如何使用命令行获取监视器分辨率？

我想找到最适合我的分辨率的壁纸。如何仅通过在命令行中编写命令来获得分辨率？

从这个答案中得出：

xdpyinfo | grep dimensions

或仅获得分辨率：

xdpyinfo | awk '/dimensions/{print $2}'

要么

xdpyinfo  | grep -oP 'dimensions:\s+\K\S+'

我只会用xrandr：

$ xrandr 
Screen 0: minimum 320 x 200, current 3520 x 1200, maximum 32767 x 32767
LVDS1 connected 1600x900+1920+0 (normal left inverted right x axis y axis) 310mm x 174mm
   1600x900       60.0*+
   1440x900       59.9  
   1360x768       59.8     60.0  
   1152x864       60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm
   1920x1200      60.0*+
   1920x1080      60.0     50.0     59.9     24.0     24.0  
   1920x1080i     60.1     50.0     60.0  
   1600x1200      60.0  
   1280x1024      75.0     60.0  
   1152x864       75.0  
   1280x720       60.0     50.0     59.9  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   720x576        50.0  
   720x480        60.0     59.9  
   640x480        75.0     60.0     59.9  
   720x400        70.1  
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

这里有两个屏幕，分辨率为：

• 1600x900（笔记本电脑）
• 1920x1200（显示器）

要仅获取主监视器的分辨率，还可以使用以下python oneliner：

$ python3 -c 'from gi.repository import Gdk; screen=Gdk.Screen.get_default(); \
geo = screen.get_monitor_geometry(screen.get_primary_monitor()); \
print(geo.width, "x", geo.height)'
1920 x 1200

要获得扩展桌面的分辨率（用于多显示器设置）：

$ python3 -c 'from gi.repository import Gdk; screen=Gdk.Screen.get_default(); \
print(screen.get_width(), "x", screen.get_height())'
3520 x 1200

请求是要解决的。这是由

xdpyinfo | grep resolution

您还可以使用：

 xrandr | grep ' connected'

我的一台机器上的输出示例：

LVDS connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm

值得一提的是，当在TwinView中使用多个连接的显示器和/或偏移量时，xdpyinfo将为您提供整套显示器的配置方式的分辨率。如果您需要单个显示器或连接到其中一个显示端口的显示器的分辨率，则需要使用xrandr。但是，即使在这种配置下，xrandr也可能不可靠并且无法显示分辨率。请参阅我的X Windows配置文件中的以下示例条目：

Option "MetaModes" "DP-1: 1440x900 +0+0, DP-3: 1440x900 +1568+0, DP-5: 1440x900 +3136+0"

xrandr输出看起来像这样：

DVI-D-0 disconnected primary (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 410mm x 256mm
   1440x900      59.89*+
   1280x1024     60.02
   1280x960      60.00
   1280x800      59.81
   1280x720      60.00
   1152x864      75.00
   1024x768      70.07    60.00
   800x600       75.00    60.32    56.25
   640x480       75.00    72.81    59.94
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 connected (normal left inverted right x axis y axis)
   1440x900      59.89 +  74.98
   1280x1024     60.02
   1280x960      60.00
   1280x800      59.81
   1280x720      60.00
   1152x864      75.00
   1024x768      70.07    60.00
   800x600       75.00    60.32    56.25
   640x480       75.00    72.81    59.94
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 connected 1440x900+1568+0 (normal left inverted right x axis y axis) 410mm x 256mm
   1440x900      59.89*+
   1280x1024     60.02
   1280x960      60.00
   1280x800      59.81
   1280x720      60.00
   1152x864      75.00
   1024x768      70.07    60.00
   800x600       75.00    60.32    56.25
   640x480       75.00    72.81    59.94

您会看到DP-3在“已连接”的grep显示的行上没有显示分辨率。因此，我发现用于识别任何单个已连接显示器的分辨率的最佳，最一致和可靠的命令是：

/usr/bin/xrandr --query|/usr/bin/grep -A 1 connected|grep -v connected

产生这个：

   1440x900      59.89*+
--
   1440x900      59.89*+  74.98
--
   1440x900      59.89*+

那时，只为一个端口选择不同的分辨率或grep是很简单的。