DirectFB表面缓冲区分配失败

Question

我正在使用Directfb 1.7.7，尝试将加速合成设为ON时看到错误“缓冲区分配失败”。下面是印刷品。

(!) Core/SurfBuffer: Buffer allocation failed!
    --> A general or unknown error occured
(!) Core/SurfBuffer: Buffer allocation failed!
    --> A general or unknown error occured
(*) FBDev/Mode: Setting 1920x1080 ARGB
(*) FBDev/Mode: Switched to 1920x1080 (virtual 1920x2160) at 32 bit (ARGB), pitch 7680
(!!!)  *** WARNING [unable to adjust heap offset] *** [surfacemanager.c:179 in dfb_surfacemanager_adjust_heap_offset()]

我在Directfbrc和FBdev内存16200“ vram0_size =（1920 * 1080 * 4 * 2/1024）KB”中分配了64 MB“ surface-shmpool-size = 64000”表面池内存

有人可以建议我还需要为表面分配内存吗？