显示器无信号

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1


### Overscan
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

### Framebuffer
#framebuffer_width=

#framebuffer_height=

### Overscan
#overscan_left=

#overscan_right=

#overscan_top=

#overscan_bottom=

# display_rotate=0        Normal
# display_rotate=1        90 degrees
# display_rotate=2        180 degrees
# display_rotate=3        270 degrees
display_rotate=0

# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1

#hdmi_group=

#hdmi_mode=

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
arm_freq=700

# GPU memory
gpu_mem=128

# for more options see http://elinux.org/RPi_config.txt




这是我 config的内容 我是用做信息发布机用的 镜像文件有点不同

希望能帮我改一改 在线求解答急！！

看这个：http://www.shumeipai.net/thread-14220-1-1.html