The following registry entries are located at: Settings for Colibri Txx and Apalis Txx Modules Only Reserved internal SRAM for display driver.ħ-bit i2c address where the EDID EEPROM containing display timing information is located.ĭisplay Enable (DISP_GPIO) off delay in ms compared to the LCD data signals Overrides the default value for the video ram. This can help if your display is connected over TTL Stops the Pixel Clock if a LCD underrun occurs. Settings for Colibri PXAxxx Modules Only Registry Keyīitmask to show additional display driver infos on the debug port. This value could be changed to reduce EMC problems. GPIO/Pin x used to Turn On/Off Display Powerĭisplay Enable (DISP_GPIO) on delay in ms compared to the LCD data signalsĭisplay signal buffer strength. Registry Keyīegin of Line Width (Back Porch) in PixelsĮnd of Line Width (Front Porch) in Pixelsīegin of Frame Width (Back Porch) in LinesĮnd of Frame Width (Front Porch) in Lines For the other outputs, EDID data is read from the screen, and the most appropriate VESA timings are used. The table below lists all available registry settings for the display driver.įor the Tegra modules, timings only affect the LCD output.
Settings for all Colibri and Apalis Modules This will make display configuration more compatible across different modules and families.
On those platforms GPIO numbers are not used, the BL_GPIO and DISP_GPIO settings actually use PIN number (SO-DIMM number for IMX7 and Colibri-IMX6 and MXM3 number for Apalis IMX6). If you want to use SO-DIMM pin numbers you can use then BL_PIN and DISP_PIN settings, but those will work only if the corresponding *_GPIO parameter is not set. On Vybrid-based modules, the BL_GPIO and DISP_GPIO settings use GPIO numbers. Whenever a GPIO for the Tegra based modules is used, a special conversion from GPIO name to GPIO number needs to be used: The Display Driver Settings are located in registry file under the key name mentioned below: Colibri Moduleįor PXA and Tegra-based modules, you can use the Colibri Tweak Tool to adjust most of these settings.įor Vybrid, i.MX6 and i.MX7 and Tegra based modules, you can use the Display Tool to adjust most of these settings. Is this page helpful? Display Driver Registry Settings Registry Locations
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