Bug 1119000 - radeon.dpm=1 prevents 3d acceleration
Summary: radeon.dpm=1 prevents 3d acceleration
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 20
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2014-07-13 01:21 UTC by Renich Bon Ciric
Modified: 2015-06-29 21:34 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-06-29 21:34:26 UTC
Type: Bug

Attachments (Terms of Use)
lspci (15.17 KB, text/plain)
2014-07-13 01:21 UTC, Renich Bon Ciric
no flags Details
lsmod (4.50 KB, text/plain)
2014-07-13 01:22 UTC, Renich Bon Ciric
no flags Details
Xorg.0.log (58.87 KB, text/x-log)
2014-07-13 01:22 UTC, Renich Bon Ciric
no flags Details

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bug reports from releases that are no longer maintained.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'.

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able to fix it before Fedora 20 is end of life. If you would still like 
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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.

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