Bug 1404430

Summary: drm initialisation fails with radeon Mobility
Product: [Fedora] Fedora Reporter: Didier Lecardez <d.lecardez>
Component: xorg-x11-drv-atiAssignee: X/OpenGL Maintenance List <xgl-maint>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 25CC: cz172638, gansalmon, ichavero, itamar, jonathan, j, kernel-maint, labbott, madhu.chinakonda, mchehab, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2017-12-12 10:40:33 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
full dmesg trace for 4.8.13-300.fc25.x86_64
none
dmesg.3.9.5-301.fc19.full trace
none
dmesg.3.9.5-301.fc19.full drm traces only none

Description Didier Lecardez 2016-12-13 20:26:51 UTC
Created attachment 1231326 [details]
full dmesg trace for 4.8.13-300.fc25.x86_64

Description of problem:

Booting with modeset enabled fails at the drm initialization and hangs forever.
My system has an  ATI Mobility Radeon HD 5000 Series

Version-Release number of selected component (if applicable):
4.8.13-300.fc25.x86_64 

How reproducible:
boot with modeset enabled


Expected results:
Have my sytem boot with modeset enabled.

Additional info:
In order to narrow the problem, I made the following test:

-boot with modeset disabled.
-log in
-issue command:  modprobe radeon modeset=1 this results in a hung system.
-reboot with modeset disabled  to get the dmesg traces (See file dmesg.4.8.13-300.fc25.x86_64.fail)
   Fetch pattern '============' in this file to see what happens immediately after issuing the modprobe radeon modeset=1 command


Now I made the same test on the SAME system running 3.9.5-301.fc19
- See dmesg.3.9.5-301.fc19.full (full dmesg)
- See dmesg.3.9.5-301.fc19 (dmesg containing drm traces  only)

Comment 1 Didier Lecardez 2016-12-13 20:28:08 UTC
Created attachment 1231327 [details]
dmesg.3.9.5-301.fc19.full trace

Comment 2 Didier Lecardez 2016-12-13 20:28:54 UTC
Created attachment 1231328 [details]
dmesg.3.9.5-301.fc19.full drm traces only

Comment 3 Didier Lecardez 2016-12-13 20:33:25 UTC
All kernel versions after 3.9.5-301 have the same problem

Comment 5 Didier Lecardez 2016-12-14 07:20:05 UTC
*** Bug 1404423 has been marked as a duplicate of this bug. ***

Comment 6 Fedora End Of Life 2017-11-16 19:42:35 UTC
This message is a reminder that Fedora 25 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 7 Fedora End Of Life 2017-12-12 10:40:33 UTC
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 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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