玩转树莓派

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本文作者:李德强
          第四节 设置显示模式
 
 

        树莓派3B型已经集成了HDMI多媒体接口,可以直接连接到HDMI的显示器上。但是由于树莓派出厂的显示模式与显示器的分辨率可能不一致,往往会出现屏幕显示不完整的问题:

        于是我们需要对树莓派的显示模式做一些配置,使其能够正常的显示内容。我们需要打开/boot/config文件,并加入以下内容:

hdmi_force_hotplug=1          #强制使用HDMI输出
config_hdmi_boost=4           #HDMI信号增强
hdmi_group=2                  #显示模式决定分辨率group=2
hdmi_mode=9                   #mode=9 代表800×600 @ 60Hz
hdmi_drive=2                  #强制音频输出到HDMI口,如果想让音频从模拟输出需要去掉此项
hdmi_ignore_edid=0xa5000080   #强行按hdmi_group和hdmi_mode规定的分辨率输出,不检测显示器自身的分辨率
disable_overscan=1            #强行禁止保留黑边功能

        修改成合适的分辨率之后我们的显示器就可以将完整的内容显示出来了:

        如果你需要其它模式的分辨率,可以参考下列两张表来修改你自己需要的分辨率:

hdmi_group=1

hdmi_mode=1    VGA
hdmi_mode=2    480p  60Hz
hdmi_mode=3    480p  60Hz  H
hdmi_mode=4    720p  60Hz
hdmi_mode=5    1080i 60Hz
hdmi_mode=6    480i  60Hz
hdmi_mode=7    480i  60Hz  H
hdmi_mode=8    240p  60Hz
hdmi_mode=9    240p  60Hz  H
hdmi_mode=10   480i  60Hz  4x
hdmi_mode=11   480i  60Hz  4x H
hdmi_mode=12   240p  60Hz  4x
hdmi_mode=13   240p  60Hz  4x H
hdmi_mode=14   480p  60Hz  2x
hdmi_mode=15   480p  60Hz  2x H
hdmi_mode=16   1080p 60Hz
hdmi_mode=17   576p  50Hz
hdmi_mode=18   576p  50Hz  H
hdmi_mode=19   720p  50Hz
hdmi_mode=20   1080i 50Hz
hdmi_mode=21   576i  50Hz
hdmi_mode=22   576i  50Hz  H
hdmi_mode=23   288p  50Hz
hdmi_mode=24   288p  50Hz  H
hdmi_mode=25   576i  50Hz  4x
hdmi_mode=26   576i  50Hz  4x H
hdmi_mode=27   288p  50Hz  4x
hdmi_mode=28   288p  50Hz  4x H
hdmi_mode=29   576p  50Hz  2x
hdmi_mode=30   576p  50Hz  2x H
hdmi_mode=31   1080p 50Hz
hdmi_mode=32   1080p 24Hz
hdmi_mode=33   1080p 25Hz
hdmi_mode=34   1080p 30Hz
hdmi_mode=35   480p  60Hz  4x
hdmi_mode=36   480p  60Hz  4xH
hdmi_mode=37   576p  50Hz  4x
hdmi_mode=38   576p  50Hz  4x H
hdmi_mode=39   1080i 50Hz  reduced blanking
hdmi_mode=40   1080i 100Hz
hdmi_mode=41   720p  100Hz
hdmi_mode=42   576p  100Hz
hdmi_mode=43   576p  100Hz H
hdmi_mode=44   576i  100Hz
hdmi_mode=45   576i  100Hz H
hdmi_mode=46   1080i 120Hz
hdmi_mode=47   720p  120Hz
hdmi_mode=48   480p  120Hz
hdmi_mode=49   480p  120Hz H
hdmi_mode=50   480i  120Hz
hdmi_mode=51   480i  120Hz H
hdmi_mode=52   576p  200Hz
hdmi_mode=53   576p  200Hz H
hdmi_mode=54   576i  200Hz
hdmi_mode=55   576i  200Hz H
hdmi_mode=56   480p  240Hz
hdmi_mode=57   480p  240Hz H
hdmi_mode=58   480i  240Hz
hdmi_mode=59   480i  240Hz H

 

 

hdmi_group=2

hdmi_mode=1    640x350   85Hz
hdmi_mode=2    640x400   85Hz
hdmi_mode=3    720x400   85Hz
hdmi_mode=4    640x480   60Hz
hdmi_mode=5    640x480   72Hz
hdmi_mode=6    640x480   75Hz
hdmi_mode=7    640x480   85Hz
hdmi_mode=8    800x600   56Hz
hdmi_mode=9    800x600   60Hz
hdmi_mode=10   800x600   72Hz
hdmi_mode=11   800x600   75Hz
hdmi_mode=12   800x600   85Hz
hdmi_mode=13   800x600   120Hz
hdmi_mode=14   848x480   60Hz
hdmi_mode=15   1024x768  43Hz  DO NOT USE
hdmi_mode=16   1024x768  60Hz
hdmi_mode=17   1024x768  70Hz
hdmi_mode=18   1024x768  75Hz
hdmi_mode=19   1024x768  85Hz
hdmi_mode=20   1024x768  120Hz
hdmi_mode=21   1152x864  75Hz
hdmi_mode=22   1280x768        reduced blanking
hdmi_mode=23   1280x768  60Hz
hdmi_mode=24   1280x768  75Hz
hdmi_mode=25   1280x768  85Hz
hdmi_mode=26   1280x768  120Hz reduced blanking
hdmi_mode=27   1280x800        reduced blanking
hdmi_mode=28   1280x800  60Hz
hdmi_mode=29   1280x800  75Hz
hdmi_mode=30   1280x800  85Hz
hdmi_mode=31   1280x800  120Hz reduced blanking
hdmi_mode=32   1280x960  60Hz
hdmi_mode=33   1280x960  85Hz
hdmi_mode=34   1280x960  120Hz reduced blanking
hdmi_mode=35   1280x1024 60Hz
hdmi_mode=36   1280x1024 75Hz
hdmi_mode=37   1280x1024 85Hz
hdmi_mode=38   1280x1024 120Hz reduced blanking
hdmi_mode=39   1360x768  60Hz
hdmi_mode=40   1360x768  120Hz reduced blanking
hdmi_mode=41   1400x1050       reduced blanking
hdmi_mode=42   1400x1050 60Hz
hdmi_mode=43   1400x1050 75Hz
hdmi_mode=44   1400x1050 85Hz
hdmi_mode=45   1400x1050 120Hz reduced blanking
hdmi_mode=46   1440x900        reduced blanking
hdmi_mode=47   1440x900  60Hz
hdmi_mode=48   1440x900  75Hz
hdmi_mode=49   1440x900  85Hz
hdmi_mode=50   1440x900  120Hz reduced blanking
hdmi_mode=51   1600x1200 60Hz
hdmi_mode=52   1600x1200 65Hz
hdmi_mode=53   1600x1200 70Hz
hdmi_mode=54   1600x1200 75Hz
hdmi_mode=55   1600x1200 85Hz
hdmi_mode=56   1600x1200 120Hz reduced blanking
hdmi_mode=57   1680x1050       reduced blanking
hdmi_mode=58   1680x1050 60Hz
hdmi_mode=59   1680x1050 75Hz
hdmi_mode=60   1680x1050 85Hz
hdmi_mode=61   1680x1050 120Hz reduced blanking
hdmi_mode=62   1792x1344 60Hz
hdmi_mode=63   1792x1344 75Hz
hdmi_mode=64   1792x1344 120Hz reduced blanking
hdmi_mode=65   1856x1392 60Hz
hdmi_mode=66   1856x1392 75Hz
hdmi_mode=67   1856x1392 120Hz reduced blanking
hdmi_mode=68   1920x1200       reduced blanking
hdmi_mode=69   1920x1200 60Hz
hdmi_mode=70   1920x1200 75Hz
hdmi_mode=71   1920x1200 85Hz
hdmi_mode=72   1920x1200 120Hz reduced blanking
hdmi_mode=73   1920x1440 60Hz
hdmi_mode=74   1920x1440 75Hz
hdmi_mode=75   1920x1440 120Hz reduced blanking
hdmi_mode=76   2560x1600       reduced blanking
hdmi_mode=77   2560x1600 60Hz
hdmi_mode=78   2560x1600 75Hz
hdmi_mode=79   2560x1600 85Hz
hdmi_mode=80   2560x1600 120Hz reduced blanking
hdmi_mode=81   1366x768  60Hz
hdmi_mode=82   1080p     60Hz
hdmi_mode=83   1600x900        reduced blanking
hdmi_mode=84   2048x1152       reduced blanking
hdmi_mode=85   720p      60Hz
hdmi_mode=86   1366x768        reduced blanking

 

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