问题标签 [directfb]

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linux - Qt使用directfb作为显示后端,directfb使用backvideo作为缓冲模式,但是WaitVSync导致GUI响应很慢

如标题所述,我使用directfb作为QT的显示后端。因为硬件有BLIT加速能力,directfb自动选择backvideo的缓冲模式,但是WaitVSync导致GUI响应很慢。如果使用 vsync-none 参数禁用 WaitVSync,会导致屏幕出现撕裂。