I am using a second smaller screen (Dell) with my laptop (acer Aspire 15.6"). The resolution of my laptop is (1366 x 768) but the resolution of the second screen is ( 1024 x 768 ).

Question: How can i have the same resolution on both the screens i.e. (1366 x 768).

PS: I ran the command xrandr and got the following output

Screen 0: minimum 320 x 200, current 2390 x 768, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 345mm x 194mm
   1366x768       60.0*+
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 connected 1024x768+1366+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0* 
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
  • You can't! If the second screen only has 1024 pixels across, how can you squish the 1366 pixels in? Or do you wish to crop or distort it? – Sparhawk Oct 25 '14 at 12:08
  • @Sparhawk: Thanks for your comment. Actually when i transfer a window from my laptop screen to the smaller screen, then that window appears larger. The only thing i want is that the window should appear in the same size in both the screens. – skm Oct 25 '14 at 12:18

You can do this, but the second screen will appear a little fuzzy as the pixels will be interpolated. You will be telling xrandr to create a scaling factor for the second screen, so that the desired resolution is squished onto the display.

In a terminal, enter the following command

xrandr --output VGA1 --mode 1024x768 --scale 1.334x1 --panning 1366x768

  • Thanks for your reply. The above brought the desired results somehow but there are several other problems. Now, i am getting the same thing in both the screens but i want to use the second screen as an Extra space. Could you please tell me how can i revert back to my previous configuration? – skm Oct 25 '14 at 13:25
  • You could revert the configuration by entering xrandr --output VGA1 --mode 1024x768 --scale 1x1 --panning 1024x768 – Charles Green Oct 25 '14 at 13:36
  • i already tried it. I am able to get the previous resolution but i am still getting the same things on both the screens which i don't want. – skm Oct 25 '14 at 13:38
  • In settings->displays, is your system set to mirror the two displays? – Charles Green Oct 25 '14 at 13:39
  • i checked that part...but it is correct. There i have not selected "mirror images". Moreover, if i select "mirror images" then the resolution of my laptop screen gets decreased so that it can represent the things which are present in smaller screen. But at the moment, my laptop screen is working at its full resolution. – skm Oct 25 '14 at 13:40

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