以下为config.txt在1280*1024分辨率下的正确配置方式

# For more options and information see
# http://www.raspberrypi.org/documentation/configuration/config-txt.md
# Some settings may impact device functionality. See link above for details


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


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


# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
overscan_left=16
overscan_right=16
overscan_top=16
overscan_bottom=16


# uncomment to force a console size. By default it will be display's size minus
# overscan.
framebuffer_width=1280
framebuffer_height=1024


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


# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=2
hdmi_mode=35


# 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=800


# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on


# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi


# Additional overlays and parameters are documented /boot/overlays/README


# Enable audio (loads snd_bcm2835)
dtparam=audio=on

此时保存config.txt，将SD卡插入树莓派进行上电启动，此时树莓派屏幕亮起，启动正常。

以上即为树莓派系统的安装过程。