Bug 63732 - [KDE] - display switching problem with kwin_gles and radeon driver.
Summary: [KDE] - display switching problem with kwin_gles and radeon driver.
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/r300 (show other bugs)
Version: 9.1
Hardware: Other Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-04-19 15:52 UTC by Honza Tvrznik
Modified: 2013-05-06 14:01 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
Dualdisplay bug. (1.30 MB, image/png)
2013-04-19 15:52 UTC, Honza Tvrznik 		Details
xorg log (47.11 KB, text/plain)
2013-04-19 16:43 UTC, Honza Tvrznik 		Details
dmesg part (65.51 KB, text/plain)
2013-04-19 16:43 UTC, Honza Tvrznik 		Details
View All

Description Honza Tvrznik 2013-04-19 15:52:42 UTC 
Created attachment 78244 [details]
Dualdisplay bug.

Hello,

with radeon driver and mesa in version 9.1.1 I have problem with switching display between notebook and external display in KDE 4.10.2 with kwin_gles compositor in compositing type OpenGL.

Setting dual display (left/right/above) or switching between displays, causes broken screen. Please, check attached screenshot.

Downgrading to mesa version 9.0.2 solve this problem. 

With intel GPU/Driver is everything OK.

KDE version 4.10.2
GPU: ATI x1400, driver - radeon
Kernel: 3.8.7
mesa version: 9.1.1
ati-dri version: 9.1.1
Comment 1 Alex Deucher 2013-04-19 16:16:20 UTC 
Please attach your xorg log and dmesg output.  I suspect this may be related to bug 61182.
Comment 2 Honza Tvrznik 2013-04-19 16:42:45 UTC 
I must say that I don't have any problem with kwin (but kwin is too slow for me). This bug is present only when I'am using kwin_gles.

Maybe this bug: https://bugs.freedesktop.org/show_bug.cgi?id=61600 is like this one, but, for intel driver.

Parts of dmesg and full Xorg.0.log attached.
Comment 3 Honza Tvrznik 2013-04-19 16:43:27 UTC 
Created attachment 78247 [details]
xorg log
Comment 4 Honza Tvrznik 2013-04-19 16:43:53 UTC 
Created attachment 78248 [details]
dmesg part
Comment 5 Michel Dänzer 2013-04-23 10:50:46 UTC 
(In reply to comment #2)
> I must say that I don't have any problem with kwin (but kwin is too slow for
> me).

FWIW, there is no inherent reason why kwin using full OpenGL should be slower than kwin_gles, but there is a kwin bug where it uses MSAA when it shouldn't. Supposedly that's fixed in current current kwin snapshots.
Comment 6 Honza Tvrznik 2013-05-06 06:17:32 UTC 
Hello,

upgrade mesa library/ati-dri to version 9.1.2 solve this problem. Request can be closed. Thanks!

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