我正在为 xrandr 创建一个自动化脚本，我只想从中检索实际输出，我知道它应该是连接单词(例如 DP-0(之前的 2 个单词，使用xrandr --verbose：
Xrandr --Verbose
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x1bd
Timestamp: 2846939
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: DVI-D
ConnectorNumber: 0
_ConnectorLocation: 0
non-desktop: 0
supported: 0, 1
HDMI-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x1be
Timestamp: 2846939
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: HDMI
ConnectorNumber: 3
_ConnectorLocation: 3
non-desktop: 0
supported: 0, 1
HDMI-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x1bf
Timestamp: 2846939
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: HDMI
ConnectorNumber: 4
_ConnectorLocation: 4
non-desktop: 0
supported: 0, 1
DP-0 connected primary 3840x2160+0+0 (0x1c1) normal (normal left inverted right x axis y axis) 526mm x 296mm
Identifier: 0x1c0
Timestamp: 2846939
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1 2 3
Transform: 1.500000 0.000000 0.000000
0.000000 1.500000 0.000000
0.000000 0.000000 1.000000
filter: bilinear
_MUTTER_PRESENTATION_OUTPUT: 0
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
EDID:
00ffffffffffff0010acc1d054504130
2c1b0104a5351e783aad75a9544d9d26
0f5054a54b008100b300d100714fa940
8180d1c00101565e00a0a0a029503020
35000e282100001a000000ff0032394a
3050374233304150540a000000fc0044
454c4c205032343138440a20000000fd
0031561d711c010a20202020202001d4
020315b1509005040302071601061112
1513141f20023a801871382d40582c45
000e282100001e011d8018711c162058
2c25000e282100009ebf1600a0803813
4030203a000e282100001a7e3900a080
381f4030203a000e282100001a000000
00000000000000000000000000000000
00000000000000000000000000000062
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: DisplayPort
supported: DisplayPort
ConnectorType: DisplayPort
ConnectorNumber: 2
_ConnectorLocation: 2
non-desktop: 0
supported: 0, 1
2560x1440 (0x1c1) 241.500MHz +HSync -VSync *current +preferred
h: width 2560 start 2608 end 2640 total 2720 skew 0 clock 88.79KHz
v: height 1440 start 1443 end 1448 total 1481 clock 59.95Hz
2048x1080 (0x1c2) 147.180MHz +HSync -VSync
h: width 2048 start 2096 end 2128 total 2208 skew 0 clock 66.66KHz
v: height 1080 start 1083 end 1093 total 1111 clock 60.00Hz
2048x1080 (0x1c3) 58.230MHz +HSync -VSync
h: width 2048 start 2096 end 2128 total 2208 skew 0 clock 26.37KHz
v: height 1080 start 1083 end 1093 total 1099 clock 24.00Hz
1920x1200 (0x1c4) 193.250MHz -HSync +VSync
h: width 1920 start 2056 end 2256 total 2592 skew 0 clock 74.56KHz
v: height 1200 start 1203 end 1209 total 1245 clock 59.88Hz
1920x1080 (0x1c5) 148.500MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x1c6) 148.350MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1920x1080 (0x1c7) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x1c8) 74.180MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
1680x1050 (0x1c9) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1600x1200 (0x1ca) 162.000MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
1280x1024 (0x1cb) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x1cc) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1280x800 (0x1cd) 83.500MHz -HSync +VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.70KHz
v: height 800 start 803 end 809 total 831 clock 59.81Hz
1280x720 (0x1ce) 74.180MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1280x720 (0x1cf) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1152x864 (0x1d0) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1024x768 (0x1d1) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x1d2) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x1d3) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x1d4) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
720x576 (0x1d5) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x480 (0x1d6) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
640x480 (0x1d7) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x1d8) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
640x480 (0x1d9) 25.170MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.46KHz
v: height 480 start 490 end 492 total 525 clock 59.93Hz
DP-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x1da
Timestamp: 2846939
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: DisplayPort
ConnectorNumber: 2
_ConnectorLocation: 2
non-desktop: 0
supported: 0, 1
DP-2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x1db
Timestamp: 2846939
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: DisplayPort
supported: DisplayPort
ConnectorType: DisplayPort
ConnectorNumber: 1
_ConnectorLocation: 1
non-desktop: 0
supported: 0, 1
DP-3 disconnected (normal left inverted right x axis y axis)
Identifier: 0x1dc
Timestamp: 2846939
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: DisplayPort
ConnectorNumber: 1
_ConnectorLocation: 1
non-desktop: 0
supported: 0, 1
[更新]最终代码(使用触摸是因为我无法分配内容并仅使用echo、cat EOF或T 恤创建新文件(
#!/bin/bash
#A Xorg/Gnome oriented bash script that creates a virtual resolution of 4k scaled to 2k in order to simulate a 'retina' display for 2k displays
#Creates the needed files: resolution_fix.sh and fix_resolution.desktop
touch $HOME/resolution_fix.sh $HOME/.config/autostart/fix_resolution.desktop
DISPLAY=$(xrandr --verbose 2>/dev/null | grep connected | grep -v disconnected | cut -d' ' -f1)
cat <<EOF > $HOME/resolution_fix.sh
#2x UI(User Interface) scaling
gsettings set org.gnome.desktop.interface scaling-factor 2
gsettings set org.gnome.settings-daemon.plugins.xsettings overrides "[{'Gdk/WindowScalingFactor', <2>}]"
#Virtual resolution of 4k scaled to 2k.
xrandr --output $DISPLAY --panning 3840x2160 --scale 1.5x1.5
EOF
# Gives execute permission to all users
chmod +x $HOME/resolution_fix.sh
# Creates an autostart script for the resolution adjustment
cat <<EOF > $HOME/.config/autostart/fix_resolution.desktop
[Desktop Entry]
Name=ResolutionFix
Comment=Retina resolution for 2k display
Exec=$HOME/resolution_fix.sh
Terminal=false
Type=Application
X-GNOME-Autostart-enabled=true
EOF
谢谢！
xrandr --verbose|grep connected|grep -v disconnected|cut -d' ' -f1
用空格分隔时，它实际上是 1 个单词。
警告：您可能有多个显示器。
或者没有。可能需要重定向或检测"无法打开显示器"。
慢慢构建这个，"连接"可能是一个子字符串。
分配它：
DISP=$(xrandr --verbose 2>/dev/null | grep connected | grep -v disconnected | cut -d' ' -f1)