[Bug 88938] [hsw] batchbuffer corruption switching windows with kwin egl composition enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88938

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Xorg hangs when switching   |[hsw] batchbuffer
                   |windows with composition    |corruption switching
                   |enabled                     |windows with kwin egl
                   |                            |composition enabled

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
The batchbuffer is completely overwritten with pixel data. Can you please try
with i915.enable_ppgtt=2 on the kernel commandline? The bug should still happen
eventually but it will help narrow down the culprit.

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