[Bug 77767] intel framebuffer broken by d978ef14456a38034f6c0e94a794129501f89200 in kernel 3.15-rc

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Apr 23 06:28:45 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=77767

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 58b87a391d67e35e3aa1fc6c80890b491d73ad46
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Apr 23 08:54:31 2014 +0100

    drm/i915: Discard BIOS framebuffers too small to accommodate chosen mode

    If the inherited BIOS framebuffer is smaller than the mode selected for
    fbdev, then if we continue to use it then we cause display corruption as
    we do not setup the panel fitter to upscale.

    Regression from commit d978ef14456a38034f6c0e94a794129501f89200
    Author: Jesse Barnes <jbarnes at virtuousgeek.org>
    Date:   Fri Mar 7 08:57:51 2014 -0800

        drm/i915: Wrap the preallocated BIOS framebuffer and preserve for KMS
fbcon v12

    v2: Add a debug message to track the discard of the BIOS fb.
    v3: Ville pointed out the difference between ref/unref

    Reported-by: Knut Petersen <Knut_Petersen at t-online.de>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77767
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Jesse Barnes <jbarnes at virtuousgeek.org>
    Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
    Signed-off-by: Jani Nikula <jani.nikula at intel.com>

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