[mythtv-users] 24fps Movies and new 120Hz LCD TV
jyavenard at gmail.com
Thu Mar 5 20:25:57 UTC 2009
2009/3/6 James Oltman <cnlibmyth at gmail.com>
> I just purchased a brand new 52" Samsung LCD from Newegg (LN52A650). It's
> fantastic! Great colors and everything looks sharp. No dead pixels
> either. Anyway, I hooked up my frontend to the panel using VGA (HDMI cables
> are on their way as we speak). I have the color adjusted on that input so
> it looks better using the sudo nvidia-settings command. However, I've
> noticed that when playing ISO movies, the TV is showing 60Hz instead of the
> 24hz (24fps). I have been looking online, but haven't found anything
> conclusive as to how I can tell xine, mplayer or the Internal player to use
> 24hz. Someone said to wrap up the command (mplayer, xine, etc) in an xrandr
> script. Is anyone doing something similar to this now? Is there a generic
> script that will detect the native frame rate of a video, then pass that to
> the xrandr command which then passes to a player? I'm planning on
> purchasing a PCI 9400 from newegg ($75). Would this help in my quest for
> smooth, perfect video? Thanks for the assistance!
mythtv, xine, mplayer etc.. won't change the TV refresh rate to match the
using this patch: http://svn.mythtv.org/trac/ticket/5643 will help but there
are inner problem when using nvidia card. nvidia drivers do not report the
actual refresh rate but a unique value starting from 50.
As such, I updated those patches to be able to handle those weird reported
If you search this distribution list, last month I posted the script I use
for starting mplayer that does the same job: it will use xrandr to set the
right refresh rate, then start mplayer...
Another thing to be aware of, if you're not using vdpau but Xv, do not do
this. There's a bug in the nvidia drivers, when using a display at 24Hz to
watch content at 24 fps, then X11 start using 100% of the CPU, and
everything crawl to an end...
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the mythtv-users