Chapter 23. Configuring Depth 30 Displays
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## Chapter 23. Configuring Depth 30 Displays

This driver release supports X screens with screen depths of 30 bits per pixel (10 bits per color component) on NVIDIA Quadro GPUs based on G80 and higher chip architectures. This provides about 1 billion possible colors, allowing for higher color precision and smoother gradients.

When displaying a depth 30 image on a digital flat panel, the color data will be dithered to 8 or 6 bits per pixel, depending on the capabilities of the flat panel. VGA outputs can display the full 10 bit range of colors.

To work reliably, depth 30 requires X.Org 7.3 or higher and pixman 0.11.6 or higher.

In addition to the above software requirements, many X applications and toolkits do not understand depth 30 visuals as of this writing. Some programs may work correctly, some may work but display incorrect colors, and some may simply fail to run. In particular, many OpenGL applications request 8 bits of alpha when searching for FBConfigs. Since depth 30 visuals have only 2 bits of alpha, no suitable FBConfigs will be found and such applications will fail to start.

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