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Bug 1355739 - External screen flickers with kernel 4.6.3
Summary: External screen flickers with kernel 4.6.3
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-intel
Version: 24
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Adam Jackson
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2016-07-12 12:02 UTC by romu
Modified: 2017-08-08 15:32 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2017-08-08 15:32:30 UTC

Attachments (Terms of Use)

Description romu 2016-07-12 12:02:32 UTC
Description of problem:
Here is my setup:
- Dell XPS15 2015 with Intel Skylake processor
- Dell USB-C to HDMI adapter
- Dell external screen Ultrasharp U2515H (2560*1440).

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

How reproducible:

Steps to Reproduce:
1. Boot on 4.6.3 kernel and use F24

Actual results:
After a while, the external screen starts to flickers. The screen seems to be cut in 2 parts, top 80% and bottom 20%. 

Expected results:
No flicker, as with the 4.5.7 kernel.

Additional info:

Comment 1 romu 2016-07-12 12:21:36 UTC
Forgot to mention the flickering affects only the external screen, never the laptop one.

Comment 2 romu 2016-08-22 09:23:05 UTC
I've the feeling things get worse in this area with new kernel updates. Can anyone advice me how I can downgrade to the kernel 4.5.7 and prevent it to be erased by further updates ?

Because, I can't work the whole day on a flickering screen.

Comment 3 romu 2016-09-27 08:25:47 UTC
New information about the problem.

I installed the Intel driver from the website and this fixes the issue, great! But this doesn't work with hibernation. After hibernation, the problems remains.

Workaround: don't hibernate, always shutdown the PC for good.

Comment 4 Fedora End Of Life 2017-07-25 21:45:22 UTC
This message is a reminder that Fedora 24 is nearing its end of life.
Approximately 2 (two) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 24. 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bug reports from releases that are no longer maintained.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 '24'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not
able to fix it before Fedora 24 is end of life. If you would still like
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of Fedora, you are encouraged  change the 'version' to a later Fedora
version prior this bug is closed as described in the policy above.

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Comment 5 Fedora End Of Life 2017-08-08 15:32:30 UTC
Fedora 24 changed to end-of-life (EOL) status on 2017-08-08. Fedora 24 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.

If you can reproduce this bug against a currently maintained version of
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