ATI Technologies Radeon 8500 User Manual page 8

8 RADEON™ 8500/ RADEON 7500™ User's Guide
The RADEON 8500/RADEON 7500 offers
Ratiometric expansion. Ratiometric expansion (or
digital panel scaling as it is commonly known)
expands a low resolution image to fill a higher
resolution panel. However, Ratiometric expansion is
Note
only available on the primary display. Therefore, if a
DFP is set as secondary, the extended desktop is
disabled and the resolution is less than the DFP
monitor's native resolution. This causes the DFP
monitor to default to center mode.