[Bug 97242] New: [SKL] Bad mouse cursor flickering since 4.8-rc1 [regression]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97242

            Bug ID: 97242
           Summary: [SKL] Bad mouse cursor flickering since 4.8-rc1
                    [regression]
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: direx at betriebsdirektor.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 125590
  --> https://bugs.freedesktop.org/attachment.cgi?id=125590&action=edit
dmesg from 4.8-rc1 with drm.debug=0xe

On Kernel 4.8-rc1 the mouse cursor flickers horribly when moved around and some
parts of the display (around the cursor) fail to update properly and flicker
randomly. Sometimes I have multiple mouse cursors on my display and sometimes
covered windows come through in areas around the cursor.

This does not happen on earlier kernels (4.6 and 4.7 work fine, for example),
so it must me a regression.

Hardware: Lenovo Thinkpad L460 in Ultra Dock with DVI+HDMI monitor
CPU: Core i5-6200U
Software: Arch Linux with KDE Plasma Desktop
Kernel: 4.8-rc1

Both dmesg and Xorg.log look normal.

Might possibly be related to bug 96983.

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