My apologies. I have fixed the problem. I didn't think anything of libglvnd0-nvidia since it claimed to be vendor neutral. After looking at another system I have I noticed I didn't have that installed. So I swapped these.
The following packages will be REMOVED: libglvnd0-nvidia The following NEW packages will be installed: libglvnd0 And the issue appears to be resolved. root@fusion:/home/matt# ldd -r /usr/lib/x86_64-linux-gnu/libGL.so.1 linux-vdso.so.1 (0x00007ffc74dd4000) libGLX.so.0 => /usr/lib/x86_64-linux-gnu/libGLX.so.0 (0x00007fd9034be000) libGLdispatch.so.0 => /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007fd903208000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd903004000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd902de7000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd902a4a000) libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007fd90270a000) libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007fd9024f8000) /lib64/ld-linux-x86-64.so.2 (0x00007fd90397b000) libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007fd9022d0000) libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007fd9020cc000) libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007fd901ec6000) libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007fd901cb1000) librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fd901aa9000) If you could please resolve and close this ticket. Thanks On Wednesday, September 20, 2017 5:10:20 PM PDT Timo Aaltonen wrote: > On 19.09.2017 22:10, Matt Stamp wrote: > > Package: libglvnd0 > > Version: 0.2.999+git20170802-4 > > Severity: normal > > > > Dear Maintainer, > > > > An upgrade of libgl1:amd64 broken XServer and it cannot start. > > > > [ 32.012] (EE) Failed to load > > /usr/lib/xorg/modules/extensions/libglx.so: / > > usr/lib/x86_64-linux-gnu/libGL.so.1: undefined symbol: _glapi_tls_Current > > [ 32.012] (EE) Failed to load module "glx" (loader failed, 7) > > > > undefined symbol: _glapi_tls_Current > > (/usr/lib/x86_64-linux-gnu/libGL.so.1) > do you have the nvidia driver installed?