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Created attachment 1089507 [details]
/var/log/Xorg.0.log

Filed from caserun (https://tcms.engineering.redhat.com/run/260127/#caserun_10820168)

Version-Release number of selected component (if applicable):
RHEL-7.2-20151008.0
xorg-x11-server-Xorg-1.17.2-9.el7.x86_64
xorg-x11-drv-intel-2.99.917-8.20150615.el7.x86_64
kernel-3.10.0-322.el7.x86_64
linux-firmware-20150904-43.git6ebf5d5.el7.noarch
mesa-dri-drivers-10.6.5-3.20150824.el7.x86_64


Steps to Reproduce: 
 1. reboot machine
 2. disconnect monitor while machine is shutting down
 3. wait until machine is rebooted to GD


 1. connect display back to the machine



Actual results: 
No hotplug detection until running `DISPLAY=:0 xrandr`

Expected results:
Screen should be correectly powered on with native resolution

Created attachment 1089508 [details]
/var/log/messages

Setting the exception flag on this since I still haven't been able to get the fixes for this upstream

Patch(es) committed on kernel repository and an interim kernel build is undergoing testing

Patch(es) available on kernel-3.10.0-507.el7

This is _technically_ working in RC: RHEL-7.3-20160914.1
xorg-x11-server-Xorg-1.17.2-22.el7.x86_64
xorg-x11-drv-ati-7.6.1-3.20160215gitd41fccc.el7.x86_64
kernel-3.10.0-506.el7.x86_64
kernel-3.10.0-511.el7.x86_64
linux-firmware-20160830-49.git7534e19.el7.noarch
package mesa is not installed
mesa-dri-drivers-11.2.2-2.20160614.el7.x86_64
package xorg-x11-glamor is not installed

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2016-2574.html