[mythtv-users] Missing obvious PVR-350 config issue?

[John Kuhn]

I ran into this using knoppmyth, my problem was i had to set perms on 
/dev/fb0 to be world readable or at least give the mythtv user 
permission to use it.. chmod 666 /dev/fb0 then reboot to clear out any 
other weird settings

--John

Jason Lindquist wrote:

>
> On Aug 17, 2004, at 3:00 PM, Michael T. Dean wrote:
>
>> Jason Lindquist wrote:
>>
>>> After a few months' downtime, I have my MythTV box up and running 
>>> again.
>>> Oddly, both live TV and recordings via the PVR-350 card are faulty.
>>> There is no video (only a black screen) and one channel of audio is
>>> silent.  The card *is* functional, as I can dd /dev/video0 to a file
>>> and get an MPEG-2 which plays back just fine (picture and stereo audio)
>>> in QuickTime Player (on another host running OS X.)  Unfortunately,
>>> mythbackend seems to be losing the picture and one channel of audio.
>>
>
>> Is it the Xv colorkey problem?
>> http://www.gossamer-threads.com/lists/mythtv/users/72915#72761
>
>
> I don't run xine, so that wasn't likely.  I gave it a shot anyhow and 
> it changed nothing.
>
> Further poking around turned up this HOWTO on installing myth on 
> Fedora Core (which I'm not running, but there's enough relevant 
> information there anyways:)
>   http://wilsonet.com/mythtv/fcmyth.php
>
> I had tried dd'ing /dev/video0 directly to /dev/video16, and got the 
> same result as watching live TV or recordings in myth.  Running this 
> command from that HOWTO got playback working:
>   ivtvfbctl /dev/fb0 -noglobalalpha -localalpha
>
> Unfortunately, now myth's own menus were invisible.  Reversing the above:
>   ivtvfbctl /dev/fb0 -nolocalalpha
> made the menus visible again, but now a double of the image is offset 
> half a screen width to the right.
>
> It would seem mythtv-0.15.1 is doing something different with the 
> alpha controls compared to 0.13, which did not exhibit this problem.
>
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