[Bug 105018] Kernel panic when waking up after screen goes blank. - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 105018] Kernel panic when waking up after screen goes blank.
Date: Wed, 27 Jun 2018 18:51:48 +0000	[thread overview]
Message-ID: <bug-105018-502-5Tk8Fo35SA@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-105018-502@http.bugs.freedesktop.org/>

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https://bugs.freedesktop.org/show_bug.cgi?id=105018

Harry Wentland <harry.wentland@amd.com> changed:

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

--- Comment #36 from Harry Wentland <harry.wentland@amd.com> ---
The kernel BUG should be fixed since 4.17 by this commit

commit 20d4ac659c76034586a3ab79489b0940631a65de
Author: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Date:   Tue May 29 09:51:51 2018 -0400

    drm/amd/display: Fix BUG_ON during CRTC atomic check update

    For cases where the CRTC is inactive (DPMS off), where a modeset is not
    required, yet the CRTC is still in the atomic state, we should not
    attempt to update anything on it.

    Previously, we were relying on the modereset_required() helper to check
    the above condition. However, the function returns false immediately if
    a modeset is not required, ignoring the CRTC's enable/active state
    flags. The correct way to filter is by looking at these flags instead.

    Fixes: e277adc5a06c "drm/amd/display: Hookup color management functions"
    Bugzilla: https://bugs.freedesktop.org/106194

    Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
    Reviewed-by: Harry Wentland <harry.wentland@amd.com>
    Tested-by: Michel Dänzer <michel.daenzer@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

I'll mark this as resolved but please reopen if it still reproduces.

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