Bug 1201553 - Complete system freeze when connecting an external monitor
Summary: Complete system freeze when connecting an external monitor
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-intel
Version: 21
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Adam Jackson
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2015-03-12 22:57 UTC by Jonathan Briggs
Modified: 2015-12-02 17:39 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-12-02 10:02:35 UTC
Type: Bug

Attachments (Terms of Use)

Description Jonathan Briggs 2015-03-12 22:57:41 UTC
Description of problem:
I have a new Dell Precision m3800. It has Intel video which is connected to all the display outputs and an Nvidia Quadro.

The DisplayPort is also Thunderbolt.

When I plug in an external Dell 4K monitor the system freezes completely. Caps lock does not switch states. I have no log output from the freeze after rebooting.

HOWEVER, a test with a Ubuntu 14.04 live CD WORKS. So, there is some difference between the Ubuntu versions and the Fedora versions which cause this crash.

ALSO, if I boot into text mode and plug in the monitor nothing bad happens. As soon as I start X it freezes.

Version-Release number of selected component (if applicable):

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)

02:00.0 3D controller: NVIDIA Corporation GK107GLM [Quadro K1100M]

How reproducible:
Every time that I plug it in.

Steps to Reproduce:
1. Boot Fedora 21 to GUI.
2. Plug in external monitor

Actual results:

Expected results:
Should be able to use the monitor.

Additional info:

Comment 1 Jonathan Briggs 2015-03-25 22:05:07 UTC
Also fails on Fedora 22.

Also fails when connecting same Dell external 4K monitor via HDMI.

An external 1080p projector via HDMI did work. For about an hour in both X and Wayland. Then it also froze. No way to tell if it froze for the same reason however.

Comment 2 Jeremy Fitzhardinge 2015-05-15 18:55:29 UTC
I'm seeing the same thing with a Thinkpad T440s; when I attach a Dell 4k monitor via Displayport, the Thinkpad often (but not always) completely hangs.

The Thinkpad is just using Intel graphics; there's no Nvidia component to complicate things.


Comment 3 Jonathan Briggs 2015-10-16 22:07:07 UTC
The latest 4.2 kernels seem to have fixed this problem.

Comment 4 Fedora End Of Life 2015-11-04 10:07:15 UTC
This message is a reminder that Fedora 21 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 21. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '21'.

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Comment 5 Fedora End Of Life 2015-12-02 10:02:39 UTC
Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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