树莓派7寸官方屏修改分辨率
2017-10-23 00:18
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树莓派7寸官方屏设置
1、备份启动配置文件sudo cp /boot/config.txt /home/pi拷贝boot下的config.txt到home/pi下
sudo chmod 777 config.txtconfig.txt添加可编辑属性
2、config.txt配置
用文本编辑器打开config.txt,以下是示例
# For more options and information see # http://rpf.io/configtxt # 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=1000 framebuffer_height=600 # 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=1 #hdmi_mode=1 # 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 lcd_rotate=2
修改分辨率:官方屏默认分辨率为800*480,比例为5:3。config.txt中找到以下两行,去掉#号
framebuffer_width=1000
framebuffer_height=600
上下翻转屏幕,在最后一行加上
lcd_rotate=2
3、保存后打开终端,输入
sudo cp config.txt /boot/拷贝config.txt到/boot/下。
4、重启
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第二种方法是将SD卡取出,在windows系统下修改config.txt。
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