[ivtv-users] pvr-500 no signal on second tuner

[Robert]

On Fri, 11 Dec 2009 04:13:17 -0500 Andy wrote:
AW> > [   15.759167] cx25840 1-0044: firmware: requesting v4l-cx23885-avcore-01.fw
AW> > [   15.976478] cx25840 1-0044: firmware load i2c failure
AW> > [   19.814867] cx25840 0-0044: loaded v4l-cx23885-avcore-01.fw firmware (16382
AW> > bytes)
AW> 
AW> Yes.  This is further confirmation that communications with the second
AW> CX25843 chip isn' working.  The cx25840 module is misdetecting it as a
AW> CX23885 A/V core - a fallback position.

hmm... but it's loading that same firmware for the first tuner...

AW> So try
AW> 
AW> 	# modprobe ivtv cardtype=0,-1
AW> 
AW> to autodetect the first unit on the PVR-500 and to ignore the second
AW> unit.

ok... here's the dmesg with that modprobe option set:


[145922.152823] ivtv: Start initialization, version 1.4.1
 ... snip ...
[145922.282296] ivtv0: Initialized card: WinTV PVR 500 (unit #1)
[145922.283236] ivtv1: Initializing card 1
[145922.283239] ivtv1: Ignore card (detected cx23416 based chip)
[145922.283242] ivtv1: Error -19 on initialization
[145922.283338] ivtv: End initialization
 ... snip ...
[145922.910048] ivtv0:  info: Loading encoder image
[145922.910058] ivtv 0000:05:08.0: firmware: requesting v4l-cx2341x-enc.fw
[145922.977920] ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
[145923.170164] ivtv0:  info: Getting firmware version..
[145923.170265] ivtv0: Encoder revision: 0x02060039
[145923.189903] cx25840 0-0044: firmware: requesting v4l-cx23885-avcore-01.fw

so it ignores the 2nd tuner... but the avcore firmware is loaded for tuner 1 with no problem.

AW> You should try an test the board in a Windows machine.  The I2C
AW> subsystem debug messages are compiled out of the kernel by most distro's
AW> by default.  It's hard to see what is going on the i2c buses without
AW> recompiling the kernel. :(

I'd rather rebuild a kernel than run a windows machine. :-) Just tell me what
I need to enable in the kernel...