[Intel-gfx] [PATCH] drm/i915: Fix KMS regression on Sandybridge/CPT

[Zhenyu Wang]

On 2010.11.04 13:50:24 +0800, Zhenyu Wang wrote:
> On 2010.11.04 02:23:46 +0000, Chris Wilson wrote:
> > On Tue, 2 Nov 2010 14:24:22 +0800, Zhenyu Wang <zhenyuw at linux.intel.com> wrote:
> > > I don't think transcoder bpc setting should matter, but sorry that I'm short
> > > of time to track down which one extra read made the difference, my sandybridge
> > > laptop normally refuse to boot on first time.. ;)
> > > 
> > > The code operation is same as what we have in .36 kernel, so could you restore 
> > > behavior back first?
> > 
> > The original patch was unacceptable since it did more than it claimed to
> > in its changelog. Just disabling the Ironlake workaround and restoring the
> > FDI normal train on crtc disable is insufficient. I remain dubious that
> > adding the POSTING_READs is sufficient without at least some explanation
> > and some testing.
> > 
> 
> Chris, I try to retest your changed version on drm-intel-staging.
> It looks things work fine now with that. ;)
> 
> Sorry that I'm not quite sure why my last test failed...please pick that
> one to -fixes, so QA team could pick it up for validation. 
> 
> Thanks.
> 

oops, this was rejected, now with correct subscribed mail address to the list..

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