[Bug 107840] New: Framebuffer: Driver reports wrong max dimensions

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Sep 5 12:46:14 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=107840

            Bug ID: 107840
           Summary: Framebuffer: Driver reports wrong max dimensions
           Product: DRI
           Version: unspecified
          Hardware: All
               URL: https://cgit.freedesktop.org/drm-tip/tree/drivers/gpu/
                    drm/i915/intel_display.c#n15234
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: kristian.robertsen at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

The driver reports wrong maximum framebuffer dimensions for newer generation
GPUs. 

While (at least) 7th gen and up support 16384x16384 the driver reports
8192x8192 for any 4th gen GPU or higher.

Causes display servers to crash with ultrawide and 4K monitors.

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