*** This bug is a duplicate of bug 1768610 ***
https://bugs.launchpad.net/bugs/1768610
Thank you @xjbhenry (xjbhenry)!
His fix
[21](https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1752938/comments/21),
helped me for my NVIDIA card.
Instead of "llvmpipe (LLVM 6.0, 256 bits)" the active OpenGL renderer is
now:
$ glxgears -info
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
GL_RENDERER = GeForce 940M/PCIe/SSE2
GL_VERSION = 4.6.0 NVIDIA 396.37
GL_VENDOR = NVIDIA Corporation
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https://bugs.launchpad.net/bugs/1752938
Title:
Upgrading Ubuntu 18.04 disables GPU hardware acceleration
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