Bug 1309370 - Optimus laptop external monitor stop working with kernel 4.5
Summary: Optimus laptop external monitor stop working with kernel 4.5
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-02-17 16:01 UTC by Carlos Soriano
Modified: 2018-04-06 18:03 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-06 18:03:22 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

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.


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