XBMC 和 omxplayer无法播放视频

安装了XBMC，但是当我插入u盘播放的时候，什么反应也没有只是看见播放的时间再动，我试了很多种格式，而且都是100M左右的视频，都没有反应
下载了2012-12-16-wheezy-raspbian.zip和2013-02-09-wheezy-raspbian.zip，烧进镜像后开机配置,进入系统是正常的，网页也能正常打开，可以使用omxplayer播放MP3，但是无法播放各种格式的视频，后配置gpu_mem=128，也是不行，错误log如下：
00:00:00 T:0   DEBUG: DllBcm: Using omx system library
00:00:00 T:0   DEBUG: DllOMX: Using omx system library
00:00:00 T:0   DEBUG: DllAvFormat: Using libavformat system library
00:00:00 T:0   DEBUG: DllAvUtilBase: Using libavutil system library
00:00:00 T:0   DEBUG: DllAvCodec: Using libavcodec system library
00:00:00 T:0   DEBUG: DllAvFormat: Using libavformat system library
00:00:00 T:0   DEBUG: DllOMX: Using omx system library
00:00:00 T:0   DEBUG: COMXCoreComponent::Initialize OMX.broadcom.clock input port 80 output port 81
00:00:00 T:0   DEBUG: DllAvUtilBase: Using libavutil system library
00:00:00 T:0   DEBUG: DllAvCodec: Using libavcodec system library
00:00:00 T:0   DEBUG: DllAvFormat: Using libavformat system library
00:00:00 T:0   DEBUG: DllOMX: Using omx system library
00:00:00 T:0   DEBUG: Previous line repeats 5 times.
00:00:00 T:0   DEBUG: COMXCoreComponent::Initialize OMX.broadcom.video_decode input port 130 output port 131
00:00:00 T:0   DEBUG: DllOMX: Using omx system library
00:00:00 T:0   DEBUG: COMXCoreComponent::Initialize OMX.broadcom.video_render input port 90 output port 90
00:00:00 T:0   DEBUG: DllOMX: Using omx system library
00:00:00 T:0   DEBUG: COMXCoreComponent::Initialize OMX.broadcom.video_scheduler input port 10 output port 11
00:00:00 T:0   DEBUG: DllOMX: Using omx system library
00:00:00 T:0   DEBUG: COMXCoreComponent::Initialize OMX.broadcom.text_scheduler input port 150 output port 151
00:00:00 T:0   ERROR: COMXCoreComponent:ecoderEventHandler OMX.broadcom.video_decode - OMX_EventError detected, nData1(0x80001019), port 1
00:00:00 T:0   DEBUG: COMXCoreComponent::AllocInputBuffers component(OMX.broadcom.video_decode) - port(130), nBufferCountMin(1), nBufferCountActual(60), nBufferSize(81920), nBufferAlignmen(16)
00:00:00 T:0   ERROR: COMXCoreComponent::AllocInputBuffers component(OMX.broadcom.video_decode) - OMX_UseBuffer failed with omx_err(0x80001018)
00:00:00 T:0   ERROR: COMXVideo::Open AllocOMXInputBuffers error (080001018)
我换了一块树莓派的板子还是这样，实在困惑啊，不可能两块板子都是坏的或者几张SD卡都是坏的吧？

大家都没有遇到过类似的问题吗？