[Bug 96671] Latest INTEL LINUX Mesa driver installer (1.4.0) causes MATLAB graphics operations to either hang or produce a java exception on Fedora 23

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96671

Rick <rick.irons at mathworks.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
             Status|RESOLVED                    |REOPENED

--- Comment #13 from Rick <rick.irons at mathworks.com> ---
I tested the latest Intel LINUX driver and unfortunately the MATLAB hang issue
does not appear to be resolved.

I tested using a Fedora 25 installation.  I was assuming that this version of
Fedora would be using the latest Intel Mesa driver since it was just recently
released.  This version of Fedora is indeed using a Mesa 12 based Intel driver,
but unfortunately MATLAB still hangs when performing any type of graphics
operation.  The following are the details of the renderer…

Version: '3.0 Mesa 12.0.3'
Vendor: 'Intel Open Source Technology Center’
Renderer: 'Mesa DRI Intel(R) Sandybridge Mobile '

All of my testing has been done on a Lenovo T520 ThinkPad. 

Fortunately, the workaround of setting the environment variable
LIBGL_DRI3_DISABLE to 1 still works.

Could someone take another look into this issue?

Could someone also explain why using the LIBGL_DRI3_DISABLE environment
variable avoids the issue?

Thanks.

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