大家好！我在fedora（2.6内核）上安装fedora,安装了dfb1.4.10,dfb_extra1.20,以及一些相关的库，之后安装dfb_example1.20（屏蔽了一两句后编译安装成功）,但在执行example的时候，却是有些成功（df_andi），有些提示错误（df_fire）,
[root@m src]# ./df_fire
~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.10 |~~~~~~~~~~~~~~~~~~~~~~~~~~
(c) 2001-2010 The world wide DirectFB Open Source Community
(c) 2000-2004 Convergence (integrated media) GmbH
----------------------------------------------------------------
(*) DirectFB/Core: Single Application Core. (2012-04-17 07:33)
(*) Direct/Modules: suppress module 'x11input'
(*) Direct/Thread: Started 'SDL Input' (2704) [INPUT OTHER/OTHER 0/0] <10485760>...
(*) DirectFB/Input: SDL Input 0.1 (Denis Oliver Kropp)
(*) DirectFB/Genefx: MMX detected and enabled
(*) DirectFB/Graphics: SDL Graphics 0.1 (directfb.org)
(*) Direct/Thread: Started 'Screen Update' (2705) [OUTPUT OTHER/OTHER 0/0] <10485760>...
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
(!) DirectFB/Genefx: Could not lock destination!
--> Not supported!
(!) Core/LayerRegion: Could not lock region surface for SetRegion()!
--> Not supported!
(!) Core/LayerRegion: realize_region() in dfb_layer_region_flip_update() failed!
--> Not supported!
(#) DirectFBError [IDirectFBSurface::Lock() failed]: Object is suspended!
我使用的是SDL模式，请问这是怎么一回事啊？望知道的指教，谢谢！
