Bug 809859

Summary: Black screen on boot on HP Folio 13 laptop
Product: Red Hat Enterprise Linux 6 Reporter: Alexander Lindqvist <alexander>
Component: kernelAssignee: Adam Jackson <ajax>
Status: CLOSED WONTFIX QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: high Docs Contact:
Priority: unspecified    
Version: 6.2CC: jfeeney, lyude
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2015-12-10 19:52:31 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
dmesg with drm.debug=4 enabled none

Description Alexander Lindqvist 2012-04-04 14:16:21 UTC 
Description of problem:
Screen becomes black after choosing kernel for boot. (grub works)

Version-Release number of selected component (if applicable):
2.6.32-220.7.1

How reproducible:


Steps to Reproduce:
1.
2.
3.
  
Actual results:
Black screen on boot

Expected results:
should show boot progress

Additional info:

Works with kernel parameters i915.modeset=1 acpi_backlight=vendor
Fedora 17 alpha works out of the box.
Comment 2 RHEL Program Management 2012-05-03 05:43:14 UTC 
Since RHEL 6.3 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.
Comment 3 Alexander Lindqvist 2012-05-21 06:38:28 UTC 
Created attachment 585742 [details]
dmesg with drm.debug=4 enabled

kernel booted with drm.debug=4
Comment 4 Adam Jackson 2013-01-04 18:07:40 UTC 
Are you still seeing this in 6.3 (or a 6.4 snapshot)?  The sandybridge drm support has seen significant changes since 6.2.
Comment 5 Alexander Lindqvist 2013-01-09 09:59:43 UTC 
The HP Folio 13 was replaced with a HP Elitebook (Sandy bridge based on EL6.3) so I can't test this now.

This bug can be closed