Bug 593225 - radeon.dynpm disables KMS
radeon.dynpm disables KMS
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati (Show other bugs)
13
All Linux
low Severity medium
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Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
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Reported: 2010-05-18 04:59 EDT by Didier G
Modified: 2010-05-18 15:19 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2010-05-18 15:19:38 EDT
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Attachments (Terms of Use)
Xorg.0.log with radeon.dynpm=1 (198.08 KB, application/octet-stream)
2010-05-18 05:07 EDT, Didier G
no flags Details
/var/log/messages (76.48 KB, application/octet-stream)
2010-05-18 14:24 EDT, Didier G
no flags Details

  None (edit)
Description Didier G 2010-05-18 04:59:27 EDT
Description of problem:

radeon.dynpm parameter in kernel command line causes disable of KMS regardless value passed


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

kernel-2.6.33.4-96.fc13.x86_64
xorg-x11-drv-ati-6.13.0-1.fc13.x86_64

01:00.0 VGA compatible controller: ATI Technologies Inc Juniper [Radeon HD 5700 Series]


Steps to Reproduce:
1. Just specify radeon.dynpm=0 or radeon.dynpm=1 in kernel command line
  
Actual results:

In /var/log/Xorg.0.Log and regardless value passed :

[     9.527] (II) [KMS] drm report modesetting isn't supported.
[     9.806] (II) RADEON(0): Dynamic Power Management Disabled


With *** NO *** radeon.dynpm in kernel command line :

[     9.835] (II) [KMS] Kernel modesetting enabled.



Expected results:

Dynamic Power Management if supported by hardware or warning message if not supported but KMS should stay enabled.
Comment 1 Didier G 2010-05-18 05:07:52 EDT
Created attachment 414779 [details]
Xorg.0.log with radeon.dynpm=1
Comment 2 Jérôme Glisse 2010-05-18 11:24:53 EDT
My guess is that dynpm is unknown parameter and thus kernel refuse to load module (please provide dmesg with the parameter to verify this supposition). If that the case than there is nothing we can do, don't use this parameter.
Comment 3 Didier G 2010-05-18 14:22:45 EDT
In my configuration, according messages log :

May 18 11:00:43 lx-xxxxx kernel: radeon: Unknown parameter `dynpm' 

but according my understanding this option should enable power management (just google radeon.dynpm).
Comment 4 Didier G 2010-05-18 14:24:01 EDT
Created attachment 414933 [details]
/var/log/messages
Comment 5 Jérôme Glisse 2010-05-18 15:19:38 EDT
This option doesn't apply to 2.6.33 (it might to 2.6.34) I am closing this as this isn't a bug. Just don't use parameter that are not valid.

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