[Bug 102926] Tonga agd5f drm-next-4.15-wip powerplay display artifacts.

[Bug 102926] Tonga agd5f drm-next-4.15-wip powerplay display artifacts.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=102926

            Bug ID: 102926
           Summary: Tonga agd5f drm-next-4.15-wip powerplay display
                    artifacts.
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: adf.lists@gmail.com

R9285 on agd5f drm-next-4.15-wip  head I get some display glitches, nothing
really bad, just the odd lines and a bit of bounce sometimes it seems to be
memclk related.

Couldn't really bisect as I lock on older versions.

I started close to head where I don't lock but below isn't really valid as it
turned out that on what I thought were goods were probably only good because
memclk is stuck usally but not always high.

On head forcing memclk high or low makes the artifacts disappear.

This is just the commit that re-enables auto for memclk.

commit 76da74965138f4ab32113bf35b67321f4d7c3101
Author: Rex Zhu <Rex.Zhu@amd.com>
Date:   Thu Sep 14 21:05:18 2017 +0800

    drm/amd/powerplay: Add support for CI asics to hwmgr

    Add support for CI asics (Bonaire, Hawaii) to
    the powerplay hwmgr

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[Bug 102926] Tonga agd5f drm-next-4.15-wip powerplay display artifacts.

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https://bugs.freedesktop.org/show_bug.cgi?id=102926

--- Comment #1 from Christian König <deathsimple@vodafone.de> ---
At least I'm not the only one seeing this. Very visible during the Xonotic
start screen.

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[Bug 102926] Tonga agd5f drm-next-4.15-wip powerplay display artifacts.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=102926

--- Comment #2 from Tom St Denis <tom.stdenis@amd.com> ---
I've independently bisected it to the same commit on drm-next

commit 0b6b4cbf77c995a34a4ec3d705a636434dadc51a
Author: Rex Zhu <Rex.Zhu@amd.com>
Date:   Thu Sep 14 21:05:18 2017 +0800

    drm/amd/powerplay: Add support for CI asics to hwmgr

    Add support for CI asics (Bonaire, Hawaii) to
    the powerplay hwmgr

    Change-Id: Ia0a31f631dfd717807c16c6c166c994566f644c9
    Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>

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[Bug 102926] Tonga agd5f drm-next-4.15-wip powerplay display artifacts.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=102926

Andy Furniss <adf.lists@gmail.com> changed:

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

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