Official configuration utility for x.org.

learn more… | top users | synonyms

49
votes
9answers
118k views

How can I make xrandr customization permanent?

I used to edit the startup script for the GDM (/etc/gdm/Init/Default) to permanently change my display resolution. How can I do this with LigthDM in Ubuntu Oneiric?
32
votes
3answers
31k views

How to set the monitor to its native resolution which is not listed in the resolutions list?

After installing Ubuntu 10.04 with my Samsung SyncMaster B2030, native resolution (1600X900) is not found in the list of resolutions.
25
votes
2answers
71k views

How to set a custom resolution?

I tried to use xrandr to set 1680x1050 as a new mode to VGA output, but it says: sudo xrandr --addmode VGA-0 1680 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode ...
20
votes
3answers
6k views

How to disable global <Super>-p shortcut?

In ubuntu 11.04 there was a workaround using gconf-editor and setting key /apps/gnome_settings_daemon/plugins/xrandr/active to false. However there is no such key in gconf-manager using ubuntu 11.10 (...
17
votes
4answers
108k views

How to detect and configure an output with xrandr?

I have a DELL U2410 monitor connected to a Compaq 100B desktop equipped with an integrated AMD/ATI graphics card (AMD E-350). The installed O/S is Ubuntu 10.04 LTS. The computer is connected to the ...
15
votes
8answers
7k views

Mouse flickering on one of my two screens

I just installed ubuntu 14.04 and the mouse is now flickering on one of my two screens. The other screen doesn't have any flickering. I was previously using ubunutu 13.10 without any issue. If I ...
15
votes
3answers
6k views

How to set default xrandr settings?

I'm trying to enable dual monitors in Ubuntu. This is working fine, but every time I do it, desktop effects is disabled. I think I've found the reason why, though: https://wiki.ubuntu.com/X/Config/...
14
votes
4answers
48k views

How to force Multiple Monitors correct resolutions for LightDM?

I am affected by the BUG: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/874241 Otherwise, if like me you have a laptop connected to a second monitor of higher resolution, LIGHTDM at the ...
13
votes
2answers
17k views

Rotate only one screen

If I have only the internal monitor (LVDS1) with an xrandr -o left command. Now I want to attach a second monitor, say to HDMI1. Then I'd like to rotate only the internal monitor, but not the external ...
13
votes
2answers
23k views

Xconfig xrandr badmatch

Recently I minimal installed my OS, but got an unexpected error while setting my monitor resolution. it seems like a very old problem, but this time there are something else(I think). to install the ...
12
votes
1answer
17k views

Why don't my lightdm.conf edits affect my desktop screen resolution?

I wanted to change my desktop screen resolution to 1366x768. But my VESA drivers(AMD REDWOOD) did not detect that resolution. So I created a shell script as follows:- xrandr --newmode "1368x768_60.00"...
10
votes
5answers
43k views

Set a specific screen resolution with xrandr

So I installed LUbuntu 11.04 on my VirtualBox. I couldn't find the 1366x768 resolution so I installed Guest Additions but it wasn't there. So I used this code to set the correct resolution: gtf 1366 ...
10
votes
7answers
3k views

Ubuntu Desktop shifted to right

I am using Ubuntu 12.04 (precise) Kernel : 3.5.0-18-generic I am encountering a strange problem, my whole desktop has shifted to right. This happened after I restored my system, I was getting a blank ...
9
votes
2answers
2k views

Want to disable built-in screen by default

Some background: My old, well-loved laptop has kicked the bucket. The normally well-backlit screen is entirely, illegibly darkened. It seems to my inexpert inspection to be a hardware problem well ...
9
votes
2answers
2k views

How can I have xfce automatically adjust to changing available outputs?

In xfce, I can run Settings -> Display to change my preferred output monitor. What I haven't found an option for is to have it automatically adjust to a change in available outputs. For example, if I'...
9
votes
1answer
498 views

Why do xrandr errors “BadMatch”, “BadName”, “Gamma Failed” happen?

I have not found a single solution to such errors, despite the rather large number of users out there who have them. So I want to try to find a solution myself. However, I have no idea why they occur....
8
votes
2answers
2k views

How can I determine X resolution from CLI without randr?

Does anyone know of a way to determine the current X resolution from the command line, without using randr?
8
votes
1answer
14k views

xrandr as root cannot find displays

I have the following rule call my script when I dock or un-dock my ThinkPad: # /lib/udev/rules.d/81-thinkpad-dock.rules KERNEL=="dock.0", ATTR{docked}=="0", RUN+="/usr/bin/think-dock-hook off" KERNEL=...
8
votes
1answer
363 views

Setting different subpixel rendering on different monitors

I am using dual monitors, one of them rotated by 90 degrees. Font antialising does not look right in the rotated monitor (i.e., there are rainbow borders around characters). I believe this is ...
8
votes
1answer
731 views

How to enable overscan compensation in the i915 driver?

Does the i915 driver support "overscan compensation"? If so, how can I enable it? EDIT: Or is there any other driver for Intel's HD4000 graphic that supports "overscan compensation"?
7
votes
2answers
23k views

“xrandr: Configure crtc 0 failed” when trying to change resolution on external monitor

I've been trying to set up an external monitor for a bit, finally got it mostly working except the resolution is off. My monitor's native res is 1600x900, which I finally got to show up in xrandr: ...
7
votes
2answers
4k views

How to adjust contrast with xcalib

I'm trying to adjust contrast on my laptop, a ThinkPad E430, running ubuntu 12.04: xcalib -co 70 -a xrandr --output LVDS1 --brightness 0.7 Either of them works only for 1-2 seconds and after that ...
6
votes
6answers
17k views

Second Screen is Rotated in a dual monitor setup

I have a laptop connected to a second monitor using a vga port. No proprietary drivers used. When I go to System Preferences --> Monitor and I turn that on it doesn't look as it should, and it's ...
6
votes
4answers
17k views

Any really decent way to get three monitors?

What satisfactory solutions are there to achieve three monitors on Ubuntu? I know some ATI cards (Eyefinity) can support 3 monitors from a single card, but I don't know how well this is supported ...
6
votes
5answers
44k views

Failed to get size of gamma for output default when trying to add new screen resolution

I'm trying to adjust resolution on my new MSI GT70 2OC. In settings, only one resolution is available: 1920x1080. This is fine, except that I need to decrease the resolution and make it more ...
6
votes
3answers
19k views

Can I force VGA signal output even when xrandr shows 'disconnected'?

My notebook is connected to a HDTV through a KVM Switch (one other notebook also connected to the same HDTV). The problem seems to be that Ubuntu doesn't recognize the HDTV to be turned on and ...
6
votes
1answer
281 views

Doom-II-like red flashing screen

I want my screen to flash red so that it looks similar to getting hit by a rocket in Doom II, preferably using cli tools. I've seen that redshift does something similar just way too slow so I tried ...
6
votes
0answers
2k views

Ubuntu not detecting the external display anymore [closed]

I just installed some updates and restarted and after this then Ubuntu doesn't detect the external display. It's connected with HDMI. What can I do about it? It doesn't appear in display settings. I ...
5
votes
2answers
3k views

What does grep do?

Here is the description of grep from GNU.org: grep searches input files for lines containing a match to a given pattern list. When it finds a match in a line, it copies the line to standard output ...
5
votes
2answers
10k views

Can I zoom out windows or scale the whole desktop?

I have a 17" laptop with 1600x900 resolution, but it's not enough to open windows side by side. I'm wondering if i could zoom out (or any other solution) windows (or the whole desktop). Is there a ...
5
votes
1answer
868 views

Run script when monitor is connected

I am trying to run a script located in usr/local/bin/ when I connect an external monitor to my laptop. I have tried to add a new udev rule but that did not work. I created a new file in /etc/udev/...
5
votes
4answers
2k views

What might prevent mouse movements between xrandr screens? [closed]

I've followed the steps outlined in this HowTo. Right after I log in to Gnome I can move the mouse back and forth but as soon as the task bar loads, the mouse becomes jailed in the screen its in (can'...
5
votes
1answer
2k views

Virtual screen larger than 4096x4096 using xrandr

I have a triple monitor setup with a 1920x1200 monitor in the middle and two rotated 1600x1200s on the sides, for a total requirement of 4320x1600. I recently installed xubuntu and I'm trying to use ...
5
votes
1answer
401 views

Add asymmetrical margin on LCD display?

My old laptop display is starting to break, and I have many dead pixels and other physical issues on the left side of the screen only. Of course I should get a new monitor (or ideally a new laptop), ...
5
votes
0answers
2k views

External display suddenly not detected

I have a Lenovo IdeaPad U410 running Ubuntu Desktop 13.04. I have an external monitor that I connect to via HDMI, and it's worked flawlessly for six months. I plug in my laptop, it detects the ...
5
votes
1answer
3k views

XFCE Display Setup

I have recently installed Ubuntu 12.10 on another PC, and decided to install XFCE (by installing xubuntu-desktop) Everything works great, except XFCE refuses to store my screen resolution and setup. ...
5
votes
1answer
908 views

xrandr ignores setting DPI (Zenbook running 12.10)

I recently got a Zenbook Prime and installed ubuntu. Following The tips at https://help.ubuntu.com/community/AsusZenbook worked out pretty well. Only one problem remains: I can not set the DPI. I ...
5
votes
0answers
2k views

Laptop monitor stopped working and can't be re-enabled on a Dell Latitude E6410 [closed]

I'm using Ubuntu 12.04 (upgraded from 11.10), everything seemed to work fine until today when my laptop monitor suddenly stopped working. Here are the facts: My laptop is a Dell Latitude E6410, Intel ...
4
votes
3answers
6k views

How to Kill specific x-window?

I run some WIndows games via Wine in new x-window on tt8. Here is what I use Exec=xinit '/home/deckoff/.PlayOnLinux/wineprefix/HOMM3/drive_c/Program Files/GOG.com/Heroes of Might and Magic 3 ...
4
votes
2answers
4k views

Maximize windows to physical screen when using a virtual resolution w/xrandr

I have a netbook with a small screen in widescreen format (1024x600), which means that a lot of programs whose designers didn't imagine such a thing open windows that can't be resized and whose ...
4
votes
1answer
764 views

Xrandr message: Rate 144.0 Hz not available for this size

When I type xrandr and press enter, the output I get says that I have 144.0 hz available to use on my 1920x1080 resolution, but when I try "xrandr -s 1920x1080 -r 144.0" or 144 without .0 I get the "...
4
votes
1answer
15k views

How to set resolutions with xrandr using multiple monitors

I want to set specific resolutions to 2 monitors. How can I tell xrandr which monitor to change resolution.
4
votes
1answer
205 views

Cannot disable Display Port via grub boot options

When I run xrandr on the terminal I see DVI-0 connected and DisplayPort-1 connected. I only use DVI-0 as my output. I don't have two screens, or anything else connected to my computer, so I don't know ...
4
votes
1answer
215 views

External monitor turns off for several seconds every 5-10 minutes

I've got the following issues with my Ubuntu 16.04 installed on Lenovo ThinkPad T500 laptop with two external monitors connected via display and VGA ports. I think the issue started after I've ...
4
votes
2answers
30k views

How to change the screen resolution in VNC viewer for Ubuntu 12.04 without a monitor?

I have Ubuntu 12.04 installed on a machine and I always use it remotely from VNC. When I have monitor connected to this machine, I can change the resolution of my VNC viewer in the following line: $...
4
votes
1answer
4k views

How can I configure my system to use Twinview correctly?

Story: I have a HP dv7 1020us with a Nvidia GeForce 9600M GT. My internal monitor is broken, so essentially I cant' use it, as I can hardly see anything through it. Recently, I upgraded to Ubuntu ...
4
votes
1answer
6k views

xrandr not listing modes in xorg.conf

On my Lenovo w520, xorg/xrandr (with intel driver) detects the native resolution of my LCD panel, but doesn't seem to detect any 16:9 intermediate resolutions: Screen 0: minimum 320 x 200, current ...
4
votes
2answers
533 views

Some dialog boxes are bigger than screen/display

I have an embedded board with Ubuntu 12.04 LTS GNOME 3.4.1. With this board I am using LCD display 800x480 and HID resistive touchscreen. Everything works fine but I have a problem with some dialog ...
4
votes
1answer
2k views

Can't select 2560x1440 resolution even though I know it's possible (I have proof!)

I have a new monitor, (the Dell U2515H) which I'm trying to drive at 2560x1440 resolution (just 30hz) over HDMI using only the onboard graphics on my machine (Intel HD4000 found in the ivy bridge CPU)....
4
votes
3answers
3k views

How do I change the backlight brightness on an iMac 12,2? [closed]

Problem: I can't adjust the brightness of my iMac and it's killing me. (My eyes! The goggles do nothing!). Has anyone gotten this to work? -Booting with rEFIt 0.14 -Product Name: iMac12,2 -Kernel:...