[Bug 91741] Opengl Version Downgrades to 2.1 from 3.3 in Ubuntu 15.04

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=91741

            Bug ID: 91741
           Summary: Opengl Version Downgrades to 2.1 from 3.3 in Ubuntu
                    15.04
           Product: Mesa
           Version: 10.5
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jesnake@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 117888
  --> https://bugs.freedesktop.org/attachment.cgi?id=117888&action=edit
Complete xorg.log

OpenGL Version is Downgrading from Opengl 2.1 to 3.3 in Ubuntu 15.04 When
trying to Build  Mesa from source code (Xserver version 1.17)
The same behaviour is Observed with Ubuntu 14.04 and 12.04 (Xserver version
1.15)
I am trying to Built Mesa from SOurce code (Mesa version is 10.5.2)

Followed the Instructions from this link :
http://www.x.org/wiki/radeonBuildHowTo/ 

Manually copied the dri from the Built Directory to /usr/lib/x86_64-linux-gnu
Also Set the environmental variable 
But Still could observe that OpenGL Version is changing from 3.3 to 2.1 

Please find the Opengl Version Before and After Building/Installing the Mesa
from Source code :

desktop:~$ glxinfo | grep -i opengl 
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD MULLINS
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.5.2
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.5.2
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.5.2
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

:~$ glxinfo | grep -i opengl 
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD MULLINS
OpenGL version string: 2.1 Mesa 10.5.2
OpenGL shading language version string: 1.30
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 10.5.2
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16
OpenGL ES profile extensions:

sudo ldconfig -p | grep libGL.so
    libGL.so.1 (libc6,x86-64) => /opt/xorg/lib/libGL.so.1
    libGL.so (libc6,x86-64) => /opt/xorg/lib/libGL.so


Also attaching the Xorg.log 

Please help to understand whta is going wrong in this Setup 

Thanks,

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