网站建设解决方,网络互联网推广,wordpress站外链接跳转页面,怎么自己做网站卖东西树莓派所有的启动初始化都是在config.txt中完成的#xff0c;因此#xff0c;若插入HDMI树莓派没有显示桌面#xff0c;则是没有配置HDMI。
首先在找到config.txt#xff0c;两种方法#xff1a;
第一种方法#xff0c;将SD卡取出#xff0c;用读卡器在windows上找到因此若插入HDMI树莓派没有显示桌面则是没有配置HDMI。
首先在找到config.txt两种方法
第一种方法将SD卡取出用读卡器在windows上找到
第二种方法若登陆了树莓派直接在命令行搜索 sudo find / -name config.txt
可以看到位于/boot/config.txt中 找到该文件后打开并按照如下修改
uncomment相关注释
hdmi_safe1
overscan_left16
overscan_right16
overscan_top16
overscan_bottom16
hdmi_group1
hdmi_mode16
hdmi_drive2
文件中对应的行如下
# uncomment if you get no picture on HDMI for a default safe mode6 hdmi_safe178 # uncomment this if your display has a black border of unused pixels visible9 # and your display can output without overscan10 #disable_overscan11112 # uncomment the following to adjust overscan. Use positive numbers if console13 # goes off screen, and negative if there is too much border14 overscan_left1615 overscan_right1616 overscan_top1617 overscan_bottom161819 # uncomment to force a console size. By default it will be displays size minus20 # overscan.21 #framebuffer_width128022 #framebuffer_height7202324 # uncomment if hdmi display is not detected and composite is being output25 #hdmi_force_hotplug12627 # uncomment to force a specific HDMI mode (this will force VGA)28 hdmi_group129 hdmi_mode163031 # uncomment to force a HDMI mode rather than DVI. This can make audio work in32 # DMT (computer monitor) modes33 hdmi_drive2
其中不同的mode表明不同的分辨率部分分辨率如下:
hdmi_mode 1 VGAhdmi_mode 2 480p 60 Hzhdmi_mode 3 480p 60 Hz Hhdmi_mode 4 720p 60 Hzhdmi_mode 5 1080i 60 Hzhdmi_mode 6 480i 60 Hzhdmi_mode 7 480i 60 Hz Hhdmi_mode 8 240p 60 Hzhdmi_mode 9 240p 60 Hz Hhdmi_mode 10 480i 60 Hz 4xhdmi_mode 11 480i 60 Hz 4x H.hdmi_mode 12 240p 60 Hz 4xhdmi_mode 13 240p 60 Hz 4x H.hdmi_mode 14 480p 60 Hz 2xhdmi_mode 15 480p 60 Hz 2x H.hdmi_mode 16 1080p 60 Hzhdmi_mode 17 576p 50 Hzhdmi_mode 18 576p 50 Hz Hhdmi_mode 19 720p 50 Hzhdmi_mode 20 1080i 50 Hzhdmi_mode 21 576i 50 Hzhdmi_mode 22 576i 50 Hz Hhdmi_mode 23 288p 50 Hzhdmi_mode 24 288p 50 Hz Hhdmi_mode 25 576i 50 Hz 4xhdmi_mode 26 576i 50 Hz 4x H.hdmi_mode 27 288p 50 Hz 4xhdmi_mode 28 288p 50 Hz 4x H.hdmi_mode 29 576p 50 Hz 2xhdmi_mode 30 576p 50 Hz 2x H.hdmi_mode 31 1080p 50 Hzhdmi_mode 32 1080p 24 Hzhdmi_mode 33 1080p 25 Hzhdmi_mode 34 1080p 30 Hzhdmi_mode 35 480p 60 Hz 4xhdmi_mode 36 480p 60 Hz 4xHhdmi_mode 37 576p 50 Hz 4xhdmi_mode 38 576p 50 Hz 4x H.hdmi_mode 39 1080i 50 Hz减少消隐hdmi_mode 40 1080i 100 Hzhdmi_mode 41 720p 100 Hzhdmi_mode 42 576p 100 Hzhdmi_mode 43 576p 100 Hz Hhdmi_mode 44 576i 100 Hz hdmi_mode 45 576i 100 Hz Hhdmi_mode 46 1080i 120 Hz hdmi_mode 47 720p 120 Hz hdmi_mode 48 480p 120 Hz hdmi_mode 49 480p 120 Hz Hhdmi_mode 50 480i 120 Hz hdmi_mode 51 480i 120 Hz Hhdmi_mode 52 576p 200 Hz hdmi_mode 53 576p 200 Hz Hhdmi_mode 54 576i 200 Hz hdmi_mode 55 576i 200 Hz Hhdmi_mode 56 480p 240 Hz hdmi_mode 57 480p 240 Hz Hhdmi_mode 58 480i 240 Hz hdmi_mode 59 480i 240 Hz H
H表示169变体通常为43模式。
2x像素加倍即更高的时钟频率每个像素重复两次
4倍像素翻了四倍即更高的时钟频率每个像素重复四次
