NOTE: This was last tested with n Vidia 343.13 drivers...

despite these drivers adding support for the GTX Titan Z, a Multi-GPU videocard it still does not support SLI...

ubuntu updating drivers-2

Using a laptop with a Ge Force Go card, or connecting the sole display via DVI on a dual-head system sometimes results in the screen not receiving a picture.

This is caused by the driver outputting video to the VGA port on the graphics card, instead of DVI. mplayer, gxine, or mythtv frontend with a legacy card, it may be due to too high a color depth (e.g.

For example: With a Ge Force 7600, after installation of the nvidia driver in Ubuntu 14.04 some text and icons are rendered incorrectly, sometimes content is displayed distorted in a triangle instead of a rectanglar window, and X resets intermittently.

Often screen resolutions on offer are far lower than those offered with the open source driver.

The NVIDIA binary driver seems to be very weak at reliably probing this information from the monitor and relies on additional information in If you have problems with low resolution icons, shortcuts and menus placed strangely, and especially desktop size not matching your monitor, this may be due to a bug with multiple monitor setup.

If you've previously setup a second monitor and have it plugged in but not turned on, Ubuntu/Xubuntu may be counfounded by this.

This mode is opposite of Alternate Frame rendering by instead using the last GPU as the primary, and every GPU above it as the next in line. Essentially, just enable "GLDoom3" and also "GLThreaded Optimizations".

One may also setup an "Always On" profile setting for "GLThreaded Optimizations" as an example of settings you can always have activated.

I've attempted to use GLDoom3 on other game engines such as the Spark Engine used by Natural Selection 2...

sadly it only made the game run at the speed of one GPU, still not enabling the second one to work in SLI outside the ID Tech 4 Engine...

It's up to you to leave it on or disable it since there's the chance it can affect your Open GL performance negatively.