Bug 1332615

Summary:	System crashes/freezes on intel braswell systems
Product:	[Fedora] Fedora	Reporter:	dkrall <krall.dennis>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	24	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, ogassner
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-07-21 11:57:40 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 dkrall 2016-05-03 14:55:06 UTC

Description of problem:
System is crashing immediately on boot on intel braswell systems (N3050 in this specific case). After grub, the screen will go blank right before the entire system freezes.

Version-Release number of selected component (if applicable):
Fedora 23, 24 alpha/beta, kernel version =>4.2 won't boot on braswell systems.

How reproducible:
Boot fedora 23 (kernel version must be >4.2) or fedora 24 alpha/beta.

Steps to Reproduce:
1. Boot system
2. System will crash on boot

Actual results:
Crashed system, no interaction possible, blank screen.

Expected results:
Normal boot of system.

Additional info:
Disabling C-States can "help" sometimes.

Comment 1 dkrall 2016-05-03 15:04:36 UTC

Booting with "nomodeset i915.modeset=0" actually works, but only with a resolution of 800x600.