seen in these two images:
http://chris.luethy.net/get_photo.php?id=657
http://chris.luethy.net/get_photo.php?id=658
Here is the dmesg output:
dmesg | tac |
> sed -n '/=\ \ END INIT IVTV\ \ =/,/= START INIT IVTV =/p;
> /= START INIT IVTV =/q' |
> tac
ivtv: ==================== START INIT IVTV ====================
ivtv: version 0.10.2 (tagged release) loading
ivtv: Linux version: 2.6.21-1.3228.fc7 SMP mod_unload 686 4KSTACKS
ivtv: In case of problems please include the debug info between
ivtv: the START INIT IVTV and END INIT IVTV lines, along with
ivtv: any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected Hauppauge card (cx23416 based)
ACPI: PCI Interrupt 0000:05:08.0[A] -> GSI 48 (level, low) -> IRQ 23
ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv0: Encoder revision: 0x02060039
tveeprom 1-0050: Hauppauge model 23552, rev D492, serial# 8023885
tveeprom 1-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 1-0050: second tuner model is Philips TEA5768HL FM Radio (idx
101, type 62)
tveeprom 1-0050: audio processor is CX25843 (idx 37)
tveeprom 1-0050: decoder processor is CX25843 (idx 30)
tveeprom 1-0050: has radio, has no IR receiver, has no IR transmitter
ivtv0: Autodetected WinTV PVR 500 (unit #1)
tuner 1-0043: chip found @ 0x86 (ivtv i2c driver #0)
tda9887 1-0043: tda988[5/6/7] found @ 0x43 (tuner)
tuner 1-0060: TEA5767 detected.
tuner 1-0060: chip found @ 0xc0 (ivtv i2c driver #0)
tuner 1-0060: type set to 62 (Philips TEA5767HN FM Radio)
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
cx25840 1-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
cx25840 1-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: Registered device video0 for encoder MPEG (4 MB)
ivtv0: Registered device video32 for encoder YUV (2 MB)
ivtv0: Registered device vbi0 for encoder VBI (1 MB)
ivtv0: Registered device video24 for encoder PCM audio (1 MB)
ivtv0: Registered device radio0 for encoder radio
tuner 1-0061: type set to 57 (Philips FQ1236A MK4)
ivtv0: Initialized WinTV PVR 500 (unit #1), card #0
ivtv: ====================== NEXT CARD ======================
ivtv1: Autodetected Hauppauge card (cx23416 based)
ACPI: PCI Interrupt 0000:05:09.0[A] -> GSI 49 (level, low) -> IRQ 24
ivtv1: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv1: Encoder revision: 0x02060039
tuner 2-0043: chip found @ 0x86 (ivtv i2c driver #1)
tda9887 2-0043: tda988[5/6/7] found @ 0x43 (tuner)
tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #1)
cx25840 2-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #1)
cx25840 2-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #1)
tveeprom 2-0050: Hauppauge model 23552, rev D492, serial# 8023885
tveeprom 2-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 2-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 2-0050: second tuner model is Philips TEA5768HL FM Radio (idx
101, type 62)
tveeprom 2-0050: audio processor is CX25843 (idx 37)
tveeprom 2-0050: decoder processor is CX25843 (idx 30)
tveeprom 2-0050: has radio, has no IR receiver, has no IR transmitter
ivtv1: Correcting tveeprom data: no radio present on second unit
ivtv1: Autodetected WinTV PVR 500 (unit #2)
ivtv1: Registered device video1 for encoder MPEG (4 MB)
ivtv1: Registered device video33 for encoder YUV (2 MB)
ivtv1: Registered device vbi1 for encoder VBI (1 MB)
ivtv1: Registered device video25 for encoder PCM audio (1 MB)
tuner 2-0061: type set to 57 (Philips FQ1236A MK4)
ivtv1: Initialized WinTV PVR 500 (unit #2), card #1
ivtv: ==================== END INIT IVTV ====================
An interesting note: I was using the latest stable ivtv for my kernel
(2.6.21), which is ivtv version 0.10.3, and thinking it might help to
regress, I installed verision 0.10.2 and it seemed to lessen the
distortion. Though the distortion is rather random, so this may not be
the case.
Also, some interesting effects:
* The distortion seems heaviest on images that have horizontal bars at
the top and bottom and lots of red, like the Daily Show. However, quite
oddly, when there's a quick camera change to something like a normal
photograph (no bars), the distortion stops right with the camera change.
This leads me to believe the distortion is related to the image on screen.
Is this known as "ghosting"? I attempted v4l2-ctl --set-ctrl
temporal_filter=0 but that does not fix the problem. I'm not sure if
what's going on is even known as ghosting.
Also, I know the card is fine and the cooling is fine, as I have not
changed any of the hardware since I wiped the box and it was working
fine then for months and months.
I greatly appreciate any help that can be offered!
- Chris Thielen
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