[mythtv] ATI Color issues

Richard Wamsley rwamsley at scciowa.edu
Wed May 9 19:03:27 UTC 2007


Ok, that worked, however now I don't get an on screen display.
Is this a known issue with this work around?
Also after I recompiled my sound is about 1 second behind the video, I
re-commented the line and compiled again but sound is still off.  I then
tried running the mythfrontend as root, but that didn't fix the sound.

So I guess my two questions now are how can I get the OSD to work, and
fix my sound delay.

Also does anyone have any details as to what is wrong with the ATI
driver?  I will be happy to contact them about it, but I would need to
know what is wrong.

Thanks for the help so far.


On Mon, 2007-05-07 at 09:46 -0400, Bryan Mayland wrote:
> Richard Wamsley wrote:
> > I am using an ATI x1650 card in a laptop computer as a frontend system.
> > I have the latest proprietary driver loaded (required for other things
> > on this laptop).  When I try to watch live tv, or recorded tv the colors
> > are mixed and swapped.  For example I don't see green I get purple or
> > red.  When I go to watch recordings I get the preview in the bottom
> > corner.  In this preview all the colors are accurate.  I have tried the
> > xv setting and adjusting the hue and contrast, but I cannot get a
> > combination that makes all colors accurate.  I either have blue, green,
> > or red but never all three.  I have also copied the files over, and
> > watched them through Xine and all the colors are accurate.  It seems
> > like there is a process going on that isn't required since the preview
> > is correct.
> > I am using the SVN as of last weekend.
> >   
> This is an ATI bug from what I hear.  It can be fixed by defining 
> USE_HACK_FOR_BROKEN_I420_SUPPORT_IN_DRIVER in 
> libs/libmythtv/videoout_xv.cpp (search for it and just uncomment it).  
> You might also need to add the name of your Xvideo driver (as reported 
> by myth when it opens it) to calc_hue_base in the same file.
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