闲着没事,玩了一下Lubuntu显示相关的一些东西,在这里总结一下:
1.显示比例相关:
查看当前显示比例:
root@firefly:~# cat /sys/class/graphics/fb0/scale
xscale=100 yscale=100
left=100 top=100 right=100 bottom=100
设置显示比例:
root@firefly:~# echo 95 > /sys/class/graphics/fb0/scale
root@firefly:~# cat /sys/class/graphics/fb0/scale
xscale=95 yscale=95
left=95 top=95 right=95 bottom=95
设置横向显示比例:
root@firefly:~# echo yscale=80 > /sys/class/graphics/fb0/scale
root@firefly:~# cat /sys/class/graphics/fb0/scale
xscale=100 yscale=80
left=100 top=80 right=100 bottom=80
设置纵向显示比例:
root@firefly:~# echo xscale=80 > /sys/class/graphics/fb0/scale
root@firefly:~# cat /sys/class/graphics/fb0/scale
xscale=80 yscale=100
left=80 top=100 right=80 bottom=100
2.HDMI显示分辨率
查看当前HDMI显示分辨率:
root@firefly:~# cat /sys/class/display/display0.HDMI/mode
1920x1080p-60
查看支持的HDMI显示分辨率:
root@firefly:~# cat /sys/class/display/display0.HDMI/modes
auto
1920x1080p-60
1920x1080p-50
1280x720p-60
1280x720p-50
720x576p-50
720x480p-60
设置HDMI显示分辨率(注:重启后会返回默认设置):
root@firefly:~# echo 720x480p-60 > /sys/class/display/display0.HDMI/mode
设置32位颜色显示深度
设置显示颜色深度需要用到fbset, 由于Firefly-RK3288的Lubuntu已经默认安装了,所以不需要安装,如需安装,执行:sudo apt-get install fbset
创建文件:/etc/init/fbset.conf 内容为:
# fbset - run fbset to set truecolor fbmode
descrip
tion "run fbset ASAP"
start on startup and started udev or starting lightdm
task
script
[ -x /bin/fbset ] && /bin/fbset -a -nonstd 1 -depth 32 -rgba "8/0,8/8,8/16,8/24"
end script
创建文件:/etc/X11/xorg.conf 内容为:
Section "Screen"
Identifier "Default Screen"
DefaultDepth 24
EndSection
在启动配置文件/etc/rc.local中添加:
service lightdm stop
fbset -a -nonstd 1 -depth 32 -rgba 8/0,8/8,8/16,8/24
service lightdm start
原作者:linjc