It is a X Window System extension, which allows clients to dynamically change X screens, so as to resize, rotate and reflect the root window of a screen.

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Questions regarding xrandr

I'm interested in looking into the xrandr source code. I googled xrandr source code, and found this code from Apple's opensource site. Is that all of it? I don't think so, because one comment says: ...
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Do I need to force xorg.conf usage?

My setup doesn't use xorg.conf by default; however I intend to create it in order to use RandR effectively... Do I need to to force usage of xorg.conf or will Ubuntu detect and use it automatically?
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Force xrandr 1.4 usage?

I force enabled xrandr 1.2 with xrandr --q12. How can I force xrandr to version 1.4? I've looked in man for information on doing so, but there isn't anything - xrandr --q14 doesn't work. Any ideas?
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How do I put my laptop as main screen with arandr?

I'm using 64 bit Lubuntu 15.04, I inserted my monitor, opened arandr, activated the monitor and positioned it as shown below. Now the problem I'm having is that my monitor seems to be considered the ...
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How to use Xvfb in Ubuntu 14.04 with/without RandR?

I try to run Unit-Tests with Selenium running Firefox on my Ubuntu 14.04 Server. And I'm using Xvfb as described in this blog to simulate a virtual display to show Firefox in. But Xvfg somehow ...
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3answers
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How Do I Get Rid of “Broken NVIDIA RandR detected, falling back to RandR 1.0”?

My short question is: How do I get rid of the RandR error below, while still using a proprietaty nVidia driver package (e.g. 304) ? The gore follows. A fresh install of wine 1.5 (latest, from ...
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1k views

How to change the screen resolution of the virtual console on an external VGA?

I've found helpful solutions to randr problems on the regular GUI (Ctrl+Alt+F7) but this question is about resizing the virtual console, which doesn't have good google results. I've been using arandr ...
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3answers
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Wrong resolution for TV connected via HDMI (32LG3000)

I have a LG Electronics 32LG3000 TV. I can't select the right resolution for my TV connected via HDMI. I can select 1360x768 but not 1366x768. The quality on my TV is very bad. HDMI1 connected ...
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Can't set up dual monitors due to “RANDR extension is not present” error

I have my PC dual boot into Ubuntu currently, and I am having issues (I assume because I have 2 monitors). I had an older version of Ubuntu running fine with two monitors on this same computer, but ...
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Double screen doesn't work

i can't solve a problem with my screen configuration. I tryed in anher italian forum, but i haven't find a solution. In my configuration i have an nvidia geforce 480x. I'm trying to use 2 screen, ...
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Using the RandR-enabled nvidia 302.xx beta driver in 12.04 with a realtime kernel

How can I use the recent beta of the 302 version of the nvidia driver (which finally supports the RandR extension!) with a realtime kernel in Precise? This question contains information on enabling ...