linux-kernel - Re: [REGRESSION v4.7] i915 / drm crash when undocking from DP monitors

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Date:   Tue, 11 Oct 2016 16:55:22 +0300
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Vadim Lobanov <vadimplobanov@...il.com>,
        dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION v4.7] i915 / drm crash when undocking from DP monitors

On Sat, 08 Oct 2016, Vadim Lobanov <vadimplobanov@...il.com> wrote:
> I'm seeing a repeatable crash on my HP EliteBook 840 G2/2216 when
> booting it while in a docking station connected to two external
> DisplayPort monitors, undocking, and then either logging out or
> shutting down -- regardless of whether I've redocked it beforehand or
> not. Both logout and shutdown work great if I do not undock the laptop
> at all, so the badness correlates with the DP monitors going away.

Please file a bug at [1] with the info in this mail, add drm.debug=14
module parameter, and attach dmesg from boot to the problem into the
bug.

BR,
Jani.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel

-- 
Jani Nikula, Intel Open Source Technology Center