[Bug 70934] [Regression] Problem with colors (depth?) on DCE5 Barts (HD69xx)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70934

--- Comment #4 from Rafał Miłecki <zajec5 at gmail.com> ---
I was bisecting over commits touching drivers/gpu/ only, but the one I found
seems pretty likely:

eccea7920cfb009c2fa40e9ecdce8c36f61cab66 is the first bad commit
commit eccea7920cfb009c2fa40e9ecdce8c36f61cab66
Author: Alex Deucher <alexander.deucher at amd.com>
Date:   Mon Mar 26 15:12:54 2012 -0400

    drm/radeon/kms: improve bpc handling (v2)

    Improve handling of bpc (bits per color) in radeon.
    In most cases we want 8 except for HDMI, DP, LVDS, and eDP.

    v2: handle DP better.

    Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
    Tested-by: Lennert Buytenhek <buytenh at wantstofly.org>
    Signed-off-by: Dave Airlie <airlied at redhat.com>

I'll verify that further tomorrow.

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