<div dir="ltr"><div class="gmail_default" style="font-size:small">Actually, I was looking at the output from the xrander -q I posted in my first e-mail. It does show the display as connected still, but just drops the resolution from it (apparently indicating it is deactivated by X but not disconnected). So it doesn't seem like the udev rule would help.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I have tried udevadm monitor and do not see any events. I also tried adding a rule UBSYSTEM=="drm", ACTION=="change", RUN+="/usr/local/bin/fix_dell_<wbr>monitor.sh", but it doesn't seem like that ever gets executed.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Where is the logic for deactivating monitors and waking up from sleep actually handled? Is it the kernel, nvidia driver, X server, or somewhere else? Somehow Windows 10 does not seem to have the same issue.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Aug 12, 2017 at 6:44 AM, Thomas Lübking <span dir="ltr"><<a href="mailto:thomas.luebking@gmx.de" target="_blank">thomas.luebking@gmx.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Fri, Aug 11, 2017 at 03:08:40PM -0400, Greg Gorsuch wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I am wondering if there is some way to just "lock" the setup so that the<br>
monitor is always there if it is a registration problem, or change things<br>
so the monitor is not unrigestering itself.<br>
</blockquote>
<br></span>
Hardly for DP and proably driver specific anyway, but you could maybe<br>
setup an udev hook to auto-fix your stuff, see eg.<br>
<a href="https://bbs.archlinux.org/viewtopic.php?id=162363" rel="noreferrer" target="_blank">https://bbs.archlinux.org/view<wbr>topic.php?id=162363</a><br>
<br>
Cheers,<br>
Thomas<br>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Greg Gorsuch</div>
</div>