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The GraphicsConsoleDxe driver (in MdeModulePkg/Universal/Console) determines the preferred video resolution from the dynamic PCDs - gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution - gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution Setting the graphics resolution during boot is useful when the guest OS (for lack of a dedicated display driver) continues to work with the original GOP resolution and framebuffer. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15366 6f19259b-4bc3-4df7-8a09-765794883524