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[Octave-bug-tracker] [bug #62660] Cannot see a plot on qt graphics on 7.

From: Markus Mützel
Subject: [Octave-bug-tracker] [bug #62660] Cannot see a plot on qt graphics on 7.1.0 windows
Date: Thu, 23 Jun 2022 03:59:33 -0400 (EDT)

Follow-up Comment #10, bug #62660 (project octave):

The main point of bundling mesa3D's llvmpipe with the Windows installer was to
have a software OpenGL renderer that would hopefully work independent of the
used hardware.

Just some points that we might want to check:
Maybe newer versions of llvmpipe use processor instructions that aren't
implemented in your CPU?
Or maybe this is an incompatibility that was already resolved upstream in
newer versions?
IIRC, jwe changed to more modern hardware that he uses to build the Windows
installers around the time that Octave 7 was released. Maybe mesa3D's build
system tests the available instructions on the build system and uses them if
it thinks that they are available?

Did you have a chance to try with the nightly builds from the default branch
of MXE Octave (see comment #7)? Those are built on different hardware, too.


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