$ ls -l /usr/lib/powerpc-linux-gnu/mesa/xeno74 wrote:Please install Mesa 18.2.2 again. After that, please post the output of ls -l /usr/lib/powerpc-linux-gnu/mesa/.
total 3408
-rw-r--r-- 1 root root 32 Apr 14 2016 ld.so.conf
lrwxrwxrwx 1 root root 14 Nov 5 23:04 libGL.so.1 -> libGL.so.1.2.0
-rwxr-xr-x 1 root root 2955664 Nov 5 22:59 libGL.so.1.2.0
-rw-r--r-- 1 root root 527104 Apr 14 2016 libGL.so.1.2.0.back
And Glxinfo gave now this:
$ glxinfo | grep "OpenGL version"
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request: GLXBadContext
Major opcode of failed request: 154 (GLX)
Minor opcode of failed request: 6 (X_GLXIsDirect)
Serial number of failed request: 48
Current serial number in output stream: 47