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<body><span class="vcard"><a class="email" href="mailto:elizabethx.de.la.torre.mena@intel.com" title="Elizabeth <elizabethx.de.la.torre.mena@intel.com>"> <span class="fn">Elizabeth</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [skl] [drm] BUG: unable to handle kernel NULL pointer dereference at (null) [drm_kms_helper]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100727">bug 100727</a>
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<td>REOPENED
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [skl] [drm] BUG: unable to handle kernel NULL pointer dereference at (null) [drm_kms_helper]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100727#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [skl] [drm] BUG: unable to handle kernel NULL pointer dereference at (null) [drm_kms_helper]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100727">bug 100727</a>
from <span class="vcard"><a class="email" href="mailto:elizabethx.de.la.torre.mena@intel.com" title="Elizabeth <elizabethx.de.la.torre.mena@intel.com>"> <span class="fn">Elizabeth</span></a>
</span></b>
<pre>(In reply to carbenium from <a href="show_bug.cgi?id=100727#c10">comment #10</a>)
<span class="quote">> I just hit this on 4.12.4-041204-generic x86_64
>
> Hardware: Lenovo T440p / i7-4710MQ / NVIDIA GK208
>
> Laptop is connected to a docking station and the two Dell U2515H displays
> are chained (DP 1.2).
> The crash was triggered by switching inputs on the display connected
> directly to the docking station.</span >
Hello Carbenium, could you try to reproduce with latest kernel versions or tip
and if reproducible attach dmesg with debug info: drm.debug=0x1e log_bug_len=2M
on grub. Thank you.
<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>
<a href="https://www.kernel.org">https://www.kernel.org</a></pre>
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