[mythtv-users] PVR350 TVOUT

Larry Howe larry.howe at comjet.com
Mon Jan 18 04:53:30 UTC 2010


On Sun, 2010-01-17 at 19:36 -0800, Robert McNamara wrote:
> On Sun, Jan 17, 2010 at 7:33 PM, Ben Kamen <bkamen at benjammin.net> wrote:
> > On 1/17/2010 9:02 PM, Larry Howe wrote:
> >>
> >> WHY???
> >
> > I've also been meaning to inquire as to why...
> >
> >  -Ben
> 
> Because no Myth dev owns or uses a PVR-350 out, the code had been
> neglected to the point unmaintainability, and because there's an X
> driver for PVR-350 TV out that obviates the need for Myth controls.
> The largest of these is that nobody willing and able to maintain the
> code exists.
> 
> Robert

Hi Robert,

Sounds like a good reason. Let me tell you where I am now, and if you
have any idea where I should go next, please let me know. Ubuntu 9.10,
my mythtv package is 0.22.0+fixes22594-0ubuntu1(karmic). When the system
boots I get

[   45.839118] ivtv0: Registered device video1 for encoder MPG (4096 kB)
...
[   45.839400] ivtv0: Registered device video17 for decoder MPG (1024 

so I see that video17 corresponds to the tv out, and this is the device
I have listed in mythfrontend under settings / tv / playback / pvr350.
When i do modprobe ivtvfb I get

[  131.174891] ivtvfb0: Framebuffer at 0xf5510000, mapped to 0xf9f90000,
size 1665k
[  131.288087] ivtvfb0: Framebuffer registered on ivtv0

so I guess it is on fb0. If I try to play back a video I get

2010-01-17 23:48:26.516 TV: StartPlayer(0, Watching WatchingPreRecorded,
main) -- begin
2010-01-17 23:48:26.993 IVD: ivtv version 1.4.1
2010-01-17 23:48:26.994 IVD Error: Failed to locate framebuffer
                        Did you load the ivtv-fb Linux kernel module?
2010-01-17 23:48:26.994 VideoOutput, Error: Not compiled with any
useable video output method.
2010-01-17 23:48:26.994 NVP(0), Error: Couldn't create VideoOutput
instance. Exiting..
2010-01-17 23:48:26.994 Unable to initialize video.

Is mythtv looking for an earlier version of ivtv (ivtv-fb instead of
ivtvfb)? Should I downgrade ivtv?

Thanks,
Larry




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