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由 Keith Packard 提交于
RandR has two sets of screen geometry information: 1. CRTC. These are the physical scanout engines in the hardware 2. Monitors. These are the logical partitions of the screen. By default, each CRTC gets mapped to a Monitor. However, some monitors actually require two CRTCs to drive them due to limitations in the scanout hardware. Users can also create 'virtual' monitors to support VNC or other systems. This patch makes the RandR code prefer the Monitor mechanism to the older CRTC mechanism. If the server doesn't support a new enough RandR version, the existing CRTC code is used instead. The name of the monitor is also provided in place of the arbitrary number to help users select the desired source. Signed-off-by: NKeith Packard <keithp@keithp.com>
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