I've also just noticed that the above behaviour only applies when running xcompmgr. When there is no composite manager, The horizontal tearing is always present.<br><br><div class="gmail_quote">On Wed, Apr 30, 2008 at 3:06 PM, Alex Rades <<a href="mailto:alerades@gmail.com">alerades@gmail.com</a>> wrote:<br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Just FYI,<br>I've tried the patch. It solves the problem when running in fullscreen. If the window i'm playing the video in is smaller, sometimes the horizontal tearing appears again. Moreover, if i run a big enough window with  ARGB visual above the movie window, the tearing appears as well. (this problem does not occur with smaller ARGB windows)<div> <div></div><div class="Wj3C7c"><br> <br><div class="gmail_quote">On Tue, Apr 29, 2008 at 10:52 PM, Alex Deucher <<a href="mailto:alexdeucher@gmail.com" target="_blank">alexdeucher@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div>On Tue, Apr 29, 2008 at 4:34 PM, Alex Rades <<a href="mailto:alerades@gmail.com" target="_blank">alerades@gmail.com</a>> wrote:<br> > Hi,<br> > when playing videos (either in xv or plain x11) on my x1250, I always see<br> > horizontal (not diagonal, which are now fixed) tearing problems. They seem<br> > related to vertical sync problems. Do you have suggestions?<br> <br> </div></div>We need sync to vblank support for textured video to properly deal<br> with that.  this untested hack may help, but it's not optimal:<br> <a href="http://www.botchco.com/alex/xorg/texvid_wait_vsync.diff" target="_blank">http://www.botchco.com/alex/xorg/texvid_wait_vsync.diff</a><br> <font color="#888888"><br> Alex<br> </font></blockquote></div><br> </div></div></blockquote></div><br>