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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [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#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [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:b.blaine.gardner@gmail.com" title="Blaine Gardner <b.blaine.gardner@gmail.com>"> <span class="fn">Blaine Gardner</span></a>
</span></b>
<pre>I am seeing the same issue on a Dell Precision 5510 when I plug my docking
station (with 2 connected screens) into my laptop. The system works if it is
started with the dock attached. This is a new issue that has popped up sometime
after early March.
<span class="quote">> May 02 09:47:47 grim kernel: BUG: unable to handle kernel NULL pointer dereference at (null)
> May 02 09:47:47 grim kernel: IP: drm_dp_get_mst_branch_device+0xc8/0x110 [drm_kms_helper]
> -- Reboot --</span >
Hardware: Dell Precision 5510 / i915 / i7-6820HQ
Kernel: 4.10.10-1-default
xorg-server: xorg-x11-server-1.19.3-1.1.x86_64
xf86-video-intel: not installed</pre>
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