Description of problem:
We've noticed that in RHEL 7.4, when a machine is booted without a monitor connected (as nearly all of our workstations do), the gdm/X screen remains deactivated when a monitor is connected. X sees that the monitor has connected, and it's listed in xrandr's output, but in the past the monitor mode would get activated automatically.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot system without monitor
2. Attach monitor
The monitor isn't activated
For the monitor to be correctly recognized and activated.
i think the patch on bug 1618632 should fix this, moving to POST
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.