Bug 92917 - No screen with Radeon Xpress 1200 since Kernel 4.1 / CPU overload with 4.2.6
Summary: No screen with Radeon Xpress 1200 since Kernel 4.1 / CPU overload with 4.2.6
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-11-12 12:49 UTC by psyca
Modified: 2016-03-06 23:20 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
dmesg (59.90 KB, text/plain)
2015-11-12 12:49 UTC, psyca 		no flags Details
xorg.0.log (35.60 KB, text/plain)
2015-11-12 13:20 UTC, psyca 		no flags Details
xorg log with kernel 4.2.6 (35.00 KB, text/plain)
2015-11-12 14:09 UTC, psyca 		no flags Details
dmesg with kernel 4.2.6 (78.77 KB, text/plain)
2015-11-18 19:04 UTC, psyca 		no flags Details
View All

Description psyca 2015-11-12 12:49:19 UTC 
Created attachment 119588 [details]
dmesg

I cant see any screen while booting after the Grub menu - or at last in the desktop.
I tried different Distros like Mageia 5 (where it worked with 3.19.x and doesnt work since Kernel 4.1.x -> 4.1.12 tested and 4.2.5), aswell under Ubuntu 15.10 and OpenSuse 42.1.

dmesg was done with Kernel 3.19.

Sometimes (with Kernel 4.2.15) i see the message if i try to start with the Kernelcommand "nomodset"
drm:radeon_init [radeon]] *ERROR* No UMS Support in radeon module!
than it freezes.
Comment 1 psyca 2015-11-12 13:20:36 UTC 
Created attachment 119589 [details]
xorg.0.log
Comment 2 psyca 2015-11-12 14:08:26 UTC 
The distro i use updated to 4.2.6. Now i see the screen (login screen displayed after i press ESC while booting... if i dont to something it does nothing) but the screen showed corrupt (flickering) -, and i have 100% CPU usage (overload).

The news xorg log is attached.
Comment 3 psyca 2015-11-12 14:09:19 UTC 
Created attachment 119590 [details]
xorg log with kernel 4.2.6
Comment 4 Michel Dänzer 2015-11-18 10:06:23 UTC 
Please attach the dmesg output from kernel 4.2.6.
Comment 5 psyca 2015-11-18 19:04:30 UTC 
Created attachment 119910 [details]
dmesg with kernel 4.2.6

Here it is
Comment 6 psyca 2016-03-06 23:20:42 UTC 
Works now with Kernel 4.4.4. An Patch for 4.4.4 fixed it.

Mark as fixed.

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