第2个回答 2017-09-20
You’ll also need to make a small change to the config.txt file that Raspberry Pi uses when it boots.
Using a memory card reader on your desktop computer, insert the Raspberry Pi SD card and open config.txt in your preferred text editor.
Look for the following lines:
#hdmi_force_hotplug=1
#hdmi_drive=2
Both options need to be enabled, which you can do by removing the hash symbol and saving. These options enable VGA output through an HDMI adaptor and sets the screen resolution to a low 640 x 480.
If you want a higher resolution, remove the hash symbols from the following lines:
#hdmi_group=1
#hdmi_mode= 4
You will also need to edit these two lines, changing hdmi_group to 2 and hdmi_mode to 16. Remember to save your changes before safely removing and replacing in your Raspberry Pi.
简单说取树莓SD卡找面config文件面几带#号语句#号掉行