Bug 1119000

Summary: radeon.dpm=1 prevents 3d acceleration
Product: [Fedora] Fedora Reporter: Renich Bon Ciric <renich>
Component: xorg-x11-drv-atiAssignee: X/OpenGL Maintenance List <xgl-maint>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
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Version: 20CC: xgl-maint
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2015-06-29 21:34:26 UTC Type: Bug
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Description Flags
Xorg.0.log none

Description Renich Bon Ciric 2014-07-13 01:21:39 UTC
Created attachment 917584 [details]

Description of problem:
If I append radeon.dpm=1 to the kernel at boot time, 3d acceleration is affected.

It prevents GDM, KDM or XDM to work. The only one that seems unnaffected is LightDM since it doesn't use it.

It makes it impossible to use Gnome, KDE or any 3d accelerated desktop.

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

How reproducible:
Use radeon and enable dpm. Reboot a few times. Most of the time, gdm will not work at all (it works sometimes).

Remove it and it will work.

Additional info:
This problem happens begining kernel 3.14.x until today; 3.15.3 at the moment.

If I don't use dpm, my video card starts overheating. I can't even get passed installation if it is not enabled.

The only fix I have left is the following, but it makes my graphics clumsy:

echo profile >  /sys/class/drm/card0/device/power_method
echo low >  /sys/class/drm/card0/device/power_profile

Comment 1 Renich Bon Ciric 2014-07-13 01:22:13 UTC
Created attachment 917585 [details]

Comment 2 Renich Bon Ciric 2014-07-13 01:22:44 UTC
Created attachment 917586 [details]

Comment 3 Fedora End Of Life 2015-05-29 12:21:31 UTC
This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 20. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '20'.

Package Maintainer: If you wish for this bug to remain open because you
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Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 20 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

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Comment 4 Fedora End Of Life 2015-06-29 21:34:26 UTC
Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
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current release. If you experience problems, please add a comment to this

Thank you for reporting this bug and we are sorry it could not be fixed.