[mythtv-users] HD-PVR not recognized in kernels later than 3.8.0-17?

[Keith Pyle]

On 10/05/13 13:25, Phil Linttell wrote:
> Date: Sat, 05 Oct 2013 10:42:20 -0400
> From: Phil Linttell<phil.linttell at rogers.com>
> To: Discussion about mythtv<mythtv-users at mythtv.org>
> Subject: [mythtv-users] HD-PVR not recognized in kernels later than
> 	3.8.0-17?
> Message-ID:<5250254C.7010601 at rogers.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I have a problem where my hdpvr devices don't appear in any stock Ubuntu
> release kernel since 3.8.0-17.  While the USB devices are recognized, as
> follows:
>
> ...
> Everything else seems to work normally.
>
>
> As long as I boot with 3.8.0-17, /dev/video0 and /dev/video1 appear and
> myth records normally.  Boot with any later kernel (including upstream
> release kernels), and the device nodes don't appear.
>
> I realize that this isn't strictly a mythtv issue, but the largest
> number of linux HD-PVR users are probably on this list, and I'm hoping
> someone can suggest where to look for the problem or how to proceed.
It really depends on how your distribution's maintainer chose to 
configure the kernel you're using.  It is possible that the hdpvr driver 
isn't configured in your kernel.  Run:

zgrep HDPVR /proc/config.gz

You should see a line like:

CONFIG_VIDEO_HDPVR=y

if the module is built into your kernel, or

CONFIG_VIDEO_HDPVR=m

if it is configured as a loadable module.  I doubt you'll find the 
built-in case, as this would likely just work as you expect.  In the 
module configuration,

modprobe hdpvr

should load the module and create the /dev/videoN nodes.  If the line is

CONFIG_VIDEO_HDPVR=n

then your kernel isn't configured to support the HD-PVR and you'll need 
to reconfigure and rebuild it (or find one that is already done).