x1250 horizontal tearing problems

[Alex Deucher]

On Wed, Apr 30, 2008 at 10:32 AM, Roland Scheidegger
<sroland at tungstengraphics.com> wrote:
> Don't the the WAIT_UNTIL_CRTC_VLINE, WAIT_UNTIL_FE_CRTC_VLINE,
>  WAIT_UNTIL_RE_CRTC_VLINE conditions only work correctly when the
>  CRTC_GUI_TRIG_VLINE register is configured appropriately?
>

Probably, it was just a quick and dirty patch as an example of what
could be done.

Alex

>  Roland
>
>
>
>  Alex Rades wrote:
>  > 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.
>  >
>  > On Wed, Apr 30, 2008 at 3:06 PM, Alex Rades <alerades at gmail.com
>
> > <mailto:alerades at gmail.com>> wrote:
>  >
>  >     Just FYI,
>  >     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)
>  >
>  >
>  >     On Tue, Apr 29, 2008 at 10:52 PM, Alex Deucher
>
> >     <alexdeucher at gmail.com <mailto:alexdeucher at gmail.com>> wrote:
>  >
>  >         On Tue, Apr 29, 2008 at 4:34 PM, Alex Rades <alerades at gmail.com
>
> >         <mailto:alerades at gmail.com>> wrote:
>  >         > Hi,
>  >         > when playing videos (either in xv or plain x11) on my x1250, I
>  >         always see
>  >         > horizontal (not diagonal, which are now fixed) tearing
>  >         problems. They seem
>  >         > related to vertical sync problems. Do you have suggestions?
>  >
>  >         We need sync to vblank support for textured video to properly deal
>  >         with that.  this untested hack may help, but it's not optimal:
>  >         http://www.botchco.com/alex/xorg/texvid_wait_vsync.diff
>  >
>  >         Alex
>  >
>  >
>  >
>  >
>  > ------------------------------------------------------------------------
>  >
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