Article Summary: This article provides information on "Why the Precision Mobile Workstation M4800 systems may not have a Switchable Graphics BIOS option when ordered with QHD+ displays".
Many Dell portable systems have an option for switchable graphics that allows the system to utilize Intel Unified Memory Architecture (UMA) graphics for applications that do not require the Advanced Micro Devices (AMD) or nVidia dedicated graphics processors. This option is available as a power saving measure as the Intel UMA graphics are ideal for battery operation and other conditions where saving power is a preference.
The Precision Mobile Workstation M4800 system is one of the premier Dell portable systems. This system has four options when selecting the internal Liquid Crystal Display (LCD) display.
The HD and FHD displays use a Low Voltage Differential Signal (LVDS) cabling connection between the graphics adapter and the LCD display. This cable uses an analog circuit to transmit the video data between the graphics adapter and the LCD.
The QHD+ & UHD displays have Embedded Display Port (eDP) cabling allowing for a direct digital connection between the graphics adapter and the LCD. Intel UMA graphics doesn't interface with this technology and is disabled as an option in the BIOS on systems with the QHD+ & UHD LCD displays.
Article ID: SLN285314
Last Date Modified: 06/01/2015 05:21 AM
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