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CONFIG_FB_I810_GTF: use VESA Generalized Timing Formula

General informations

The Linux kernel configuration item CONFIG_FB_I810_GTF has multiple definitions:

use VESA Generalized Timing Formula found in drivers/video/Kconfig

The configuration item CONFIG_FB_I810_GTF:

Help text

If you say Y, then the VESA standard, Generalized Timing Formula or GTF, will be used to calculate the required video timing values per video mode. Since the GTF allows nondiscrete timings (nondiscrete being a range of values as opposed to discrete being a set of values), you'll be able to use any combination of horizontal and vertical resolutions, and vertical refresh rates without having to specify your own timing parameters. This is especially useful to maximize the performance of an aging display, or if you just have a display with nonstandard dimensions. A VESA compliant monitor is recommended, but can still work with non-compliant ones. If you need or want this, then select this option. The timings may not be compliant with Intel's recommended values. Use at your own risk.

If you say N, the driver will revert to discrete video timings using a set recommended by Intel in their documentation.

If unsure, say N.

use VESA Generalized Timing Formula found in drivers/video/fbdev/Kconfig

The configuration item CONFIG_FB_I810_GTF:

Help text

If you say Y, then the VESA standard, Generalized Timing Formula or GTF, will be used to calculate the required video timing values per video mode. Since the GTF allows nondiscrete timings (nondiscrete being a range of values as opposed to discrete being a set of values), you'll be able to use any combination of horizontal and vertical resolutions, and vertical refresh rates without having to specify your own timing parameters. This is especially useful to maximize the performance of an aging display, or if you just have a display with nonstandard dimensions. A VESA compliant monitor is recommended, but can still work with non-compliant ones. If you need or want this, then select this option. The timings may not be compliant with Intel's recommended values. Use at your own risk.

If you say N, the driver will revert to discrete video timings using a set recommended by Intel in their documentation.

If unsure, say N.

Hardware

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