xrandr tips    Posted:


adding resolution 1)generate mode cvt 2560 1440 60 ➜ blog git:(website) ✗ cvt 2560 1440 60 # 2560x1440 59.96 Hz (CVT 3.69M9) hsync: 89.52 kHz; pclk: 312.25 MHz Modeline "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync

2)add it to xrandr sudo xrandr --newmode "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync setting resolution

3)sudo xrandr --addmode VGA-0 "1680x1050_60.00"

xrandr -q xrandr --verbose

xrandr --output HDMI-0 --mode 2560x1440

irst generate a "modeline" by using cvt Syntax is: cvt width height refreshrate

cvt 1680 1050 60 this gives you:

# 1680x1050 59.95 Hz (CVT 1.76MA) hsync: 65.29 kHz; pclk: 146.25 MHz Modeline "1680x1050_60.00" 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync Now tell this to xrandr:

sudo xrandr --newmode "1680x1050_60.00" 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -

First clone the two screens, (the smaller screen will display the top left portion of the virtual screen)

xrandr --output VGA --auto --right-of LVDS

System Message: WARNING/2 (<string>, line 34)

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xrandr --output LVDS --mode 1280x800

xrandr --output LVDS --mode 1280x800 --rate 75

xrandr --output LVDS --auto xrandr --output LVDS --off --output HDMI-0 --auto

xrandr --output VGA1 --mode 1024x768 --rate 60

#Laptop right extra Monitor Left #xrandr --output VGA1 --left-of LVDS1

#Laptop left extra Monitor right xrandr --output LVDS1 --left-of VGA1

#This is to set your primary monitor.

#This sets your laptop monitor as your primary monitor. xrandr --output LVDS1 --primary

#This sets your VGA monitor as your primary monitor. #xrandr --output VGA1 --primary

xrandr --output VGA1 --mode 1024x768 --rate 60 xrandr --pos <x>x<y> $ xrandr --left-of <output> $ xrandr --right-of <output> $ xrandr --above <output> $ xrandr --below <output>

Option '-pos' is more flexible which can place output to anywhere, for example:

$ xrandr --output VGA1 --pos 200x200 $ xrandr --output LVDS1 --pos 400x500

xrandr -o right

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