Questions about multiple monitors (Including projectors), how to set them up, troubleshooting the configuration, etc.

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How to change default monitor

I have an Asus laptop with intergrated intel graphics and a nvidia GEFORCE GTX 760m. Im using the intergrated monitor aswell as a monitor hooked up with HDMI. They're both working fine i just can't ...
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14 views

Extending desktop to external monitor only uses part of the monitor

I have been trying to solve this for a few days but I can't figure it out. I have a Toshiba laptop with an AMD integrated processor. Things work fine except when an external monitor is plugged in. ...
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0answers
22 views

xdmx multimonitor setup

I'm trying to use my laptop's monitor to setup a multimonitor display with my desktop (both running ubuntu 14.04). Based on setup guides i've googled, I'm doing the following from my desktop: sudo ...
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0answers
11 views

Permanently Disable external Graphics Card (usb)

I've got this cooling pad with USB-hub, LAN-Port, Audio and a VGA-Port. It's all connected to the computer via USB. So I guess it's basically an external Graphics-Card for the VGA. Long: It didn't ...
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53 views

Ubuntu 14.04 Second Monitor Not Detected through DVI, but detected through VGA cable

I used to connect a 24" monitor to my laptop, equipped with GeForce410M, through HDMI cable. It sometimes had problems with detecting the monitor, but after a restart it managed to detect. Today the ...
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1answer
15 views

external monitor issue, when maximizing the screen opens on the laptop

i have a fujitsu siemens with ubuntu 14.04 on it, the external screen is a lg 32''. my problem is that when i use the external screen and try to maximize the player to turn on full screen mode, the ...
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1answer
91 views

How to fix multi-display after upgrade? (Ubuntu Gnome 14.04, Nvidia Optimus)

I did a dist-upgrade today and after rebooting it would not load any GUI (tried lightdm and gdm), just stuck at the blinking underscore cursor. I noticed the driver had changed to Nvidia 343 so I ...
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1answer
72 views

Dual monitor setup

I am having a lot of trouble getting Ubuntu to work with my monitor. It works fine on Windows, so I know it is not a cable or monitor issue. I have both a DisplayPort output and VGA, so I prefer to ...
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225 views

Multiple Monitor Support on nvidia prime gt620

I've got a "funny" issue. I've hooked my Zenbook UX32VD up to an Asus USB Dockingstation, and through that I've connected a 22" Dell monitor. The monitor works when I use the built-in Intel ...
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1answer
27 views

How to get different text scaling for different displays?

I have a laptop with a fairly high resolution on a small display (14"). My external monitor 27" has a lower resolution than the laptop display. I would like for the text to be similar size on both ...
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25 views

Laptop detecting VGA port which isn't there. How to disable it? Ubuntu 14.04

Is there a way to disable the VGA port permanently, for all users? My Dell Inspiron 15 (3135) laptop has no VGA port, but System Settings> Screen Display shows the built-in display and a second ...
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14 views

Extending Screen Makes Mouse Jumpy

When I extend my display(not when mirrored) my mouse pointer becomes very jumpy to the point that it is unusable without decreasing the mouse speed.
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30 views

How do I fix weird behaviour after swapping monitor locations in Unity using a Nvidia card?

When setting up a secondary monitor, something strange happens when I change the location of my secondary monitor to the other side (the left side) of my main monitor. When a window gets maximized on ...
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0answers
24 views

ATI Radeon HD 4670 - Dell dimension 5150 [closed]

i have a dell dimension 5150 running the latest ubuntu, i have just purchased a ATI Radeon HD 4670 graphics card off ebay. when i install it in the computer and connect the monitor i get 'No Signal' ...
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68 views

Unable to make double screen configuration work

I am having problems with my video setup. I have a laptop (ubuntu 14.4) with a Nvidia Geforce GT-420M and a screen with 1366x768 resolution and I often connect to it a 22'' full hd monitor. As long as ...
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0answers
20 views

Telling X to treat one screen as 2

I have a very large screen, which I'd like X to treat as 2 screens. That is, allow me to "maximize" a window to fill just one half, or to move a window to the other half. How can I do this?
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26 views

Setting a dual monitor headless X Server for VNC

I would like to run Linux headless over VNC. This is easy. However, I would like to use dual monitors. My goals: Support each monitor at its native resolution (2560x1920, 1600x1080) My VNC client ...
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0answers
36 views

External monitor works, but laptop shows purple screen

When I boot my laptop, I hear the login drum sound, but the screen remains on the purple startup screen with the ubuntu logo and the orange dots. If I plug in an external monitor, it works fine, but ...
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0answers
40 views

Ubuntu 14.04 DIsplay Problem

I'm running ubuntu 14.04 on a Thinkpad T530 machine with nvidia NVS 5400M graphics. When I boot to ubuntu, I always stuck at the dark purple screen with 'ubuntu' at the center and five red dots under ...
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33 views

Setting up external monitors manually

https://wiki.ubuntu.com/X/Config/HybridGraphics In this link, it explains how to deal with Hybrid Graphics (an issue with Ubuntu when one has an hybrid graphic card system, which on Windows for ...
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0answers
148 views

Dual monitor setup, why does NVidia 340 Prime only detect one monitor?

I'm using: Alienware M14xR2 laptop running Ubuntu 14.04 2 * DELL U2412M monitors attached via HDMI and Mini Display Port Optimus graphics (Intel + nVidia GeForce GT 650M) running with nvidea-340 and ...
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32 views

Ubuntu 14.04 installation went wrong: wrong monitor

I have recently installed the 14.04 version of Ubuntu on my laptop, which previously had the 12.04 version. Everything went fine and I was happy with the update. However, something went wrong: when ...
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38 views

Unknown resolution on ubuntu 14.04 after software update

i have been using ubuntu 14.04 since its launch without any problem whatsoever but since yesterday when i started my system, i was horrified to see my screen resolution changed to 1024x768 from ...
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0answers
48 views

Two monitor setup, icons / programs default to left screen all the time

I have dual monitor setup with my right monitor being my primary one. When I run a program or create an icon it always appears on the left monitor instead of the right one, even though the right ...
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0answers
41 views

How to use multiple Xscreen?

I have a setup with 2 different NVidia cards and 3 monitors. I was using Xinerama to unite them all under the same desktop, but some random crashes and lots of googling lead me to believe that ...
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19 views

Mouse is blinking/flickering at my built in monitor with an external monitor, please help

I am using a Thinkpad W530, and due to my works, I need to use an external monitor. I am using nouveau and nvidia-prime to switch between intel and nvidia adapter. After I connected and switched on ...
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34 views

Second Monitor (extended desktop) flicks after upgrade to 14.04 LTS Desktop

I always connect the BenQ 22" monitor to my Samsung RV511 laptop when using Ubuntu 13.10 Desktop version and its previous ones. The monitor is connected directly to my laptop's video port, and works ...
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27 views

evga uv plus usb to vga adapter does not display output

I have a evga uv plus usb to dvi adapter. I tried to connect this to an Acer Monitor. The Monitor is recogznized by Ubunu when its connected as seen here However, when I enable the display, and ...
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0answers
87 views

Secondary monitor issues with Nvidia Laptop in Ubuntu 14.04

I've got a Dell XPS 15 L502x laptop, with a NVIDIA GeForce GT540M graphics card using the Optimus duel system. I've purchased an external monitor that I can connect with HDMI to act as a second ...
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39 views

Dual monitor suddenly not working

I had dual monitors working fine on this machine for years. A few days ago, I had to borrow one of the monitors for another project. When I brought it back and plugged it in, it didn't work. Ubuntu ...
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3answers
300 views

Multiple-monitors and Nvidia Optimus not working after apt-get update

Just recently (late August / early September 2014) my multiple monitor setup and Nvidia optimus is not working. I had the symptoms characterized by this bug. After setting the BIOS to graphics card: ...
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34 views

Gnome 3 and multiple monitors - parts of the screens staying black

I've got a Radeon HD 7870, and Ubuntu 14.04; it's running fine with software drivers, but I'm trying to get some acceleration running. Ideally I would get both my monitors running (both attached by ...
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91 views

Multiple monitors with Intel GMA & Radeon HD 5450

I have two monitors, first monitor is connected by D-sub to Radeon HD5450. This monitor works well. Second monitor is connected by D-sub to Intel GMA (integrated graphic on board) and system can't ...
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24 views

Gnome Ubuntu Workspace switcher

THe workspace switcher/ viewer only shows one of my screens not the other one. How do I make it show both?
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37 views

What is the best option for using Ubuntu 14.4 with an Asus k55n with dual monitors?

I just upgraded to 14.4 on my Asus k55n. I freaked out a little at first because as soon as it loaded up from the restart the screen was just a bunch of little white squares. I realized eventually I ...
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15 views

Windows popping up wherever they want on dual monitor setup

I'm with ubuntu 14.04 and 2 monitors. When I start programs it seems like they randomly choose on which monitor to appear and even worse, when I have program opened on monitor 1 sometimes it's dialog ...
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32 views

Dual monitors 14.04 garbled

I upgraded to 14.04 and when I login I briefly see my dual screens, then it goes garbled, can't see anything. If I boot in recovery mode, things go fine, except the monitors are replicated, and the ...
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32 views

How do I make arandr config persistant?

Xubuntu 14.04.1 64 bit. I am using arandr and have set up dual monitors and saved the config file to ~/.screenlayout. However each time I boot the computer I have to activate the saved layout. I ...
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1answer
21 views

What driver am I using? I need to reinstall it

I need to find the name of the driver that manages my external monitor, then I need to reinstall it. I am new to linux and I don't know where to find it and how to reinstall it. The monitor is ...
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39 views

How to automatically use external monitors when laptop docked?

I have a Dell Latitude E6430 and it used to automatically switch to the external monitors when docked or on restart but sometime since updating to 14.04 this functionality no longer works.
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22 views

How can I automatically select a new background when my external monitor disconnects?

I have this image: Currently, this is stretched across two monitors (connected via VGA) and it works perfectly. What I want to be able to do is, when I disconnect my monitor, be able to switch to ...
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0answers
31 views

How to assign one X Screen to one LightDM seat?

I'm trying to configure a multiseat setup on a desktop PC with two keyboards two mice two monitors attached to the same graphics card (Nvidia NVS 310) Using these instructions I managed to make ...
2
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0answers
43 views

How can I use monitors plugged into my graphics card and motherboard?

I've decided to try out Ubuntu on my desktop, but I've ran into a problem. When I first booted into it, it only detected my small monitor plugged into my motherboard. I thought of this as a non-issue, ...
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0answers
32 views

Mouse problems over specific window on dual monitor

I am using a dual monitor setup with Nouveau driver and everything is fine except for one thing: When my mouse is over the Wolfram Mathematica window, it becomes a white square with some rubbish on ...
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0answers
90 views

VGA output not working for Intel GS45 Express chipset

I have just installed Ubuntu 14.04 64-bit on my Toshiba Portege R600-10Q laptop (a model from 2009). I am now trying to display the desktop on a BenQ Senseye3 22" monitor, via the vga output, but it's ...
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1answer
43 views

Laptop as second monitor for PC [closed]

I haven't found any solutions for my particular problem yet. My PC got Windows 7 and my ASUS F552E has ubuntu 14.04. I connected the laptop with my graphicscard on my pc to use the laptop as an ...
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1answer
69 views

Configuring multiple monitors to use Custom EDIDs

A few months ago, I purchased a Korean 1440p monitor - the X-Star DP2710 LED. Out of the box, it does not work correctly with Ubuntu, which detects a corrupted EDID over the DVI cable, and refuses to ...
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59 views

dual monitor problem on gnome shell

I have ubuntu 14.04 with unity and have installed two other desktops for it (lubuntu and gnome-shell). After the installation of these two, I could easily log in and out of each session of these ...
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138 views

Second monitor not detected Nvidia ubuntu 14.04

I'm relatively new to ubuntu. I have an HP with intel xeon and Nvidia Quadro FX380 GPU with dual monitors( Dell 19" and HP 24". I've been happily using it for the past 6 months but last week I ...
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1answer
182 views

Ubuntu 14.04 Dell XPS15 HDMI Not Detected

After some actualization my HDMI died. Can someone help me ? Ubuntu 14.04 LTS Dell XPS15 l502x Graphic Driver X.org X server - Noveau -- On system config / displays .::. only appears the ...