Bug 27608

Summary: Dualhead in conbination with Xrender in KDE4 doesn't work
Product: xorg Reporter: Michal <michalodstrcil>
Component: Driver/intelAssignee: Carl Worth <cworth>
Status: RESOLVED DUPLICATE QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium    
Version: git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Photo with XRender in KDE4 none

Description Michal 2010-04-12 14:31:42 UTC
Created attachment 34932 [details]
Photo with XRender in KDE4

I use Intel 945GM with xf86-video-intel 2.11.0 drivers and other packages from Intel 2010Q1 graphics package. 
When I expand screen on 2 monitors (only when resolution > 2040^2) display on the monitor broke down. How the problem looks is in attachment. Sorry for the photo but snapshot wasn't able to take correct picture of the screen.  

With drivers 2.10.0 it worked but it was really slow. There are no errors in Xorg.0.log.

Steps to reproduce with 945GM:
1) use KDE4
2) connect second monitor
3) expand screen  xrandr --output VGA1 --verbose --right-of LVDS1 --auto
4) enable XRender in KDE systemsettings
Comment 1 Gordon Jin 2010-04-12 20:07:41 UTC
This looks like bug#27449 or bug#27408
Comment 2 Chris Wilson 2010-05-11 09:28:04 UTC
This one is the broken fence issue, so indeed a dup of 27449.

*** This bug has been marked as a duplicate of bug 27449 ***

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