Bug 38583

Summary: Radeon HD 6850 locks computer when kernel module is loaded with KMS
Product: xorg Reporter: Matt Novenstern <fisxoj>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: critical    
Priority: medium CC: perry3d
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description Matt Novenstern 2011-06-22 18:47:13 UTC 
I just got a new HD 6850 card.  When I boot with it inserted, I get through bios and grub, and then have a few seconds of blinking cursor before the screen goes off and I can't get the machine to respond to anything.

With the nomodeset option, I can boot to runlevel 3.  Because everything freezes when the module is loaded with modesetting (and since the xorg driver seems to require it) that's as far as I can get.

I'm running 64bit fedora 15 that is up-to-date as of today.
Comment 1 Dave Airlie 2011-06-22 20:14:22 UTC 
I''m building a test kernel for F15 with the voltage fixes from Alex in it

http://koji.fedoraproject.org/koji/taskinfo?taskID=3154129

it will end up at 

http://kojipkgs.fedoraproject.org/scratch/airlied/task_3154129/

when it finishes building.
Comment 2 Matt Novenstern 2011-06-23 17:31:14 UTC 
The voltage fixes make the card boot normally!

Problem resolved.
Comment 4 Alex Deucher 2011-07-11 06:40:07 UTC 
*** Bug 38754 has been marked as a duplicate of this bug. ***

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