I'm running Debian sid with Xorg version 1.12.1.
The 173.14.34 driver installs okay with Xorg 1.12.1, but the glx module fails to load when X is starting up.
In /var/log/Xorg.0.log there's this error:
[ 1422.844] (II) LoadModule: "glx"
[ 1422.845] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 1422.882] (EE) Failed to load /usr/lib/xorg/modules/extensions/libglx.so: /usr/lib/xorg/modules/extensions/libglx.so: undefined symbol: LookupIDByClass
[ 1422.882] (II) UnloadModule: "glx"
[ 1422.882] (II) Unloading glx
[ 1422.882] (EE) Failed to load module "glx" (loader failed, 7)
I downgraded Xorg to verson 1.11.4 which was the version in Wheezy a month or so ago. I had the same results as I had with Xorg 1.12.1. Then downgraded Xorg back to 1.10.4, glx does work with it.
I'm attaching a bug report (nvidia-bug-report.log.gz) for when I tried using the 173.14.34 driver with Xorg 1.12.1, where glx fails to load.
I'm also attaching the bug report (nvidia-bug-report.log.old.gz) when I used the 173.14.34 driver with Xorg 1.10.4, where glx works.
I don't have a bug report for when I tried with Xorg 1.11.4, but I can downgrade Xorg back to it if you want a bug report for that Xorg version.