Bug 1497303

Summary:	X no longer activates hotplugged monitors if started without one
Product:	Red Hat Enterprise Linux 7	Reporter:	Jacob Hunt <jhunt>
Component:	gnome-shell	Assignee:	Florian Müllner <fmuellner>
Status:	CLOSED ERRATA	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	medium	Docs Contact:	Jana Heves <jsvarova>
Priority:	high
Version:	7.4	CC:	alanm, cschalle, desktop-qa-list, fmuellner, jhunt, jkoten, ktoyama, lmiksik, mclasen, mkrajnak, rstrode, tpelka, vanhoof, vbenes
Target Milestone:	rc	Keywords:	PrioBumpGSS, Regression, ZStream
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mutter-3.28.3-4.el7	Doc Type:	Known Issue
Doc Text:	GDM does not activate hotplugged monitors When a machine is booted without a monitor connected, the GNOME Display Manager (GDM) screen remains deactivated when a monitor is plugged in. As a workaround, kill GDM while the monitor is plugged in by running: # systemctl restart gdm.service Alternatively, use the xrandr utility to activate the monitor.	Story Points:	---
Clone Of:
Clones:	1630981 (view as bug list)		Environment:
Last Closed:	2018-10-30 10:19:48 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1571842, 1630981

Description Jacob Hunt 2017-09-29 17:05:06 UTC

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):

mutter-3.22.3-11.el7.x86_64

How reproducible:

100%

Steps to Reproduce:
1. Boot system without monitor
2. Attach monitor

Actual results:

The monitor isn't activated

Expected results:

For the monitor to be correctly recognized and activated.

Comment 42 Ray Strode [halfline] 2018-09-19 15:59:22 UTC

i think the patch on bug 1618632 should fix this, moving to POST

Comment 51 errata-xmlrpc 2018-10-30 10:19:48 UTC

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://access.redhat.com/errata/RHSA-2018:3140