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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Regression with Dell TB16 dock and Linux kernel 4.16.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106250#c22">Comment # 22</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Regression with Dell TB16 dock and Linux kernel 4.16.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106250">bug 106250</a>
from <span class="vcard"><a class="email" href="mailto:stanislav.lisovskiy@intel.com" title="Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>"> <span class="fn">Stanislav Lisovskiy</span></a>
</span></b>
<pre>I've located a problem. It was in xserver/ddx code, at some point thinking crtc
hasn't changed, while it did. I've made some raw patch for xserver and it works
for me, but I haven't sent it yet, because basically it just removes part of
crtc checking code, which prevents drm_mode_setcrtc ioctl to be done.
As a temporary workaround you can try xrandr --output (your not working output
name) --crtc (some number here) - this will force drm_mode_setcrtc call to be
made and the screen will be back.
I can also post my temporary fix here, however it requires rebuilding xserver
from scratch and then installing it.</pre>
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