I recently upgraded my motherboard to an nforce4 based chipset. Before the upgrade, both tuners worked fine (using 0.4.0 and 2.6.13) After the upgrade (and recompiled kernel of the same version) only the second tuner works. The first tuner outputs nothing (cat /dev/ v4l/video0 > test.mpg results in a zero k file). Even with ivtv_debug set to 3, there are no errors in the dmesg output. Can anyone help with this problem? I have also tried the 0.6.1 with 2.6.16.5 with the same results. Below is the ivtv dmesg output:

ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.6.1 (tagged release) loading
ivtv:  Linux version: 2.6.16.5 SMP K8 REGPARM gcc-4.0
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 WinTV PVR-150 card (cx23416 based)
tuner 0-0060: TEA5767 detected.
tuner 0-0060: chip found @ 0xc0 (ivtv i2c driver #0)
tuner 0-0060: type set to 62 (Philips TEA5767HN FM Radio)
tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
tda9887 0-0043: chip found @ 0x86 (ivtv i2c driver #0)
cx25840 0-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
cx25840 0-0044: loaded v4l-cx25840.fw firmware (14264 bytes)
wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
tveeprom 0-0050: Hauppauge model 23552, rev D592, serial# 2968242
tveeprom 0-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 0-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101, type 62)
tveeprom 0-0050: audio processor is CX25843 (idx 37)
tveeprom 0-0050: decoder processor is CX25843 (idx 30)
tveeprom 0-0050: has radio, has no IR remote
ivtv0: This is the first unit of a PVR500
ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv0: Encoder revision: 0x02050032
ivtv0: Create DMA encoder MPEG stream: 0 x 32768 buffers (0KB total)
ivtv0: Create DMA encoder YUV stream: 0 x 10800 buffers (0KB total)
ivtv0: Create DMA encoder VBI stream: 0 x 17472 buffers (0KB total)
ivtv0: Create DMA encoder PCM audio stream: 0 x 4608 buffers (0KB total)
ivtv0: Create encoder radio stream
tuner 0-0061: type set to 57 (Philips FQ1236A MK4)
ivtv0: Initialized WinTV PVR 500 (unit #1), card #0
ivtv:  ======================  NEXT CARD  ======================
ivtv1: Autodetected Hauppauge WinTV PVR-150 card (cx23416 based)
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #1)
tda9887 1-0043: chip found @ 0x86 (ivtv i2c driver #1)
cx25840 1-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #1)
cx25840 1-0044: loaded v4l-cx25840.fw firmware (14264 bytes)
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #1)
tveeprom 1-0050: Hauppauge model 23552, rev D592, serial# 2968242
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 remote
ivtv1: This is the second unit of a PVR500
ivtv1: Correcting tveeprom data: no radio present on second unit
ivtv1: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv1: Encoder revision: 0x02050032
ivtv1: Create DMA encoder MPEG stream: 0 x 32768 buffers (0KB total)
ivtv1: Create DMA encoder YUV stream: 0 x 10800 buffers (0KB total)
ivtv1: Create DMA encoder VBI stream: 0 x 17472 buffers (0KB total)
ivtv1: Create DMA encoder PCM audio stream: 0 x 4608 buffers (0KB total)
tuner 1-0061: type set to 57 (Philips FQ1236A MK4)
ivtv1: Initialized WinTV PVR 500 (unit #2), card #1
ivtv:  ====================  END INIT IVTV  ====================


Geoff

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