# RandR extension
xrandr --output VGA1 --off
xrandr --orientation normal
xrandr -o normal
xrandr --output LVDS --auto --rotate normal --pos 0x0 --output VGA --auto --rotate left --right-of LVDS
xrandr | grep connected
xrandr --output eDP1 --brightness 0.95
xrandr --output eDP1 --brightness 0.5
xrandr --output eDP1 --brightness 0.25
xrandr --output eDP1 --brightness 0.15
xrandr --output HDMI-0 --set underscan on
xrandr --output HDMI-0 --mode 1220x686 --set underscan on --set "underscan hborder" 30 --set "underscan vborder" 16
xrandr --output eDP1 --mode 1366x768 --panning 1920x1080 --scale 1366x768 --scale-from 1920x1080
xrandr --newmode "1776x1000" 147.05 1776 1880 2072 2368 1000 1001 1004 1035 +hsync
xrandr --addmode HDMI1 "1776x1000"
xrandr --output HDMI1 --mode 1776x1000 --panning 1776x1000 --primary \
--output eDP1 --mode 1366x768 --panning 1776x1000
xrandr --verbose
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x42
Timestamp: 2055750
Subpixel: unknown
Clones: HDMI1
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
DP2 connected primary 1920x1080+0+0 (0x48) normal (normal left inverted right x axis y axis) 509mm x 286mm
Identifier: 0x43
Timestamp: 2055750
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff000469fa2335250000
12160104a5331d7822d945a2554da027
125054b7ef00714f814081809500b300
d1c081c08100023a801871382d40582c
4500fd1e1100001e000000ff0043354c
4d54463030393532350a000000fd0032
4b185311000a202020202020000000fc
00415355532056533233380a20200036
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
1920x1080 (0x48) 148.500MHz +HSync +VSync *current +preferred
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
1680x1050 (0x49) 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
1280x1024 (0x4a) 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 (0x4b) 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
1440x900 (0x4c) 106.500MHz -HSync +VSync
h: width 1440 start 1520 end 1672 total 1904 skew 0 clock 55.93KHz
v: height 900 start 903 end 909 total 934 clock 59.89Hz
1280x960 (0x4d) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1280x800 (0x4e) 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
1152x864 (0x4f) 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
1280x720 (0x50) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1024x768 (0x51) 78.800MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
v: height 768 start 769 end 772 total 800 clock 75.08Hz
1024x768 (0x52) 75.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
v: height 768 start 771 end 777 total 806 clock 70.07Hz
1024x768 (0x53) 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
832x624 (0x54) 57.284MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
v: height 624 start 625 end 628 total 667 clock 74.55Hz
800x600 (0x55) 50.000MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
v: height 600 start 637 end 643 total 666 clock 72.19Hz
800x600 (0x56) 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 (0x57) 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
800x600 (0x58) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
640x480 (0x59) 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 (0x5a) 30.240MHz -HSync -VSync
h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
v: height 480 start 483 end 486 total 525 clock 66.67Hz
640x480 (0x5b) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
720x400 (0x5c) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
HDMI1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x44
Timestamp: 2055750
Subpixel: unknown
Clones: DP1
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
HDMI2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x45
Timestamp: 2055750
Subpixel: unknown
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x46
Timestamp: 2055750
Subpixel: no subpixels
Clones:
CRTCs: 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
...
xrandr [-help] [-display display] [-q] [-v] [--verbose] [--dryrun] [--screen snum] [--q1] [--q12] [--current] [--noprimary] [--panning widthxheight[+x+y[/track_widthxtrack_height+track_x+track_y[/border_left/border_top/border_right/border_bottom]]]] [--scale xxy] [--scale-from wxh] [--transform a,b,c,d,e,f,g,h,i] [--primary] [--prop] [--fb widthxheight] [--fbmm widthxheight] [--dpi dpi] [--newmode name mode] [--rmmode name] [--addmode output name] [--delmode output name] [--output output] [--auto] [--mode mode] [--preferred] [--pos xxy] [--rate rate] [--reflect reflection] [--rotate orientation] [--left-of output] [--right-of output] [--above output] [--below output] [--same-as output] [--set property value] [--off] [--crtc crtc] [--gamma red:green:blue] [--brightness brightness] [-o orientation] [-s size] [-r rate] [-x] [-y]
...
xrandr --output HDMI1 --mode 1920x1080 --panning 1920x1080 --primary --output eDP1 --mode 1366x768 --panning 1920x1080
xrandr --output HDMI1 --transform 1.0735,0,-72,0,1.075,-41,0,0,1
xrandr --output HDMI1 --brightness 1.05 --gamma 0.95:0.95:0.95
xset -dpms s noblank s noexpose
# xrandr.verbose.parse;{
connected: /^(\S+) connected (?:(\d+)x(\d+)\+(\d+)\+(\d))*\s*(\(\w+\))*\s*(\w*)/,
disconnected: /^(\S+) disconnected/,
mode: /^\s+(\d+)x([0-9i]+)\s+(\(\w+\))\s+([0-9]+\.[0-9]+)MHz\s+((\s*[\+]*[\-]*\w*\s)*)/,
dimension_horizontal: /^\s+h\:\s+width\s+(\d+)\s+start\s+(\d+)\s+end\s+(\d+)\s+total\s+(\d+)\s*skew\s*(\w)\s*clock\s*([0-9]*.[0-9]*)/,
dimension_vertical: /^\s+v\:\s+height\s+(\d+)\s+start\s+(\d+)\s+end\s+(\d+)\s+total\s+(\d+)\s*clock\s*([0-9]*.[0-9]*)/
}
const exec = require('child_process').exec;
exec('xrandr --verbose', (err, stdout) => {
console.log(`query:: ${JSON.stringify(parse(stdout), null, 2)}`);
});