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Questions tagged [randr]

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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Screen upside down after upgrade to 18.04.01

after upgrading to 18.04 my screen suddendly switched upside down, since my Laptop apparently has a rotation sensor. I temporarily fixed it with xrandr -o normal and disabled the gnome rotation sensor,...
2
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1answer
287 views

How to change default screen layout on Lubuntu?

I tried to save my arandr settings to a ~/.screenlayout/default.sh path, but that doesn't work.
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1answer
115 views

How to transform/distort screen?

I have a projector, which doesn't come with horizontal keystone correction builtin, only vertical correction. I've seen that it is possible to do it with xrandr, using the --transform parameter, but ...
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0answers
489 views

xrandr: randr is missing after installing xorg

I am attempting to run xrandr because online it says you need xrandr to run lwjgl. However, whenever I try running xrandr it gives me the following error: RandR extension missing I tried running the ...
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1answer
48 views

Trigger a program when X wakes up

I want to perform a task when my computer awakens from suspend, and the task involves xcb-randr. I've tried putting a script into /lib/systemd/system-sleep, but randr isn't available at the time that ...
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0answers
1k views

Xlib: extension “RANDR” missing on display “:10”

I'm connecting with a server. On server I installed XFCE GUI. I'm using xrdp for connection. As I understood problem is setting of display. display setting is made by connection (xrdp), gui (xfce), ...
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1answer
891 views

VNC Desktop for 16.04 with adjustable geometry fail

I have tried several online solutions, no go. 1) Unity or Gnome attempts give only grey screen 2) xfce4 works but randr extension is not present (it is present & working for Unity) tightvnc ...
3
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1answer
435 views

How to make KDE use a screen from xrandr 1.5?

I am trying to set up a 5k monitor with Ubuntu. It has two DisplayPort inputs because the bandwidth is too large for one cable. xrandr 1.5.0 comes with support for multiple monitors and tiling output. ...
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2answers
5k views

Ubuntu 16.04 Xfce unable to start display setting

Within the screen, going to APPLICATIONS -> SETTING then DISPLAY the response is Unable to Start the Xfce display settings This system is using RandR 1.1. For the display settings to work version 1.2 ...
7
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1answer
16k views

How do I start chromium-browser in headless mode? extension “RANDR” missing on display “:99”

Ubuntu $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.4 LTS Release: 14.04 Codename: trusty Chromium chromium-browser --version Chromium 48....
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1answer
139 views

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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1answer
614 views

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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1answer
819 views

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?
3
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2answers
388 views

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 ...
8
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1answer
21k views

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 doesn'...
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2answers
17k views

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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1answer
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
6k views

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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0answers
1k views

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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1answer
730 views

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, ...
7
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1answer
4k views

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 ...