[mythtv-users] PVR-350 TV-out Problem

Andrew Plumb aplumb at gmail.com
Fri Nov 5 17:23:58 UTC 2004

On Fri, 05 Nov 2004 11:45:02 -0500, Michael Starks
<mythtv at michaelstarks.com> wrote:
> On Fri, 2004-11-05 at 15:46 +0000, Paul Wheeler wrote:
> > The problem is that you dont have a framebuffer device /dev/fb0. What
> > ivtv output does dmesg give you?
> > Paul
> Thanks for the quick response.  On boot, when I do: 'dmesg | grep ivtv'
> nothing is returned.  However, if I first do a 'modprobe ivtv' followed
> by the previous command, I get the output included below.
> Also, in my modprobe.conf I have this line but I guess it's not working:
> install ivtv /sbin/modprobe --ignore-install ivtv; /sbin/modprobe ivtv-
> fb
> ivtv: ====================  END INIT IVTV  ====================
> ivtv-osd: Framebuffer module loaded (attached to ivtv card id 0)
> ivtv-osd: Framebuffer is at decoder-relative address 0x00510000 and has
> 1704960 bytes.
> ivtv-osd: screen coords: [0 0] -> [720 480]
> ivtv-osd: original global alpha = 208
> ivtv-osd: current OSD state = 39
> ivtv-osd: new global alpha = 208 (1 255 0)
> ivtv-osd: framebuffer at 0xf5510000, mapped to 0x1ba31000, size 1350k
> ivtv-osd: mode is 720x480x32, linelength=2880
> ivtv-osd: warning: mtrr_add() failed to add write combining region
> 0xf5400000-0xf5600000
> ivtv-osd: fb0: iTVC15 TV out frame buffer device
> ---
> End output.

Hi Michael,

>From the looks of things you do have the correct /dev/fb0 specified. 
After doing a modprobe ivtv, are you then able to start X? (try the
"startx" command)

If that works, you may have to do what I had to do and explicitly
force the loading of ivtv at boot by adding a "/sbin/modprobe ivtv"
line to your /etc/rc.local

Don't know why it doesn't load automagically, but adding the line
fixed it for me.



If you don't know what to do, do something.

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