Bug 1309370

Summary:	Optimus laptop external monitor stop working with kernel 4.5
Product:	[Fedora] Fedora	Reporter:	Carlos Soriano <csoriano>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	gansalmon, itamar, james.hogarth, jforbes, jonathan, kernel-maint, labbott, madhu.chinakonda, mchehab
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-04-06 18:03:22 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 Carlos Soriano 2016-02-17 16:01:14 UTC

Description of problem:

An external monitor was working fine using rawhide with kernel 4.3 on a optimus laptop with the external monitor output connected only to the nvidia card.

However with the kernel 4.5 in latest rawhide that stopped working.
xrandr doesn't detect the external monitor and it says that the HDMI is disconnected.
DRI_PRIME=1 glxgears works as expected.


Additional info:

The card is: GeForce GT 520M
OpenGL ES 3.0 Mesa 11.2.0-devel
Gallium 0.4 on NVD9

Comment 1 Justin M. Forbes 2016-02-17 16:36:48 UTC

Can you please attach dmesg output from both the working and non working kernels?

Comment 2 Laura Abbott 2018-04-06 18:03:22 UTC

Doing some pruning, this bug looks to be years old. Please test on a newer kernel and reopen if the problem still exists.