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

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Horizontal Screen scrolling + Slow framerate with usb monitor - Ubuntu 14.04

I have been trying to setup my usb monitor as the third monitor on ubuntu 14.04 I installed the latest nvidia driver and followed the instructions on 331.113 readme randr14 Basically where im at is: ...
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62 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 ...
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99 views

Wacom Tablet settings missing

I am running Ubuntu Studio 14.04 with tree monitors on an NVidia video card. I have a large Wacom tablet connected. The tablet is seen and works. Two of the monitors are the connected DVI and are the ...
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39 views

Nothing on screen except for the background picture after logging in

I was using two monitors last night and now when I turn it on and log in the second monitor is mirrored and nothing is on my desktop. If I try to open something from the terminal it says it cannot ...
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50 views

3 displays, 2 connected to GPU, one connected to motherboard

I have 3 displays, 2 connected to the GPU (it is an AMD HD 6790, DVI and HDMI connectors), and another one using my mobo's VGA connector (the one you use when you don't have a dedicated graphics ...
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63 views

Dual monitor screens are reversed only in login screen

Today I installed Ubuntu 14.04 on my computer. I have dual monitor setup, and they work perfectly when I'm logged into the operating system. But every time I have to login in the login screen, the ...
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38 views

Extended Desktop broken into 4 halves on 2 monitors

I'm having this issue on my HP Envy 17-2070nr with a Radeon HD 6850M. I'm using Ubuntu 14.04. Here's info. for anyone who can help: Extended desktop causes internal monitor to show 1/2 of its own ...
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64 views

Ubuntu showing problems in connecting two external monitor

I am working with Ubuntu 14.04 on Dell E7240. I have connected two external Dell monitors E2211Hb but they both are not working simultaneously. Yesterday both were working fine and after some time one ...
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116 views

2nd Monitor not displaying anything with Multiple X Screens

Specs: Unity Nvidia Quadro K2200 - 340.46 Drivers Multi-Monitor: ASUS P287Q (4K main, DP 1.2) and Generic Lenovo Thinkvision 1600x1200 monitor (DVI) Since I have different DPIs on both screens, I ...
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81 views

xrandr and multiple displays

So I'm pretty new to Ubuntu and Linux in general. I have Ubuntu 14.04 installed on my laptop and want to attach another monitor. The native laptop display is running at 1366x768 and my monitor is ...
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87 views

Two monitors one 23“ hd and one 28” 4k

I have two monitors connected to my computer, I am using Ubuntu 14.04.1. One screen is set at full hd 1920x 1080 and the other monitor is 28" 4k set to 3840 x 2160. I have nvidia 760 display card. I ...
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92 views

Connecting second screen via HDMI

I'm pretty new to Linux: I'm running under Ubuntu 14.04 Gnome which I recently installed (my laptop was OS-less when I bought it). It has an Intel Haswell Mobile chipset and I can't seem to connect a ...
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157 views

Second screen not disconnecting (HDMI)

I have an HP Pavilion TouchSmart laptop running Ubuntu 14.04.1 I usually connect a second display via HDMI which worked fine until today. I can connect the display fine and everything ...
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103 views

AMD Radeon can not handle multiple monitors on a Dell Inspiron laptop

My dual display will not work properly. The screen flickers and displays half in primary and half in secondary monitor. My laptop is Dell Inspiron 7520 with dual video card: AMD Radeon HD 7730M and ...
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168 views

Master the dual screen in Ubuntu 14.10

My setup is a laptop connected to an external screen I have just bought, so that I have now a built-in 14" display (1920*1080) and an extra 24" display at 1920*1200. Because the widths match I use ...
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60 views

Ubuntu 14.04 Multiple Display Intel Gen 3

I'm a newbie at this and I am messing around with dual booting into Ubuntu 14.04. I'm trying to get my monitors to be recognised by Ubuntu but I have been unsuccessful... Screen 0: minimum 320 x 200, ...
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44 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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158 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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96 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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28 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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171 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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206 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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66 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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95 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 ...
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215 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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184 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 ...
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144 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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210 views

how to set default screen resolution in Kubuntu 14.04

OK, so I found the new screen resolution setting button, thank you, but now I need to know how do you make it stay. Every single time I reboot it resets the resolution back to some strange default ...
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151 views

Multiple Monitors Detect Add Remove Laptop Auto Change Nvidia X Server Settings

Physical Setup; 4 monitors, 1 laptop, 1 hdmi switch box, 1 graphics card used for all 4 displays. Monitors listed in nvidia x server settings as; CRT-0, DFP-1, DFP-3, DFP-4. Short description of ...
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140 views

Unity: Have a window that is always on specific workspaces?

I have two monitors and 4 workspaces configured in unity (2 monitor on each workspace). I do development using IntelliJ IDE on server side and hybrid mobile app frontend so I often have two instances ...
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359 views

Second monitor no longer working on Ubuntu 14.04 [Intel]

My laptop is an Acer Aspire M and I used to connect a second monitor through hdmi regularly. About a month ago, it simply stopped working. I don't really know anything I can do, so any help would be ...
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232 views

Lubuntu 14.04 Dual Mon with ARandR Screen Layout Editor

I have make use of the XRandR with Lubuntu 14.04 on my old VAIO TZ17GN notebook. It working fine for my dual monitors situation. But I found some tricky issues. Desktop issue First of all, I can't ...
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143 views

External Display HDMI out not working

I know this may be a stupid question but are Samsung monitors supported in Ubuntu? I ask because I've recently switched over from windows to Ubuntu 14.04 on my laptop. I have a Samsung monitor I user ...
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185 views

Recent update in ubuntu 14.04 resulted in my external monitor being unable to go above 1024x768 without being met with a black screen/no signal

This is all through HDMI. I cannot go above 1024x768 or I get a black screen / no signal. This means anywhere between 1152x864 and 1920x1080 (which is what I had been set at before the issue). ...
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68 views

Need to run xscreensaver in ONE of the TWO monitors in a multihead setup - Ubuntu 12.04

I have a multihead setup with two monitors, running Ubuntu 12.04. How to make xscreensaver run in one monitor. Need only one of the following lines present, on invoking xscreensaver. xscreensaver: ...
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142 views

Why doesn't xrandr recognize my view as connected, even though it's on?

I have a dual screen setup via a Lenovo docking station, the laptop itself has its lid shut. The two screens are mirror display, i.e. both are clearly on and working to some extent, they both display ...
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226 views

Dual display detected but not working after startup 14.04

Here's my situation--I've got an HP Envy laptop running 14.04 with an AMD A10 APU. Catalyst display dashboard and the works are installed. As the system boots up, it acknowledges the external display ...
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130 views

Nvidia layout inconsistencies when saving to x configuration file (Ubuntu 14.04)

I am having trouble saving to the x config file from the nvidia x server settings. When I click the "Save to X Configuration File" button, I get "The current layout has some inconsistencies". Under ...
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558 views

Xubuntu 14.04 - HDMI Display no longer detected

I have a Sager NP8268, and install Xubuntu 14.04. I have been using an external Asus PB278Q monitor for 3 weeks or so via HDMI. Today, the monitor is no longer detected by xfce4-display-settings. ...
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15 views

Xserver shows just the icons on the second screen

i would like to have two different Xserver sessions, because i want to use the same machine from two differet computer by VNC. I mean we are two different person that need to work in the same server, ...
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103 views

Motherboard secondary DVI no signal

I just bought a motherboard with integrated graphic (intel) 3 outputs: 1 x VGA 1 x HDMI 1 x DVI I've been able to use both VGA & HDMI but the DVI is not detected. $ lspci 00:02.0 VGA ...
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3k views

ubuntu gnome 14.04 can't turn off built-in display

I have ubuntu 14.04 gnome(3.12) on my laptop. My laptop screen is broken so I just have an external monitor plugged in and I use that. In the passed version I would just turn off the built-in (broken) ...
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131 views

Cant get full resolution on Second monitor with nvdia geforce 210 on 14.04

I am using two Samsung 1920x1080 monitors with my Ubuntu 14.04 machine having an nvdia geforce 210 graphic card. The first monitor is connected to the VGA port and the second monitot to the DVI port ...
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41 views

Only one external screen deteced and the other one is mirrored

I am very new to Ubuntu. I have dell laptop E5440 with Ubuntu 14.04 connected to a dock with 2 DVI-D port and one VGI port. I am trying to setup my two HP external screens to be extended but I am ...
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204 views

Ubuntu 14.04 lts and Nvidia 9800GT

I recently aquired a new GeForce 9800GT GPU and an additional monitor for my desktop. I put it into my ubuntu x64 system, and installed the new drivers, initially from nvidia, then from the apt-get ...
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385 views

Second Monitor doesn't work properly (Ubuntu 14.04, Dell XPS13 Dev. Edition (Intel HD4000))

I fail at configuring a second monitor using Mini-Display-Port > HDMI cable > ASUS MX279 on Ubuntu 14.04, Dell XPS 13 Dev. Edition (latest Intel HD4000 drivers installed). Out of the box it worked ...
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1k views

HDMI video output not working for external monitor

I have installed from scratch ubuntu GNOME 14.04 with gnome-flashback on my old HP HDX 16 laptop (core 2 duo p8600 + nvidia GT9600M + 4GB of ram) and I have problems with the HDMI output (I use it to ...
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234 views

Dual monitor setup only one monitor detected

I have a dual monitor setup connected through dvi-d and vga. Until yesterday everything went fine, but now both screens turn on at kernel boot, while the vga screen turns off at ubuntu 14.04 boot. At ...
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109 views

My cursor is flickering on 2 of my 3 monitors

My cursor is flickering on 2 of my 3 monitors on every screen update. I jus had a fresh install of Ubuntu 14.04 LTS (64-bit), and now my screens are properly setup, i noticed that my cursor is ...
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206 views

Three screens with Nvidia video card and Intel HD graphics?

I have a Nvidia video card, but also a built in Intel HD graphics. On windows I can do 3 screens with 2 screens on the nvidia and the third on the Intel card. Is this also possible in Ubuntu? Because ...