On Tue, 24 Apr 2012 12:50:35 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote: > > + /* "flip pending" bit means done if this bit is set */ > > + I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE)); > > + > > Aha. I hope this works across platforms. I don't even know why this > bit exists, so I hope it's safe to change on a given chipset & platform. Patch splitting to come. So far I've tested on a 945gm and PineView and both are happy with the legacy PendingFlip status mode. And Daniel has tested on a 915g which was demonstrating the same trouble as our dear bugzilla reporter. One person I'd like to see I can get testing is Simon Farnsworth if he still has only of his 945s available for testing. -Chris -- Chris Wilson, Intel Open Source Technology Centre