Looking at people with similar gsettings 'memory' backend warning, it would seem to indicate you may have libraries on your system with incompatible versions. This could happen if you installed software from outside the official repositories. See this post:
https://askubuntu.com/a/558462
Suggest you check that. Run this command and compare the output or share it here:
ldd /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
Expected output:
linux-vdso.so.1 => (0x00007ffc7a9aa000)
libgio-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007f3085308000)
libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f30850b5000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f3084da4000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3084b86000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f30847bc000)
libgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007f30845b8000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f308439d000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f308417b000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f3083f60000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f3083d57000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f3083ae7000)
/lib64/ld-linux-x86-64.so.2 (0x000056155e073000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f30838e3000)
Check the locations of the libraries it uses. If there's any it uses starting with /local or /usr/local we've found the culprit.
Also check with
locate libdconfsettings.so
that you have only one such file on your system. It should be in:
/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
And check which gsettings command you run with
which gsettings
. It should be:
/usr/bin/gsettings
For completeness sake also the libraries used by gsettings, should all the above look to be in order there may be another library that gsettings uses that is the problem.
ldd /usr/bin/gsettings
Code: Select all
linux-vdso.so.1 => (0x00007ffc6b1fc000)
libgio-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007f2d66b13000)
libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f2d668c0000)
libgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007f2d666bc000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f2d663aa000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2d65fe0000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f2d65dc6000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f2d65ba3000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f2d65988000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f2d65780000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f2d6557b000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f2d6530b000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f2d650ee000)
/lib64/ld-linux-x86-64.so.2 (0x000055d3d57aa000)