<p dir="ltr"><br>
On 27/01/2013 8:20 AM, "Peter Bennett (cats22)" <<a href="mailto:cats22@comcast.net">cats22@comcast.net</a>> wrote:<br>
><br>
> On 01/21/2013 09:43 AM, Peter Bennett (cats22) wrote:<br>
> > I have one backend/frontend combo, another dedicated frontend, and my<br>
> > general purpose desktop computer which also has the frontend installed.<br>
> ><br>
> > My problem is that on the desktop computer only, if I play a recording<br>
> > that came from a channel that broadcasts at 720p 60fps, the video plays<br>
> > in slow motion and the audio cuts in and out. The audio is probably just<br>
> > trying to stay in sync with the slow motion video. I appears that it may<br>
> > be playing the video at 30 fps instead of 60 fps.<br>
> ><br>
> > Programs recorded at 1080i 30fps play perfectly.<br>
> ><br>
> > The 720p 60fps recordings play perfectly on the other two frontends.<br>
> ><br>
> > This happens on mythtv 0.25 and 0.26.<br>
> ><br>
> > All the systems are running Ubuntu 12.04 and mythtv 0.26.<br>
> ><br>
> > The backend/frontend is the slowest CPU, 32bit pentium single core hyper<br>
> > threading about 7 years old.<br>
> > The dedicated frontend has a dual core pentium 64 bit cpu about 5 times<br>
> > as fast as the backend/frontend.<br>
> > The desktop has Intel i7 quad core with hyper threading, twice as fast<br>
> > as the dedicated frontend.<br>
> ><br>
> > The desktop does not have an NVIDIA adapter and is not set to use VDPAU.<br>
> > The other two have nvidia and VDPAU set. The desktop has ATI Radeon HD<br>
> > 4350. I used to have an ATI display adapter on the combo<br>
> > frontend/backend and I never noticed this issue there.<br>
> ><br>
> > The 720fps mpg files play perfectly on the desktop machine with VLC and<br>
> > the Ubuntu movie player program, just not with Mythtv front end.<br>
> ><br>
> > I have tried all the playback profiles, with no different results. I<br>
> > tried adjusting the time stretch in the playback but that was not the<br>
> > cause and I could not get it working correctly by changing that.<br>
> ><br>
> > I suspect there may be some software I have installed on the desktop<br>
> > that is affecting this playback, but I don't know what it could be.<br>
> ><br>
> > Any ideas?<br>
> ><br>
> > Peter<br>
><br>
> I tried installing the AMD display drivers from the AMD site</p>
<p dir="ltr">Which one? The newest releases have dropped the support for 3xxx and 4xxxx as far as i know. You need to go with older version read the release notes.</p>
<p dir="ltr">, following<br>
> the instructions at<br>
> <a href="http://askubuntu.com/questions/124292/what-is-the-correct-way-to-install-ati-catalyst-video-drivers-fglrx">http://askubuntu.com/questions/124292/what-is-the-correct-way-to-install-ati-catalyst-video-drivers-fglrx</a><br>
> This did not fix the slow-motion video, however they messed up the video<br>
> aspect ratio, everything was stretched vertically, so I uninstalled<br>
> those again.<br>
><br>
> Anybody have any ideas?<br>
><br>
> Peter<br>
><br>
><br>
> _______________________________________________<br>
> mythtv-users mailing list<br>
> <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
> <a href="http://www.mythtv.org/mailman/listinfo/mythtv-users">http://www.mythtv.org/mailman/listinfo/mythtv-users</a><br>
</p>