Bug 1714981

Summary:	xrandr and multiple display support broken after updating to the latest version
Product:	[Fedora] Fedora	Reporter:	Shaji <djshaji+redhat>
Component:	xorg-x11-server	Assignee:	X/OpenGL Maintenance List <xgl-maint>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	bskeggs, caillon+fedoraproject, jglisse, john.j5live, ofourdan, rhughes, rstrode, sandmann, xgl-maint
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	xorg-x11-server-1.20.5-3.fc30	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-30 00:56:47 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:

Description Shaji 2019-05-29 10:25:14 UTC

Description of problem:
External monitor support (HDMI output) + xrandr functionality is broken

Version-Release number of selected component (if applicable):
xorg-x11-server-Xorg-1.20.4-4.fc31.x86_64

How reproducible:
ALWAYS.
xrandr does not work. External displays cannot be configured. Any attempt to configure displays after attaching HDMI output results in blank screen.

Steps to Reproduce:
1. plug in external display (e.g. HDMI)
2. try to configure (e.g. xrandr --output HDMI-0 --left-of eDPI-0
3. 

Actual results:
Screen goes blank

Expected results:
monitors ought to be configured

Additional info:
Started happening after updating to the latest xserver. Worked perfectly before that.

Comment 1 Olivier Fourdan 2019-05-29 11:35:06 UTC

Can you please post the Xorg logs to make sure which driver you are using? (I suspect modesettings)

(That would be the last atomic changes for modesettings driver).

Comment 2 Shaji 2019-05-31 11:05:09 UTC

That would be correct; I am indeed using the modesettings driver:

[  2609.157] (==) Matched modesetting as autoconfigured driver 0
[  2609.157] (==) Matched fbdev as autoconfigured driver 1
[  2609.157] (==) Matched vesa as autoconfigured driver 2

Comment 3 Fedora Update System 2019-06-28 17:15:17 UTC

FEDORA-2019-84694484f4 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-84694484f4

Comment 4 Fedora Update System 2019-06-28 18:25:57 UTC

xorg-x11-server-1.20.5-3.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-84694484f4

Comment 5 Fedora Update System 2019-06-30 00:56:47 UTC

xorg-x11-server-1.20.5-3.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.