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

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How do I solve weird behaviour when 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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6 views

ATI Radeon HD 4670 - Dell dimension 5150

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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20 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
14 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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6 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
17 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
23 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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19 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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89 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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26 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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28 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
37 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
30 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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0answers
9 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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0answers
27 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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0answers
17 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 ...
2
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0answers
69 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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0answers
33 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
237 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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0answers
29 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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0answers
61 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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0answers
22 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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31 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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0answers
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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0answers
29 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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0answers
26 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
20 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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0answers
35 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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0answers
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
23 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
31 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
75 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
40 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 ...
1
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1answer
53 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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0answers
48 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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0answers
82 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 ...
0
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1answer
142 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 ...
0
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1answer
112 views

Nvidia X Server Settings only shows 1 screen (laptop + external monitor connected)

I have recently installed a new copy of Ubuntu 14.04 on my Dell M3800 which has Nvidia Quadro K1100M graphics card. Later I also connected my external monitor via HDMI (HDMI to DVI connector). Then ...
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0answers
80 views

Dual-monitor seems to be default in Ubuntu 14.04, and I try to solve it, but close the wrong monitor

I'm using Ubuntu 14.04 LTS. My mouse goes outside the screen when moving to the right edge, so I guess something wrong with my monitor setting. lt seemed that "dual monitor" was set as default ...
1
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1answer
40 views

Dual Screen in Ubuntu(One inside the other)!

I recently migrated to Ubuntu from Windows. And for some strange reason the screen that boots up functions as though there are two different screens on the same monitor. Since I am new to Ubuntu I ...
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0answers
26 views

Screen goes blank after undocking

For some reason since yesterday completely working system can't work without dockstation: screen goes blank, but everything else works. I still can login as guest and everything will work fine, or ...
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2answers
48 views

How to run installation CD for second monitor?

I am running ubuntu 14 off of a live USB. I have a second monitor that I would like to use while using ubuntu. It has an installation cd that you have to install before using, and when I click on ...
0
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1answer
70 views

HDMI Output Not Working Properly

Excuse my bad photographs but hopefully they help to illustrate the problems I'm having. The colour is messed up and does not look as it should. In addition to this I also do not have any audio ...
0
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0answers
60 views

DisplayLink USB DVI adapter recognized as CD-ROM, no signal output for Ubuntu 14.04

I am using this TruLink 30359 which has a DisplayLink chip. http://www.ebay.com/itm/121402269836?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 To explain what happened in my Ubuntu 14.04 ...
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0answers
107 views

Dual-Monitor layout and primary display with Nvidia in Gnome-Shell

I have installed Ubuntu 14.04.1 with gnome-shell version 3.10.4. I can attach a second monitor to my laptop and it is recognized. If I configure it with the nvidia-settings at the right of my laptop ...
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0answers
64 views

any support in any Ubuntu flavor for per-display DPI scaling?

my question is about having multiple monitors with different density (DPI) to display the UI at approximately the same physical dimensions. The feature is supported by Windows 8.1 and Mac OS 10.9. ...
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0answers
44 views

nVidia Dual Monitor Resolution Problem

I have just installed Ubuntu 14.04. I have two monitors and the monitor on the left has a different resolution and I can't change it. (See: screen shot) Output of xrandr: Screen 0: minimum 8 x 8, ...
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0answers
36 views

Unable to force resolution

I've got a system with a GTX 750. I've also got a 2560x1440 monitor. I'm having trouble getting it to work at all. Initially, I had an older graphics card installed and got the system up with 14.04 ...
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0answers
79 views

Ubuntu 14.04 Requested size ** exceeds 3D hardware limit ** - dual monitors

I know this has been discussed before, but the solutions I found is for older versions of Ubuntu. What about the 14.04? Any idea on setting up two monitors to work with Ubuntu Unity decently? Not ...