Bug 40029

Summary: [regression IronLake] blank screen while kms boots up
Product: DRI Reporter: bo.b.wang
Component: DRM/IntelAssignee: Chris Wilson <chris>
Status: CLOSED FIXED QA Contact:
Severity: critical    
Priority: high CC: ben, chris, jbarnes, przanoni, yi.sun
Version: unspecified   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
/var/log/message
none
boot information
none
dmesg info none

Description bo.b.wang 2011-08-11 22:28:17 UTC 
Created attachment 50148 [details]
/var/log/message

System Environment:
-------------------
Platform: IronLake 
Port: eDP

Kernel: (drm-intel-fixes)d7d39e20cc5e44f915d6c5687f65839632c44381
Some additional commit info:
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Wed Aug 3 12:59:21 2011 -0700

    drm/i915: enable/disable spread spectrum as needed on mode set




Bug Description:
---------------------
while kms boots up, the screen is blank, no any display.But it can be logined by ssh. Attachment is the boot log, and dmesg info. BTW, this is a regression \
Comment 1 bo.b.wang 2011-08-11 22:29:34 UTC 
Created attachment 50149 [details]
boot information
Comment 2 bo.b.wang 2011-08-11 22:30:33 UTC 
Created attachment 50150 [details]
dmesg info
Comment 3 Gordon Jin 2011-08-11 23:02:27 UTC 
Can you also give the good commit?
Comment 4 bo.b.wang 2011-08-11 23:09:59 UTC 
Hello 
A good commit is :
Kernel: (drm-intel-fixes)4e6343898fe7eed6b3c0c3c809347bc88d5b4a1e
Some additional commit info:
Author: Keith Packard <keithp@keithp.com>
Date:   Sat Aug 6 10:39:45 2011 -0700

    drm/i915: Remove unused 'reg' argument to dp_pipe_enabled
Comment 5 Gordon Jin 2011-09-19 20:15:02 UTC 
(I'd activate this critical bug)

Chris, any idea?

Yi, can you try reproducing this with latest -rc?
Comment 6 Paulo Zanoni 2011-11-01 09:42:01 UTC 
I don't see the patch mentioned here (Jesse's Patch) in drm-intel-fixes, drm-intel-next or Linus' 3.2 tree. It seems this patch was reverted a long time ago.

Close bug?
Comment 7 bo.b.wang 2011-11-08 21:27:28 UTC 
(In reply to comment #6)
> I don't see the patch mentioned here (Jesse's Patch) in drm-intel-fixes,
> drm-intel-next or Linus' 3.2 tree. It seems this patch was reverted a long time
> ago.
> 
> Close bug?

I have tried the newest stable and unstable kernel, and they work well.

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