Bug 1628880

Summary: Colored flicker/snow on shutdown with laptop screen
Product: [Fedora] Fedora Reporter: Alexander Lindqvist <alexander>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 28CC: airlied, bskeggs, ewk, hdegoede, ichavero, itamar, jarodwilson, jforbes, jglisse, john.j5live, jonathan, josef, kernel-maint, linville, mchehab, mjg59, steved
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-01-29 19:30:38 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:
Attachments:
Description Flags
laptop display during shutdown none

Description Alexander Lindqvist 2018-09-14 08:50:14 UTC 
Created attachment 1483250 [details]
laptop display during shutdown

Description of problem:
Colored flicker/snow during shutdown/reboot for about 3 seconds before turning off. Sometimes it freezes with flicker/snow and you cant do anything.

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


How reproducible:
Shutdown laptop when using the internal screen.

Steps to Reproduce:
1. Boot computer
2. Shutdown or restart after logging in
3. Clored flicker/snow for about 3 seconds before turning off or it freezes with continued flicker/snow forever

Actual results:
Flicker/snow on internal laptop screen

Expected results:
No flicker/snow on shutdown when using external screen

Additional info:
HP Elitebook 745 G5 Raven Ridge 2700u
Laptop screen 120hz
Comment 1 Alexander Lindqvist 2018-09-14 08:59:07 UTC 
Tested kernels:

kernel-4.16.3-301.fc28.x86_64
kernel-4.17.19-200.fc28.x86_64
kernel-4.18.5-200.fc28.x86_64
Comment 2 Justin M. Forbes 2019-01-29 16:24:23 UTC 
*********** MASS BUG UPDATE **************

We apologize for the inconvenience.  There are a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 28 kernel bugs.

Fedora 28 has now been rebased to 4.20.5-100.fc28.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.

If you have moved on to Fedora 29, and are still experiencing this issue, please change the version to Fedora 29.

If you experience different issues, please open a new bug report for those.
Comment 3 Alexander Lindqvist 2019-01-29 17:48:57 UTC 
This issue was fixed in one of the 4.19 kernels.
Comment 4 Justin M. Forbes 2019-01-29 19:30:38 UTC 
Thanks for letting us know.