[Bug 91366] New: Vertical Sync broken on Broadwell

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91366

            Bug ID: 91366
           Summary: Vertical Sync broken on Broadwell
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: thatslyude at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Hi! So I've got another bug to report with the Broadwell chipset. Vertical sync
seems to be rather broken with Broadwell. I consistently see display tearing
around the top of my screen regardless of the conditions. Like the last bug,
I've been able to reproduce this with:

- ThinkPad T450s
- ThinkPad X1 carbon (latest revision)
- Chromebook Pixel

All running Fedora 22 and version 2.99.917 of the Intel Xorg driver.

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