Hello,
the problem comes from the transition of mesa to glvnd.
A workaround is to link the missing libs from
/usr/lib/x86_64-linux-gnu/libGL.so.1 to
/usr/lib/x86_64-linux-gnu/nvidia/libGL.so.1
and
/usr/lib/i386-linux-gnu/libGL.so.1 to
/usr/lib/i386-linux-gnu/nvidia/libGL.so.1
That will result in primusrun starting again but most likely resulting
in a black window for the application which is started.
To get primusrun to work properly you have to start it with
__GLVND_DISALLOW_PATCHING=1
example:
__GLVND_DISALLOW_PATCHING=1 primusrun glxgears
Best regards
