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

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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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1answer
98 views

Xubuntu 14.04 setting Primary Monitors

I'm using Xubuntu 14.04 with the 331.38 drivers that I installed via the "Additional Drivers" My issue is that when ever I start up a game it starts up in the wrong monitor, to fix this I when my ...
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1answer
89 views

Cannot move windows to second screen

I have an external monitor plugged into my notebook, but I cannot move windows from the bottom screen (built-in screen) to the upper screen (external monitor). The windows stick at the top border ...
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0answers
115 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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1answer
31 views

Impossible to start Ubuntu after installing lxde

i just tried installing lxde on my Ubuntu 14.04. I wanted to try working with two different screen at the same time. So to do that typed CTRL+ALT+F2 to go in another terminal and then i typed the ...
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26 views

Display seems to crash after login [closed]

When i log in as main user, the display seems to crash. It only shows artifacts and the unity bar at the top. When i log out and back in as a guest everything is fine. So there must be a config in ...
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0answers
29 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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43 views

Multi screen inactivity suspend

I am new at this so please bear with me, My question is: I have two screens on my pc one 22" monitor and one 26" HDTV now the monitor is connected via a VGA port and the TV via a HDMI port both of ...
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139 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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12 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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1answer
49 views

After updating ubuntu 14.04 to ubuntu-proposed using software updater on jun 27th built-in notebook display keeps showing boot screen

after updating ubuntu 14.04 using software updater to ubuntu-proposed automatic displays configuration stopped working correctly. My built-in notebook display keeps showing ubuntu boot screen(the one ...
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0answers
22 views

How to make my secondary display not to overflow?

My primary display resolution is 1920x1080 and my secondary display is 1366x768 (both physically and in the settings). My O.S. is Ubuntu 14.04. I extend the desktop and my problem is that the content ...
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0answers
37 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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0answers
214 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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1answer
275 views

Xubuntu 14.04 does not detect second monitor

I have a Dell Latitude Laptop E6440. The laptop have two interfaces, VGA and HDMI. I connect an external monitor to the VGA port, but when I ran the xfce4-display-settings I see only one monitor (the ...
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42 views

Switching back to nvidia after redock Lenovo W520

This is using a Lenovo W520 and the dual video port docking station. I am trying to undock with switching to the Intel video card and re-dock switching back to the nvidia card. 1) Boot attached to ...
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0answers
47 views

Optimus technology: Can I use intel graphic with HDMI external display

I have a Lenovo T430 with the optimus technology. I am using nvidia-prime to be able to switch between nvidia and intel cards. So, far there is no problem until I got an external monitor and I wanted ...
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1answer
67 views

Game in Wine causes second monitor to become over exposed

I have 2 monitors and when I run a game through Wine, it causes the second monitor to become over exposed and increases the sharpness quite a bit. I have played around with settings in both the game ...
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3answers
244 views

Dual Monitor not recognized in Xubuntu 14.04

I have a Dell Latitude Laptop E6440. The laptop have two in4terfaces, VGA and HDMI. I connect an external monitor to the VGA port, but when I ran the xfce4-display-settings I see only one monitor (the ...
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195 views

Problem with external monitor

Since yesterday I have weired problems using my external monitor (Benq 19" connected via DVI over DVI->HDMI cable and HDMI->Mini DisplayPort-Adapter) with Ubuntu 14.04. Until then I could use this ...
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25 views

External Montor on Samsung N150 Plus will only run on 1024 x 600 resolution

My Samsung N150 Plus runs OK on Ubuntu 14 which I have just installed as dual boot with Win 7. However when I connect my ASUS ML239H Monitor I can only get 1024 x 600 resolution. With Win 7 the ...
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40 views

Using Internal and External Radeon GPU's for Multi-Monitor

I currently have a two monitor setup that works perfectly fine for Windows. However, in past experiences with Ubuntu, I've been forced to use only my internal GPU (when both are bios enabled) in ...
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44 views

Disable laptop display before login

I am looking for a way to disable my laptop's built in display before (or right at) the login screen on Ubuntu 14.04. I have a second monitor, and want to only use that. I already have changed the ...
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0answers
23 views

Screensavers on multiple monitors

I'm looking to set a screensaver up on one monitor while leaving my other monitor available for work. I'm currently using xscreensaver and a VGA. Is there some sort of option I can ask for declare a ...
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0answers
69 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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1answer
39 views

15 computers + 1 “master” computer = major headache

I'm here to ask about a research project for the Math department at a university I have been just accepted to work on. The primary obstacle of the project is as follows. The project requires a set of ...
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0answers
51 views

How to duplicate two displays of three in total in Ubuntu 14.04?

Two displays, which I want to make mirror, have the same resolution (1920x1080). One of them is TV on a wall :) It's not very comfortable to move content to TV each time, because it's behind me. I ...
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0answers
31 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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1answer
104 views

14.04 LTS - Nvidia 331 Dual Monitors not working any more after updating

When using the X Server Nouvea Display Drivers my dual monitors works perfectly fine. However it sometimes crashes so i decided to change the display drivers to the the latest NVIDIA 331.38 driver ...
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0answers
245 views

Asus Chromebox Displayport monitor not detected

I have installed ubuntu 14.04 as a dual boot OS on my Asus Chromebox and I'm a linux newbie. Anyway, everything seems to be working fine except for the DisplayPort monitor not working. The ...
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1answer
29 views

Unrecognized beamer on NVidia GTX 660 with 331.20 drivers

I've an NVidia GTX 660 with 331.20 drivers installed on my ubuntu 14.04 and cant get my beamer recognized. I've tested with latest drivers on Windows 7 and is also not recognized even if another ...
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1answer
71 views

'RANDR extension not present' error message when setting up dual monitors in Ubuntu

I am running 32-bit Ubuntu precise (12.04) and trying to set up dual monitors. I have 2 AMD/ATI Cayman XT [Radeon HD 6970] video cards in crossfire mode (if that makes a difference) and no proprietary ...
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138 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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0answers
64 views

Ubuntu 14.04 second display brightness problem

Few days ago I have setupped Ubuntu 14.04. I'm using laptop and second monitor via HDMI cable. Now every about 1-2 minutes my second monitor's brightness changes (increase after that decrease and ...
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0answers
14 views

How to enable the “switch screens” button in Ubuntu 14.04? [duplicate]

Some older Ubuntu versions used to have this button that showed and overview of all screens and allowed to easily move Windows between them. How can I enable it in Ubuntu 14.04? I would like to ...
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1answer
113 views

nvidia-settings detects no display

I have ubuntu 14.04 and nvidia driver 331.38. My notebook has GeForce GT 555M and Intel Graphic card. The ubuntu works fine except one issue. I wanted to connect two external monitors and realised ...
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1answer
82 views

i can not watch youtube full screen videos on the monitor

I have just got a new monitor to connect it to the laptop. I have opened Firefox in both screens. When i make full screen mode on the monitor and want to surf the web on the laptop at the same time, ...
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0answers
49 views

Slow desktop performance on dualscreen setup with Nvidia proprietary drivers

Ok so here is my situation: I have a 2 monitor setup up that works great with my windows computer. I have a nvidia gforce 650 ti boost with both monitors attached to it. I downloaded the latest ...
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1answer
36 views

USB to DVI adapter doesn't work on ubuntu 12.04 LTS

I tried to connect a second monitor to my hp PC so I bought a USB to DVI adapter from ebay last week. The model is this one http://www.ebay.com.au/itm/USB-2-0-T...2d737f4&_uhb=1 I am using hp ...
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1answer
58 views

Ubuntu 13.10 Nvidia display issues

I've been attempting to fix an issue all day to no success. I'm facing a problem that is only allowing me to use my inbuilt graphics card. I have three monitors and an Nvidia GeForce GTX 660; I've ...
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1answer
28 views

/etc/group - group on last line not usable? Is it a bug?

$ cat -net /etc/group | tail -n 3 67 vboxusers:x:127:hannu$ 68 nvidia-persistenced:x:128:$ 69 $ $ a) With the lines as shown I get the profiling (System Settings > Color > ...
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66 views

xrandr operates don't save after reboot

I use ubuntu14.04 , with GeForce 220 installed . I don't install nvidia driver and don't want too(please don'ot tell me install nvidia driver) .Follow this link Nvidia DVI/VGA problem .I success make ...
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1answer
367 views

Ubuntu 14.04 two Nvidia cards triple screen Xinerama with proprietary driver, third screen black and X cursor [closed]

I am having some issues getting my third screen working properly. I had triple screens working fine on 12.04, using 2 nvidia cards. Did a fresh install of 14.04 and having no end of problems getting ...
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0answers
189 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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32 views

Permanently disable internal LCD panel Lenovo R61

I build a pseudo-desktop from a Lenovo thinkpad R61 with an htpc/media server in mind. I took apart the laptop, physically detached the busted panel, built a nice wooden case for it and a 21" VGA lcd ...
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1answer
141 views

Is it possible to remove nouveau driver from a dual graphics system? Kubuntu 14.04

I've tried numerous times to get my nvidia card running on Ubuntu with no success so far, but that's ok, I don't actually need the power nor the advanced graphics that the card provides so I'll make ...
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63 views

Screen resolution after reboot is incorrect

I've reviewed lots of questions related to this issue and I'm actually stuck. Here's what I have: 2 monitors set in mirror mode. Problem I had was that one of them was not having the 1600x900 ...
1
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1answer
57 views

external monitor can't display max resolution

I had been using an external monitor, an old Dell Inc. 19" with Ubuntu 14.04 for a while now, The resolution it displayed at was something like 1366x768 or 1366x1024, I can't remember exactly which ...
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0answers
71 views

How to set wallpaper for both monitors on Xubuntu when using arandr

I used arandr (a GUI for xrandr) to set up two monitors side by side in my xfce/xubuntu DE. However, the wallpaper that set using the xfce settings manager applies only to one monitor, while the other ...
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315 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 ...