For me, "apt-get remove libnvidia-gl-390" solved it. No idea how it came
to be installed, but for some reason the active EGL driver was nvidia,
and that interfered with the X start sequence.
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Same problem here. After upgrading my laptop from Lubuntu 16.04 to
Lubuntu 18.04, there is no hardware acceleration anymore. AMD STONEY was
perfectly capable of this on the older release.
glxinfo shows:
OpenGL renderer string: llvmpipe (LLVM 6.0, 128 bits)
/var/log/Xorg.0.log shows:
[
Public bug reported:
Trying to run a basic OpenCL demo on a AMD Tonga series card on Ubuntu
16.04 gives:
$ ./hello
Error: Failed to build program executable!
fatal error: cannot open file '/usr/lib/clc/tonga-amdgcn--.bc': No such file or
directory
I have installed the appropriate icd packages
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