yes you've posted in the right forum.
Could you copy / paste the content of the log file (_geeks3d_gputest_log.txt) here? Maybe we'll see something interesting. The second thing you can do is to test the previous version of GpuTest:http://www.geeks3d.com/20131028/gputest-0-6-0-opengl-benchmark-for-windows-mac-os-x-and-linux-downloads/
because I feel a possible bug with the new GPU monitoring plugin I added in GpuTest 0.7.0. By the way, can you delete plugin_gxl3d_gpu_monitor_gml_x64.so and plugin_gxl3d_opencl_x64.so and test GpuTest 0.7.0 again?
If I check ''Submit score to GPU database'', a webpage loads and I can read this in red : INVALID validation ID
Also, when I check this box, and only when I do, I get this message in the console:
(process:26770): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
The GLib-CRITICAL message comes from firefox. Try the following command in a terminal:
$ firefox -v
and I'm sure you will have the same message.
I spent way too much time trying to install the latest NVIDIA drivers (I'm starting to miss Windows...) and I thought I had succeeded... maybe it didn't work, maybe that's why the test fails?
Totally agree with you. The installation of NVIDIA driver is easy and works fine in LM13 but is real pain in LM16. Try to use the Driver Manager to change / update the graphics driver. Most of GpuTest demos work fine with the Nouveau driver.