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Intel's Core i5 5200U Broadwell Is NOT Running Well On Ubuntu 15.10

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  • Intel's Core i5 5200U Broadwell Is NOT Running Well On Ubuntu 15.10

    I just tried Ubuntu 15.10 final on a laptop with i5 5200U and while it seems to work without apparent errors, the UI responsiveness is extremely slow. Everything animated is choppy and has noticeable lag. That includes moving windows or even just the mouse pointer. I would guess that the system is running on a software renderer, however glxinfo says otherwise.

    ubuntu@ubuntu:~$ glxinfo | grep OpenGL
    OpenGL vendor string: Intel Open Source Technology Center
    OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)
    OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.0.2
    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 11.0.2
    OpenGL shading language version string: 1.30
    OpenGL context flags: (none)
    OpenGL extensions:
    OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.0.2
    OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
    OpenGL ES profile extensions:


    Another interesting find is that while the animation is choppy, mozilla hwaccel is reporting 60+ fps!
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