Bug 87330 - [ILK bisected] 3.18 black screen after boot
Summary: [ILK bisected] 3.18 black screen after boot
Status: CLOSED DUPLICATE of bug 86679
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium blocker
Assignee: Daniel Vetter
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-12-15 13:50 UTC by Heinz
Modified: 2017-07-24 22:49 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
Dmesg output for kernel 3.17.6 (35.34 KB, application/x-xz)
2014-12-15 13:50 UTC, Heinz 		no flags Details
Dmesg output for kernel 3.18 (until runlevel 3) (19.25 KB, application/x-xz)
2014-12-15 13:51 UTC, Heinz 		no flags Details
View All

Description Heinz 2014-12-15 13:50:37 UTC 
Created attachment 110865 [details]
Dmesg output for kernel 3.17.6

Since kernel 3.18 I'm no longer able to run X on my machine. While
3.17.6 is fine, 3.18 leaves me with a black screen when starting
X. Booting into runlevel 1/3 is fine.

I did a "git bisect", and the offending commit is this one:

[root@kiera linux-git]# git bisect bad
83f45fc360c8e16a330474860ebda872d1384c8c is the first bad commit
commit 83f45fc360c8e16a330474860ebda872d1384c8c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Aug 6 09:10:18 2014 +0200

    drm: Don't grab an fb reference for the idr

[....]

I double-checked, and 3.18 is fine with this commit reverted.
My machine is an Asus U45JC laptop, and the CPU is an Intel i450M
(Ironlake).Please contact me if I can help in any way.
Comment 1 Heinz 2014-12-15 13:51:51 UTC 
Created attachment 110866 [details]
Dmesg output for kernel 3.18 (until runlevel 3)
Comment 2 Jani Nikula 2014-12-17 15:25:01 UTC 

*** This bug has been marked as a duplicate of bug 86679 ***

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