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Date: Mon, 19 Jan 2015 11:04:04 +0000
From: Chris Wilson <chris@chris-wilson.co.uk>
To: Daniel Vetter <daniel.vetter@intel.com>
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Subject: Re: [Intel-gfx] [BUG, bisect] drm/i915: mouse pointer lags and
 overshoots
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On Mon, Jan 19, 2015 at 11:51:43AM +0100, Daniel Vetter wrote:
> There's also an issue in (most) X drivers which exaberates this
> issues: When changing the cursor buffer the X cursor code does a a)
> disable cursor b) update cursor image c) enable cursor cycle.

Notably not -intel on which the bug has been observed. And more
importantly, the slow downs don't seem to correlate with cursor change,
just cursor movement.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre