[mythtv-users] Can't adjust contrast, brightness etc in Mythtv .20
mythtv at tsaiberspace.net
Wed Jan 17 07:49:14 UTC 2007
On Tue, Jan 16, 2007 at 09:48:23PM -0500, Daniel Kristjansson wrote:
> On Tue, 2007-01-16 at 16:18 -0800, Robert Tsai wrote:
> > On Tue, Jan 16, 2007 at 04:16:38PM -0800, Robert Tsai wrote:
> > > On Tue, Jan 16, 2007 at 06:07:04PM -0600, Randy Ferrill wrote:
> > > > When I hit the F key and try to adjust birghtness , contrast , etc
> > > > it changes to a -1 and won't change.
> > > >
> > > > PVR-250 and Nvidia Geforce 4MX card, FC5 and Mythtv .20.
> > > >
> > > > I searched the archive and found 1 posting but no answer or replies
> > >
> > > I see the same thing. A few weeks ago I traced this problem down to a
> > > failure in VideoOutputXv::SetPictureAttribute; one of the X or Xv
> > > calls is failing.
> > >
> > > The caller TV::DoChangePictureAttribute does not check for the
> > > sentinel "-1" return value; hence you see "-1" in your OSD.
> > >
> > > I don't know why the X/Xv calls are failing. Too many things have
> > > happened since this was last working (distro/X.org upgrade, kernel
> > > upgrade, NVidia driver upgrade, etc.).
> > If it matters:
> > - AMD64
> > - NVidia FX5200, v9746 (also with a few prior versions)
> > - Linux 22.214.171.124 (also with 126.96.36.199)
> > - Ubuntu Edgy Eft
> > I think things were working with Dapper Drake.
> The latest nVidia drivers default to not supporting XVideo picture
> attributes. You need to add this is the appropriate place in your
> Option "XvmcUsesTextures" "false"
> This will also increase performance on the FX5000 series and earlier
This didn't do anything for me. The NVidia documentation also says
that "false" is the default:
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