mplayer安装好后不能运行

uranushiko

运行gmplayer提示：
[hiko@LinuxME hiko]$ gmplayer
MPlayer 1.0pre6-3.4.1 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6, Stepping: 0)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
针对有扩展指令集x86 CPU编译: MMX MMX2 3DNow 3DNowEx SSE


vo: X11 running at 1024x768 with depth 24 and 32 bpp (":0.0" => local display)
Failed to open /dev/rtc: No such file or directory (it should be readable by the user.)
请问大侠们我该怎么办阿？