[Bug 92478] xorg-server-1.17.2 no longer detects Radeon card: blank screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92478

Attila Tóth <atoth at atoth.sote.hu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Driver/Radeon               |Server/General
           Hardware|Other                       |x86-64 (AMD64)
           Assignee|xorg-driver-ati at lists.x.org |xorg-team at lists.x.org
                 OS|All                         |Linux (All)

--- Comment #1 from Attila Tóth <atoth at atoth.sote.hu> ---
I was asked to do a bisect in another bug by Michel Dänzer.

2ce54b81391d36856641c2691bcae8bd13daba4c is the first bad commit
commit 2ce54b81391d36856641c2691bcae8bd13daba4c
Author: Aaron Plattner <aplattner at nvidia.com>
Date:   Tue Dec 30 09:13:16 2014 -0800

    xfree86: Add GPU screens even if there are no active GDevs

    xf86platformProbeDev creates GPU screens for any platform devices that were
not
    matched by a GDev in the loop above, but only if there was at least one
device.
    This means that it's impossible to configure a device as a GPU screen if
there
    is only one platform device that matches that driver.

    Instead, create a GPU screen (if possible) for any platform device that was
not
    claimed by the GDev loop.

    Signed-off-by: Aaron Plattner <aplattner at nvidia.com>
    Reviewed-by: Maarten Lankhorst <maarten.lankhorst at ubuntu.com>
    Acked-by: Alex Deucher <alexander.deucher at amd.com>
    (cherry picked from commit e36236eade412dd3894f75f78a7b3d7c1037e6c3)

:040000 040000 f5fbff105eb8dd75a0f8af3ec3f4072e9e2877d5
3d7f6e8225e0559ffe5e2bd69317f9dc521b3450 M      hw

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