[Bug 28771] Vsync always on

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28771

--- Comment #3 from Jesse Barnes <jbarnes at virtuousgeek.org> 2010-06-28 15:41:03 PDT ---
Oh, for the DRI2 radeon driver you'll probably need to add an explicit option
somewhere; maybe the code path that used to check the vblank_mode flags is no
longer called.

See intel_screen.c:
...
DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
...

there's probably a similar section in the radeon driver somewhere.  You'll also
need to add support for the new DRI2 config extension to the driver, again see
intel_screen.c's intelScreenExtensions array:
...
    &dri2ConfigQueryExtension.base,
...

Hope that helps.

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