Configuring LVDS and SDVO Ports
From the Port Settings tab in the LVDS Display (Advanced Settings) and SDVO Display (Advanced Settings) sections you can specify whether to use EDID timings or customized DTD timings for the display connected to this specific port. In this section you can also specify attribute, I2C, and flat panel settings and create a new DTD that can be used with any configuration. The table below describes each of these settings.
Enter a name for the port. This is a required field and the name must be between 1 and 50 characters and may contain spaces. |
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This list allows you select a rotation for the display connected to this port. You can choose between 0, 90, 180, and 270 degrees. The default is 0. |
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Check this box if you want the display connected to this port to be inverted horizontally. The default is not to invert horizontally. |
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When this option is enabled it DISABLES centering. Also, depending on the combination of “edid” + “user-dtd” + connected hardware, Intel® EMGD will add missing compatibility modes (6x4, 8x6, 10x7& 12x10) via centering. Use this option to disable this feature. |
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For SDVO only, this option provides flexibility for enabling or disabling display tuning functionality of the SDVO Clipped Display software workaround. Enabling Display Tuning operation triggers the graphics driver to check display validity and attempts to tune the display to a proper working state if it appears with minor “clipping” or “drift.” Note that with the display tuning enabled, the mode set operation takes longer. Display tuning is enabled by default. You are encourage to turn off the display tuning option if the provided Reference Frequency is accurate, as this will reduce the duration of the mode setting operation. Ensure you complete the Reference Frequency field if disabling this option. |
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For SDVO only, this option defines the internal timing value that the graphics driver expects for the SDVO Clip software workaround algorithm. The reference frequency should be set according to the actual value of the BCLK × 2; for example if BCLK is 99.75MHz, the reference frequency should be set as 99.75MHz × 2=199500KHz. The default Reference Frequency value is set as 199500KHz. This option is in unit KHz, range is from 190000KHz to 210000KHz with stepping of 1KHz. |
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This option disables the standard timings built into the graphics driver. |
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This option prevents the graphics driver from getting display timings from the display device. |
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These options allow you to set EDID options for the display. Intel® EMGD supports three different types of EDID display modes: • Built-in display modes: These modes are hard-coded in Intel® EMGD. These modes can be filtered based on the EDID block. • EDID Block: These are Detailed Timing Descriptors read from an EDID display. An EDID display can contain DTD as well as other information about the display. • User-specified DTDs (see Creating a New Customized DTD). If the display attached to this port contains EDID information, you can choose one or more of the following options from the If EDID Device section to determine which set of timings to use for the display connected to the port: • Use driver built in standard timings — If this box is checked, the standard timings built into the Intel® EMGD are used. • Use EDID block — If this box is checked, the EDID block is used. • Use user-defined DTDs — If this box is checked, a user-defined DTD is used. You can select which DTD to use by checking the appropriate box in the Display Timings Descriptors (DTDs) section. If no DTDs are defined, you can create a custom DTD using instructions in Creating a New Customized DTD. If you select both Use driver built-in standard timings and Use EDID block, the Intel® EMGD uses its built-in display timings and the timings provided by the display. If the display attached to this port does not contain EDID information, you can choose one or both of the following options from the If Not EDID Device section: • Use driver built-in standard timings — If this box is checked, the standard timings are used. • Use user-defined DTDs — If this box is checked, a user defined DTD is used. You can select which DTD to use by checking the appropriate box in the Custom Display Timings Descriptors (DTDs) section. If no DTDs are defined, you can create a custom DTD using instructions in Creating a New Customized DTD. |