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

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Efficiency problems with monitor connected to laptop

I'm running 14.04 on a Dell Latitude and I have a monitor hooked up to it via a docking station. Lately I've been having performance problems with the graphics when the monitor is connected. It's as ...
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0answers
44 views

Dell XPS 13 2015 Ubuntu compatibility (Displayport)

I just bought an Dell XPS 13 2015 (9343) whose Linux (installed Ubuntu 14.04 LTS (Trusty Tahr)) support seems to be quite disappointing at the moment. Before spending money on new equipment I would ...
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0answers
16 views

Make second monitor show workspace that's on the left of primary monitor

I have been searching for a while now, but didn't find the thing I want. I have 3x4 raster of workspaces. I want to configure the workspaces as such that the second monitor shows the workspace that ...
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0answers
10 views

intel-virtual-output freezes

I have been successfully running a triple-monitor setup with my ThinkPad W530. Suddenly at some point within the last days the command stopped working though and freezes. I would activate the ...
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11 views

can't have 3 displays on ubuntu 14.10

my laptop has both HDMI and VGA ports, when I conect them both, It doesn't work and I get this message .
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1answer
28 views

after apt-get upgrade monitors freeze whenever I change something in 'displays'

Steps to reproduce: open Displays change anything, from resolution, to disabling or enabling one of the monitors. click Apply monitors freeze Sometimes I can still see the mouse movements. I can ...
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20 views

Screen glitch: unplugging HDMI 14.04

The issue is that if I unplug the HDMI coming from my external monitor (i have many and it wasn't dependent on the make/model) the screen on my laptop gets essentially cut in half, displaying half of ...
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0answers
38 views

Nvidia GeForce GT 720M + closed drivers + hdmi means crashed

I tried submitting this question on Linux Mint forum but nobody answer me. I understand it's dedicated for Ubuntu but this should be similar. From over a year i'm using my laptop asus X550VC using ...
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2answers
60 views

Cannot set monitor to use 2560x1440

I have a laptop and am trying to plug in two monitors, one of which should run at 2560x1440 I have installed the proprietary nvidia-331-updates drivers and (I think) configured it to use those by ...
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0answers
15 views

Using Notebook as second Monitor for Ubuntu Tablet

i am planning my new mobile development working station consisting of a Notebook and a Tablet as second monitor. Notebook OS: Windows 8.1 Tablet OS: Ubuntu (14 LTS) i have asked here how i can ...
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83 views

ubuntu 14.10 - lightdm can't start unity. Bad xorg config?

When I try to login with lightdm my monitors go dark and then switch off before taking me back to the lightdm login screen. I get a message telling me: Could not switch to the monitor configuration ...
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17 views

Ubuntu 14.04 sidebar cannot be disabled

I don't know what's happening but I can't turn off the sidebar on my second screen. I've played in the settings for a bit but nothing seems to change. The second sidebar is bugging me a lot, someone ...
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25 views

how can i airplay Mirror my laptop screen and sound projector

I'm a teacher and I often have powerpoint or other resources I want to show students projected to a whiteboard. My school is phasing out serial port connection and is installing a airplay box, which ...
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1answer
48 views

Using Ubuntu Tablet as second monitor for Windows 8.1 [closed]

i am currently planning my new mobile development workstation consisting of a Windows 8.1 Notebook and a Ubunutu Tablet. I know that there's Software available for android, that mimics a monitor for ...
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1answer
26 views

Second display won't work with nvidia drivers

I have recently installed Ubuntu but the drivers from x.org are not so good, because: the display with NVidia graphics card (plugged by HDMI) has some problems server x from x.org nouveau driver ...
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0answers
27 views

How to Set Up Dual Monitors to my ubuntu machine? [closed]

I saw some articles indicating that this can be done on windows . I wonder if i can do it on ubuntu
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0answers
67 views

Ubuntu 14.04 laptop and monitor problem

I meet with this problem second time. I'm using a laptop with dual boot. I use Ubuntu 14.04 and Win7. I have a 21,5" monitor plugged with HDMI cable to my notebook. I did this: my laptop was turned ...
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0answers
36 views

2560x1440 HDMI monitor stuck at 1920x1200 resolution

SONY laptop SVS151190X with Intel IGP: 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) Linux 3.13.0-45-generic #74-Ubuntu SMP x86_64 x86_64 ...
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0answers
26 views

ATI R9 2xx's: Dual-monitors on seperate cards

I can not seem to get my second monitor recognized/running in ubuntu 14.04.02, the light is yellow and the screen off. I have tried the basics by going into the display settings but all it shows is my ...
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19 views

Ubuntu 14.04 loses screen arrangements on reboot

Every time I boot into my Ubuntu 14.04 I re-arrange the monitors in Screen Display to match the physical arrangement of my 3 monitors: DFP-0/GPU-0, DFP-1/GPU-0, DFP-3/GPU-0 Every time I reboot, ...
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0answers
31 views

unable to switch screen in Kubuntu 14.10

I recently moved to Ubuntu from Windows and I'm using Kubuntu 14.10 now. I have a laptop with an external monitor. The problem is, I am not able to switch between the monitors with Kubuntu running. ...
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0answers
41 views

The same monitor shows up as two displays

I have a monitor plugged into my Dell Latitude running Ubuntu 14.04. I have the problem that my monitor shows up as two separate displays. But it is actually showing only one of the displays. And ...
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1answer
122 views

Ubuntu 14.04: Cannot change screen resolution

I know there are many questions with the same topic, but no solution seem to apply to my case... I'm on Ubuntu 14.04 on a Toshiba Satellite L735 laptop. My xrandr output is: Screen 0: minimum 8 x 8, ...
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0answers
28 views

Get both Graphics cards working

I have 2 nVidia GeForce GTS 450/PCIe/SSE2 graphics cards, each with a DVI, VGA and HDMI port. Unfortunately, only one of these cards is detected by Ubuntu, so I have to have one screen on VGA and the ...
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0answers
75 views

Monitor disconnected when screens go black

Since short I have a new 4K monitor connected to my AMD R9 280x on Xubuntu 14.04 via DisplayPort. I have a second monitor connected to the computer as well via HDMI. What I'm observing is that when ...
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2answers
42 views

cannot move cursor to external monitor

I just connected my external monitor and it all works fine. I tested this even in windows. But on ubuntu I cannot take the cursor to the external monitor. It just doesn't move there and it gets stuck ...
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0answers
16 views

Mouse Issues on VGA output

I am running Ubuntu 12.04 on a Lenovo Thinkpad X200. I am using the VGA output on a second monitor. The mouse works fine when using it but as soon as I touch the internal screen on my Thinkpad, the ...
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28 views

Monitors lose position in multihead setup in 14.10?

I'm experiencing an issue with Kubuntu 14.10 where after I set the monitor position and reboot, the position is again lost each time. This is being set via System Settings -> Display Configuration. ...
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72 views

External monitor works fine, but laptop shows black screen (even though it is detected)

I have quite a weird problem: a few months after successfully using Ubuntu, the laptop screen went black. After some attempts to fix it, I have discovered that when I plug in an external monitor, I ...
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0answers
11 views

ATI Eyefinity vs Nvidia SLI 3-monitor span for gaming [duplicate]

I'm going to be building a computer for iRacing/gaming, and I'd like to use Ubuntu. I'm wondering which card vendor has the best support for a 3-monitor setup that would treat the 3 monitors as one ...
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1answer
40 views

Dual Screen / Dual GFX card issue

I recently added an additional video card (Radeon HD 6450) to my system and instead of improving the response time its worse than before. On the 1 GB card the video display is very laggy, on the ...
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1answer
49 views

Use 100% of edge to go between monitors

My monitors are currently arranged like this: +---------+ | | +------+| | | || | | || | +------++---------+ If I'm at the top-left corner ...
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0answers
40 views

How to get “xdotool windowsize” to resize a window across two monitors

I have two monitors side-by-side. I can manually resize a window to span across the two monitors. However, I am not able to automate this action using "xdotool". It appears that I can resize the ...
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1answer
35 views

Split large resolution into 2 desktops

I am trying to find a solution to a limitation we have with a split DisplayPort to 2 monitors. It creates a single display across each monitor. As far as hardware goes our hands are tied since we ...
0
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1answer
59 views

2 pc, 2 monitor: Switching between extended screen and two separate screens

I have two computers and two monitors: My primary computer: computer1, is hooked into two monitors: monitor1: primary monitor and monitor2: secondary monitor. The second monitor, computer2 is only ...
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1answer
30 views

Laptop-connected VGA monitor is mirror only, not independently detected. 14.04

I know this is a common occurrence but I can't detangle the error. This connection has previously worked, but between then and now (12 months perhaps), I tried to get steam running and may have messed ...
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47 views

Monitor Samsung with bad resolution in Ubuntu 14.04?

I have a Dell laptop connected with the second monitor. I have the following specifications of my NVidia card: sudo lshw -C video PCI (sysfs) *-display descrição: VGA ...
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1answer
34 views

is there a hot-key to activate a second monitor?

A recent update caused problems with my multiple monitors. I have a laptop with a broken screen that i have completely removed. Ubuntu 14.04 is on the laptop and i can hear the sound where i should ...
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0answers
14 views

Disabling one video output with a keybinding

I currently run a dual monitor setup. When I only need to use one monitor, I leave the second monitor turned off. However, when I launch certain applications, they open on the second monitor since ...
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0answers
50 views

dual nvidia gpu not working right

i have 4 monitor setup soon to be 5 and 2 gpu in my desktop. i got the first gpu (gtx 650 TI on a 16x gen2) to work just fine but my second card (GT 520 on a 1x slot gen 1) does not work quite right. ...
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110 views

Ubuntu 12.04 Thinkpad 430 Mini Displayport Weird Effects

I'm running 12.04 on my Thinkpad 430, and I'm connecting that to a Samsung 32 inch 720p TV through a Mini Displayport to HDMI cable. I've had no trouble with this cable when connecting from Windows ...
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0answers
79 views

NVIDIA X Server Settings only show one huge screen

My current laptop features dual graphics. I am trying to set screen resolution using the NVIDIA X Server Settings application, but it only show one huge screen, which is composed of my external ...
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1answer
49 views

Permanently set the resolution for my second monitor

After every restart, I have to manually set the resolution of my second monitor with: sudo xrandr --newmode "1600x900_60.00" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync sudo xrandr ...
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0answers
22 views

My Macbook has two “Built-In Displays”

I just installed 14.04 on my Macbook Pro 8,2 and I noticed that I have two "Built-In displays". Some applications open on the second display with no way to get to them. If I disable either display, I ...
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0answers
69 views

Flickering Mouse Cursor in Ubuntu 14.04 LTS

I'm a newbie on Ubuntu. I've installed Ubuntu 14.04 LTS on Dell XPS 17-L702x and I have two Samsung syncmaster s24b350 connected. Now my problem is that the mouse cursor is flickering very often and ...
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1answer
45 views

Where are the display configuration files in 14.04 LTS?

My display configuration has become corrupted. It takes longer to start Ubuntu than usual, and I notice the monitor is flickering multiple times, like when it is changing video modes. Since I first ...
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0answers
30 views

Multi-monitor on amd drivers

I have a 280x in my pc and 2 monitors connected to it and I had multi-monitory setup working on it by now it does not seem to start. In amd drivers center I keep getting this: The current ...
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0answers
21 views

Can two FirePro 2270 graphics cards run with 3 monitors to form a single desktop?

Can two FirePro 2270 graphics cards run with 3 monitors to form a single desktop? I can't seem to get it to work with the fglrx drivers. Is it only for two separate desktops then? One desktop on one ...
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1answer
60 views

3 Screen Setup - Haswell HD4400 - works on windows

I need some hints because of my 3 screen setup: I have an Lenovo X240 with ultradock, which supports displaying to 3 screens. But my external screens are recognized as one generic screen. See my ...
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0answers
18 views

Monitor shown as 16:10 instead of 16:9 [migrated]

I am using Linux Mint 17.1 Cinnamon on a Dell Latitude E6540 with a Dell U2713hm monitor, the displays are not mirrored, and arranged next to each other. The monitor has an aspect ratio of 16:9, ...