[Bug 115061] New: sna/glamor will make screen tearing after quitting X on MacbookPro 11,4

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=115061

            Bug ID: 115061
           Summary: sna/glamor will make screen tearing after quitting X
                    on MacbookPro 11,4
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.5
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: ss1ha3tw at gmail.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

I am using Archlinux with MacbookPro11,4.
After updating to kernel version 4.5 and setting X to use sna (which is Xorg's
default) or glamor.
Quitting X will make screen tearing.
And I got got these kernel's error messages. 
[drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo
underrun on pipe A
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
But uxa will wont make screen tearing.
I can confirm that sna and glamor works perfect at 4.4.5.

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