[Bug 96791] New: Screen flashes when changing brightness and screen flashes/tears on weston/wayland

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=96791

            Bug ID: 96791
           Summary: Screen flashes when changing brightness and screen
                    flashes/tears on weston/wayland
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.0.0
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: shakuganxxii at gmail.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 174281
  --> https://bugzilla.kernel.org/attachment.cgi?id=174281&action=edit
my kernel configuration

After updating to kernel 4.0.0, changing brightness via keyboard keys causes
the screen to flash.
It not flashing black and white, but instead when the brightness is high, it
flashes to a low brightness before changing back. When the brightness is low,
it flashes to a high brightness before changing back.

Running weston causes parts of the screen to flash and tear black and white.
The part that tears depends on where the mouse is; it usually tears everything
under the mouse. 

This didn't happen on kernels 3.14 - 3.19

00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 12)

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