I too got this issue again late last week when updates forced libglvnd0
to be re-installed:
$ glxinfo|grep OpenGL
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 5.0, 256 bits)
Removing libglvnd0 fixed the issue for me.
Strangely, apt-cache rdepends said that libgl1, libegl1, libopengl0,
libglx0, and libgles2 all depend on libglvnd0, but they don't seem to. I
used synaptic to remove libglvnd0, and although it said it would also
remove libegl1 and mesa-utils, after it completed all the libraries
listed by apt-cache rdepends are are still installed:
$ dpkg -l|egrep 'libgl1|libegl1|libopengl0|libglx0|libgles2|mesa-utils'
ii libegl1-mesa:amd64 17.3.3-0ubuntu1
amd64 free implementation of the EGL API -- runtime
ii libegl1-mesa-dev:amd64 17.3.3-0ubuntu1
amd64 free implementation of the EGL API -- development
files
ii libgl1-mesa-dev:amd64 17.3.3-0ubuntu1
amd64 free implementation of the OpenGL API -- GLX
development files
ii libgl1-mesa-dri:amd64 17.3.3-0ubuntu1
amd64 free implementation of the OpenGL API -- DRI
modules
ii libgl1-mesa-dri:i386 17.3.3-0ubuntu1
i386 free implementation of the OpenGL API -- DRI
modules
ii libgl1-mesa-glx:amd64 17.3.3-0ubuntu1
amd64 free implementation of the OpenGL API -- GLX
runtime
ii libgl1-mesa-glx:i386 17.3.3-0ubuntu1
i386 free implementation of the OpenGL API -- GLX
runtime
ii libgles2-mesa:amd64 17.3.3-0ubuntu1
amd64 free implementation of the OpenGL|ES 2.x API --
runtime
ii mesa-utils 8.4.0-1
amd64 Miscellaneous Mesa GL utilities
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https://bugs.launchpad.net/bugs/1733136
Title:
libglvnd0/libegl installed in Ubuntu 18.04 breaks graphics drivers and
forces LLVMpipe driver on i915 systems
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