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From: Grant <emailgrant@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Re: xorg-server update causes horizontal line in movies
Date: Mon, 16 Oct 2006 17:23:19 -0700	[thread overview]
Message-ID: <49bf44f10610161723u2d1e0646ief1d75e871b6004@mail.gmail.com> (raw)
In-Reply-To: <eh0dnl$j2m$1@sea.gmane.org>

> > After I updated to the latest xorg-server this weekend, I started
> > noticing that movie playback has a horizontal line across the middle
> > of the screen that kind of looks like the image is broken.  It always
> > shows up when there is a lot of on-screen movement.  A flash makes it
> > very visible.  It looks like one half of the screen is moving a litle
> > slower than the other half of the screen.
> >
> > It happens in totem, mplayer, and vlc and mplayer terminal output
> > confirms that I am using xv.  I'm using nvidia-drivers and I've tried
> > the masked version with no luck.  Has anyone else seen this?
>
> That's due to the lack of vertical synchronisation.
>
> The graphicscard sends the picture to your monitor. While that happends,
> in the middle of the movie-picture, the movieplayer switches to the next
> frame of the movie. The result: you see the upper half of frame N and
> the lower half of frame N+1

Yeah, that's exactly what it looks like.  I tried specifying HorizSync
and VertRefresh in xorg.conf and also a Modeline, but they don't seem
to make any difference.  I got the data from my TV's EDID data.
Modeline, HorizSync, and VertRefresh are all defined under the monitor
section of xorg.conf right?

Section "Monitor"
      Identifier "monitor"
#      HorizSync 31-83
#      VertRefresh 56-85
      Modeline "1360x768" 86.96 1360 1480 1528 1774 768 778 783 817
-Hsync -Vsync
EndSection
Section "Screen"
      Identifier "screen"
      Device "device"
      Monitor "monitor"
      DefaultDepth 24
      SubSection "Display"
              Depth 24
              Modes "1360x768"
      EndSubSection
EndSection

- Grant
-- 
gentoo-user@gentoo.org mailing list



      reply	other threads:[~2006-10-17  0:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-16 16:44 [gentoo-user] xorg-server update causes horizontal line in movies Grant
2006-10-16 16:58 ` [gentoo-user] " Sven Köhler
2006-10-17  0:23   ` Grant [this message]

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