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VBIOS Startup Screen on Portrait Panels: App Note IntroductionNative, portrait orientation panels are fast becoming a common display device in embedded systems. These portrait panels, with their height dimensions much larger than their widths, are already commonly found in cell phones, smartphones and PDAs. In certain embedded devices, these same kinds of displays are now becoming more popular, such as in RFID scanners, handheld barcode readers, and tablet PCs. But, because these displays use native portrait display timings, an incompatibility can exist with legacy VBIOS.This application note describes the technical methods implemented by Intel to enable Intel® SCH US15W-based platforms using Intel® Embedded Graphics Drivers to boot with splash screens successfully in portrait orientation into a Windows* XP-based operating system. Intel customers should be able to follow the guidelines contained herein to enable portrait mode during boot within their Windows XP, Intel® Embedded Graphics Driver-based Intel® SCH US15W system as well.As ECG ventures into the world of “truly embedded” devices, Intel’s embedded division faces competition from companies such as TI* and Freescale*. Intel continues to showcase its own strength in the embedded processor and graphics market by bringing over the large expanse of legacy x86 software as free or low-cost content to these new embedded customers.This application note intends to convert more slates, tablets, web books, and other devices requiring portrait display mode to Intel-based platforms by providing support of displays whereby there are more vertical lines than horizontal pixels from boot through post-boot transition and into the Windows* operating system.Read the full VBIOS Startup Screen on Portrait Panels Application Note.
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