Resolution, refresh rate, and color bit depth can be changed after installation and reboot via a Microsoft Windows display property sheet. Other operations such as enabling and disabling ports (display output), rotation, port configuration, and attribute control are accessible via the standard display driver escape protocol.
Viewing and Changing the Driver Configuration from Microsoft Windows
Note: For correct display, EMGDGUI requires the MS Sans Serif(8) font to be installed in the system font folder.
You can change certain configuration attributes of the Intel® Embedded Media and Graphics Driver using the emgdgui.exe program located in the \Utilities folder. On Microsoft Windows XP systems, you can access the Intel® Embedded Media and Graphics Driver configuration on the display properties setting tab. This program launches the Intel® Embedded Media and Graphics Driver Configuration GUI that consists of the following four tabs:
• Driver Info — Contains the driver information.
• Display Config — Contains current display information and allows configuration of display configurations, display resolutions and bit depth for primary and secondary displays, flip, rotation, and enabling/disabling for a given port.
• Display Attributes — Contains the supported Port Driver (PD) attributes and allows configuration of PD attributes.
• Color Correction — Contains color-correction information for the framebuffer and overlay. Using this tab, you can change the framebuffer and overlay color settings.
To view or change the driver settings using the GUI interface, follow this procedure.
1. Double-click the emgdgui.exe icon in the Utilities folder.
To change display configuration, mode, and display setting, select Display Config.
Example Runtime Configuration GUI — Driver Info Tab
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2. Click the Display Config tab to show the current configuration.
Example Runtime Configuration GUI — Display Config Tab
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The Display Status section of the above dialog shows the current configuration for the Primary and Secondary displays.
3. The “Swap Primary Display” option allows you to swap the port order for primary and secondary displays.
4. In the Display Configuration section of the dialog, select the required display configuration in the Display Config drop-down list. This allows the user to choose between Single, Clone, and Extended for all connected ports. A maximum of two ports per display configuration is currently allowed.
5. In the Primary Mode and Secondary Mode sections of the dialog, change resolution and bit depth of the primary and secondary displays via the Resolution and Bit Depth drop-down lists.
6. In the Display Settings section of the dialog, view and change the settings for a port, rotate and flip the display via the appropriate drop-down lists:
— Port: Allows you to select the required port.
— Port Status: Allows you to enable or disable the selected port. May not be available if there is only one currently active port.
— Rotate: You can rotate the display 0, 90, 180, and 270 degrees.
— Flip: Inverts the display horizontally.
Note: If you change any configuration settings in the Display Config dialog box, click Apply for the changes to take effect.
7. Click the Display Attributes tab to view and change the attributes for a port. The screen that appears depends upon the port drivers used.
Example Runtime Configuration GUI — Display Attributes Tab
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The figure above shows the attributes that can be changed for the selected port in the Port drop-down list. You can change the Port Driver by selecting the appropriate one for your device. The attributes that appear on this tab depend upon the selected port driver. Please see Port Driver Attributes for a complete list of port driver attributes.
8. Click the Color Correction tab to view and change color corrections. The figure Example Runtime Configuration GUI — Color Correction Tab shows a sample Color Correction tab screen.
Color Correction is available for both overlays and framebuffers, and is accessed under the New Configuration link at the top of the main CED window.
Example Runtime Configuration GUI — Color Correction Tab
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Table 27. Framebuffer Color Correction Values (applies to R, G, B color)
Table 28. Overlay Color Correction Values (applies to ALL color)
Note: Overlay Hue correction is available only for Linux operating systems.
The following sub-steps present an example color-correction procedure:
a. Select Framebuffer in the Surface section and select the appropriate port for the color correction to be applied to or select Overlay in the Surface section for color correction to be applied to the overlay.
b. Select the required color to be corrected in the Color section.
c. Select the required color attribute to be corrected in the Gamma Correction section.
d. Click Restore Defaults to restore the default values.
Note: If you make any changes to the color-correction settings, click Apply to have the changes take effect.
Note: The hardware does not support brightness, saturation, and contrast of the overlay and second overlay with RGB pixel format.
