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Questions tagged [xrandr]

xrandr 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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xrandr with second window above, maximising problem

I have a laptop running arch linux with all the latest updates. The laptop has a displayport output. This is connected using a displayport to HDMI cable to the HDMI port on a Samsung HD tv. Display ...
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1answer
25 views

Resolution and scaling issues on dual monitor with nvidia (one 4k HiDPI, one VGA with converter)

I am trying Kubuntu 18.10 and I have a nvidia GTX 1060 (driver 418), a LG 27" 4k monitor (27UD58-B ) and an older HP 22" 1680x1050 monitor (HPw2207) with a VGA cord and a VGA-> DP converter. My ...
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8 views

How to xrandr 4k with Intel 3000 HD Sandybridge?

Running the command below, I expect the external monitor resolution to be changed to 4K. Although xrandr states my desired mode as active, it remains 1366x768: xrandr --output DP2 --mode 3840x2160 --...
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23 views

Custom modeline calculation -> monitor “artefact”

I am trying to get a custom resolution to run on my 4k, 60Hz TV. I am mostly working on a Thinkpad that only supports 4k@30Hz via Display Port. I would much rather work on a lower resolution with a ...
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43 views

Connecting a second monitor via DisplayLink on Debian

Problem: I am unable to connect my second monitor. Background: I freshly installed DebianStretch on my desktop computer. Before this, I was running Windows 10 on my host and Debian in a virtual ...
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47 views

Rotation script for xorg tablet (x230t in my case) with pen(digitizer), touch and eraser. Any optimizations?

Maybe somebody have own optimizations to this code or sed expressions? It's my first post here, so I thought some people may use it and it's a best place to issue such little thing. Just bourne ...
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22 views

Excluding a Portion of a Monitor from the Desktop

My monitor supports configurable pictute-in-picture. I like to keep my Linux desktop connected to the main mDP input, with a second machine connected via HDMI shown as PIP in the bottom-right corner. ...
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21 views

brightness | xrandr | what does it mean - software only modification?

xrandr --brightness brightness - multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this ...
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63 views

Xrandr increase resolution black screen

When I try to increase the resolution in my virtual machine (Xen), running a debian distribution (Kali/Parrot in this case), I get a black screen. I use xrandr, because in the GUI, the max resolution ...
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58 views

Qubes-OS install Qubes support tools in HVM to fix screen resolution and copy paste

I want to install a fully virtualized machine (HVM) with Kali Linux in Qubes-OS. The installation itself was a bit bumpy but I managed to install it correctly. Now, the issue is that I want to ...
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11 views

Using xrandr output to re-configure screens exactly as described in the output

Often I need to disconnect my laptop from the external monitor and re-connect some time later. Each time I have to re-configure the other monitor, in particular tell that it shall be used and what the ...
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46 views

Ubuntu 18.10-xrandr now showing external output after I switched between Intel and Nvidia in Prime Profiles

Until today when I edited within Nvidia X Server Settings > PRIME Profiles > Intel Power Saving Mode (previously it was set to Nvidia) everything worked and my secondary display was recognized. Now ...
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71 views

Linux mint screen orientation error

I'm trying to change the orientation of my laptop screen in linux mint and then my mouse clicks are totally ignored, so I couldn't change the display back to normal (with the GUI). My screen also ...
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106 views

Monitor (sometimes) not detected when plugged in any DisplayPort

Problem Formulation: Dual-Monitor setup currently not possible because monitor not detected when plugged in any DP. Symptoms: If monitor A is connected to HDMI and monitor B to any DP slot, only ...
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1answer
23 views

Switch screens on Slax Linux (xrandr, FluxBox)

I use Slax Linux as a Live Linux on a USB drive and I have a problem with multiple monitor configuration. My computer has two screens, this is the output of xrandr: Screen 0: minimum 320 x 200, ...
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173 views

xrandr “can't open display” when changing native laptop screen resolution

I am able to adjust the settings of any external monitors I connect with xrandr with no issues. But, my main laptop screen will go black upon changing any settings with xrandr. Upon booting into ...
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183 views

xrandr: Configure crtc failed

I'm trying to make my Linux machine work with a 4k monitor. There's no 4k option in listed resolutions, so I tried to add it myself and here's what I got: $ cvt -r 3840 2160 60 # 3840x2160 59.97 ...
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36 views

Making external display DPI settings permanent

System: Linux Mint 19.1 Cinnamon. Hardware: Laptop screen: 3840x2160 + HDMI screen 1920x1080. I have enabled Double DPI in General settings. It works fine for the laptop display, but now I connected ...
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57 views

Gnome shell crashes when login in to a standby session when the screens are connected

I'm using two external screens with two mini display ports with Debian 9.8 on Wayland with Gnome. Use case is I let the computer to go to sleep (stand by) then connect again to screens and tries to ...
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1answer
41 views

Can't Run xvfb @ 16:9 on MATROX MGA-G200

Capturing server screen configured as follow, the screen capture occurs but the ratio captured is not 16:9, is that due to video card ? Did : cvt 1920 1080 60 xrandr --newmode "1920x1080_60.00" ...
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1answer
43 views

Uniquely identify DP monitors for use in xrandr

I have 2 monitors plugged in via DisplayPort*, named DP1 and DP2. I configure them next to each other like this: xrandr --output DP1 --pos 0x0 --output DP2 --pos 3840x0 Problem: Sometimes, they are ...
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31 views

xrandr (1.5.0) artifacting in i3wm (4.16.1) after upgrading Arch Linux

Bit of an unusual issue. I just updated Arch Linux, but I hadn't rebooted in a quite awhile so it might not have even been a recent updgrade. I'm getting some weird artifacting at the bottom of my ...
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33 views

Send to USB attached touch screen monitor with xrandr

I have a project which involves buying a 5'' inch USB Touch Screen (from Raspberry Pi) to create an "info" screen: to control brightness, volume, current music, open shortcuts, etc... I have the ...
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1answer
365 views

Second monitor not recognized - need help with xorg.conf file

I'm trying to use this monitor Acer XB270H, with my Ubuntu laptop, but it is not recognized, appears cropped with incorrect resolution. Note: I first was using the docking station with the monitor DP ...
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1answer
119 views

Two touchscreen for Ubuntu and mapping of touch events

i've a touchscreen laptop (1920x1080) and a ineractive whiteboard with touch (1280x800). To use the full resolution of the laptop i just present a part of the monitor, that is done succesfully with ...
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97 views

How to turn off specific display on command line with wayland

Previously I used a linux system which didn't use Wayland and I was able to control my displays through the xrandr program. So to turn off my third display I used this command: $ xrandr --output DP-1 ...
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203 views

How to use xrandr in order to set multiple monitors scaling correctly

I have Laptop 15" + Monitor 23" and I have no clue on how to fix the scaling. I know I should use xrandr. $ xrandr Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192 eDP-1 ...
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59 views

Running xrandr from systemd

I have ~/.config/systemd/user/resume@.service: [Unit] Description=User resume actions After=suspend.target [Service] ExecStart=xrandr --output eDP1 --auto [Install] WantedBy=suspend.target Now ...
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48 views

Display freezes when HDMI is not connected

I have an Acer Aspire E 15 on which I installed Archlinux with XFCE as my DE. However, I find that the laptop's display completely freezes as soon as I disconnect the HDMI cable to my external monitor....
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1answer
4k views

HDMI port not detected in Ubuntu 18.04

I have recently bought an hp Zbook 15 G5 where I have installed an Ubuntu 18.04 partition. I want to connect it to a monitor, but if does not work. The HDMI port is not detected at all. This is the ...
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313 views

Using Displayport over USB-C (Thunderbolt 3) to drive external 5120x2160 monitor; resolution not detected, cvt mode not working

I bought a new LG 34WK95U ultra-wide screen, which has a native resolution of 5120x2160 at 60Hz. When connecting the monitor via a Thunderbolt 3 USB-C connection, it gets picked up, but it fails to ...
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1answer
174 views

Linux cannot detect 2560x1440 144z capability of Vega 64 [duplicate]

Using KDE Neon, a Vega 64, and a Pixio px277h, I have tried to manually make xrandr use the setting for 144hz because it does not seem to detect this properly. The monitor has 144hz capability, the ...
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2answers
992 views

xrandr fails randomly with “Configure crtc X failed” on dock with multiple monitors

TL;DR: xrandr fails randomly on my system with the error message xrandr: Configure crtc X failed on my setup with two monitors, that are connected to a dockingstation. After I turn on and off single ...
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0answers
25 views

“circular” Screen setup Xrandr

I'm installing a new setup with 2 screens plugged onto a laptop (primary). One on the left, one on the right. Right now Xrandr looks like this : eDP-1 connected primary 1366x768+1050+0 (normal ...
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1answer
153 views

How do I detect when a monitor is plugged in or unplugged without acpi, xrandr, /sys and udev?

I've read the answers to this question but I don't have ACPI, the /sys/class/drm/card0-socket/status method does not work and the xrandr method chokes my CPU. udevadm monitor shows nothing when (un)...
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0answers
71 views

Changing resolution on touchscreen

My screen resolution is supposed to be 1366x768 according to the screen documentation. In viewing the display, it goes "off the screen" so I am guessing the resolution is simply set incorrectly. Here ...
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1answer
135 views

Get to work 2 monitors in debian9 xrandr error

I am trying to get to work my two monitor in debian9. I try several things and nothing get to work. I have a new computer with two output, one VGA and the other HDMI. Both have a monitor conected and ...
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1answer
841 views

Prevent xrandr scaling from becoming blurry

I am attempting to connect a laptop with a LVDS1 resolution of 1366x768 to a HDMI1 resolution of 1920x1080 (hardware that HDMI1 is connected to is a 4k Samsung TV). I am trying to clone my laptops ...
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180 views

Move screen to the left with `xrandr`

I am using a smaller resolution than my laptop monitor, so that I get black bars on both sides (left and right). Is it possible--with xrandr--to align the screen to the left, so that instead of 2 ...
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0answers
53 views

Dual monitor with nvidia drivers on Lubuntu

After I installed vendor Nvidia drivers, I managed to setup external monitor as I want via /etc/X11/xorg.conf configuration file: Section "ServerLayout" Identifier "Layout0" Screen 0 ...
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1answer
31 views

Xrnadr not see any external ports

I have a problem with connecting external monitor to my Dell Precision M6500 laptop. I'm running Debian Stretch with gdm3. I try to connect external monitor by VGA. My laptop has DP and VGA port. ...
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1answer
433 views

Calibrating a touch-screen on dual monitors (one touch one not)

I am using Debian 9. I have a little PC with 2 in-built monitors that I intend to use as a point of sale. It has one monitor facing the customer (non-touch screen) and one facing the cashier (touch ...
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1answer
321 views

Xrandr problem trying to avoid broken display

Days ago I broke my laptop display by accident, the right side of the screen is damage but the most part of the left side is usable. I do some research trying to find a way to modify the dimension of ...
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1answer
55 views

MINT 19 incorrectly recognizes the model of my monitor

I am trying to connect the monitor to my laptop by HDMI. My MINT 19 recognizes my SAMSUNG 27" monitor as 'Samsung Eletric Company 7" ' How I can change the wrong type of my monitors and change its ...
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0answers
113 views

Why does xdpyinfo and xrandr give different measurements?

I'm trying to calculate the size of my 2 screens together. Using xdpyinfo, I see the following: xdpyinfo | grep 'dimensions:' dimensions: 5120x1600 pixels (1355x423 millimeters) However, ...
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1answer
34 views

Showing lines that don't have pattern

I am trying to get the monitor name of my secondary monitors using xrandr -q. I am able to get the primary using xrandr -q | awk '/primary/{print $1}', but I also want to get the secondary monitors. I ...
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0answers
83 views

xrandr not detecting old monitor

Xrandr, nor any other program, is detecting my second monitor; as in, xrandr acts like the second monitor doesn't even exist when it's connected. I think it could be due to the fact that both the ...
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1answer
101 views

Is it possible to drive more than one monitor off a single CRTC?

I have a video card with six mini display port outputs, and was hoping to use MST splitters to get Xorg to extend my desktop across more monitors than outputs on the card. However, when using xrandr ...
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1answer
385 views

xrandr commands from gdm

on debian to use my two monitors I have to run (from a running X): $ xrandr --setprovideroutputsource modesetting NVIDIA-0 and: $ xrandr --output HDMI-0 --mode 1920x1080 --primary --pos 0x0 --...
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1answer
157 views

Application dpi change on runtime - Xserver

I try to handle problems with Linux X-Server with mixed dpi displays. At the office I would like to use two non HDPI displays, else I like to use the HDPI screen of my XPS13. The best results on the ...