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

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UBUNTU stuck at shutdown after connecting to external screen

I am in deep peril as I come to you. I am writing my thesis and all hell is loose. I have tried various solutions right from installing to everything online for over 20 days now. As a result, I cant ...
0
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0answers
15 views

How to prevent my display settings from getting messed up after opening System Settings panel?

While using Ubuntu 14.04 I have two displays. One should use 1024x768 resolution and the other 1366x768. After booting the system it works fine, both displays are detected normally and they are not ...
2
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1answer
48 views
+50

Rotate dual monitor screen 90 degrees on Ubuntu 15.10

I am trying to rotate a dual monitor which is attached to the VGA output of my laptop. My system is Ubuntu 15.10. However, here is the outcome I get when I use xrandr: xrandr --output VGA-1-0 --...
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0answers
92 views

Ubuntu 16.04.1 Post Upgrade - Not detecting hardware

After poking at this nearly all day I have determined that for whatever reason Ubuntu is not detecting hardware changes with the video card. My most recent attempt at fixing it was to re-enable the ...
0
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0answers
14 views

Ubuntu Freezes When Monitors Turned Off Then Back On

I've been trying to figure out how to stop Ubuntu from putting my computer on standby because each time I tried to wake it, I found the OS had crashed/frozen. I'm using multiple monitors and after ...
2
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1answer
33 views

Where does Unity/Unity-Greeter Load X Configuration From?

On my setup, I have one monitor that has been rotated vertically, and another that is the usual horizontal orientation. I've set all the display settings in my GNOME shell so everything looks fine, ...
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0answers
15 views

Two external monitor on Dell XPS 9350 (2016 model)

On Dell XPS 9350 (2016 model) you need to use the USB-C port if you want to enjoy a external monitor. One of the USB-C adaptors is Dell Adapter - USB-C to HDMI/VGA/Ethernet/USB 3.0 (DA200). When I ...
0
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0answers
68 views

Second monitor doesn't awake after turning off

I have two monitors (not mirroring) which generally works as they should. However, sometimes (not always!), when I turn the monitors off, and the, turn them on again (typically for the lunch break), ...
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0answers
6 views

Change of brightness affects monitors position

I have Ubuntu 16.04.1 and a laptop Acer Aspire 5820TG. When I change brightness (pressing Fn+Left) down, my monitors are going crazy (switching on and off / changing positions and resolutions). How ...
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0answers
33 views

nVidia prime - can't run external monitor on Asus Zenbook

I bought a new ASUS Zenbook UX501VW with Intel card + Nvidia Geforce 960M. First what I did after installation was set grub option to nouveau.modeset=0 because fans were really loud. I guess that this ...
1
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0answers
12 views

How can I constrain workspace-switching animations to their respective monitors?

Is it possible to ensure that the animation for windows while switching between workspaces stays on the window's monitor? For example, if there is a window on the right monitor (indicated by W below) ...
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0answers
113 views

Graphic issues after Ubuntu 16.04 with [Nvidia GTX 970] - second screen flickering/turns black

From Graphics issues after installing Ubuntu 16.04 with NVIDIA graphics I can say that I've tried all the different drivers and even the nouveau won't work. Tried the purge and what follows in ...
1
vote
1answer
458 views

Thunderbolt Display on non Apple computer

I just got a System76 Galago UltraPro, and I'm trying to hook it up with my Thunderbolt Display A1407. I have tried by using both the Mini DisplayPort from the display to the computer, and a ...
3
votes
2answers
11k views

Ubuntu 14.04 doesn't detect second monitor

I have a problem with Ubuntu 14.04. Suddenly, my second monitor isn't detected on Ubuntu. It worked fine before. When i try using Windows 7, it is detected. I'm using HP Pavilion G4 1212tx AMD ATI ...
2
votes
1answer
94 views

VM Gaming via GPU Passthrough without a dedicated monitor?

I'm looking at building a computer that can virtualize two or more gaming machines at once. I'm hoping to be able to play two (or more) games at the same time, and I'm hoping to be able to display ...
0
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0answers
28 views

Dual monitor setup with Two Graphic cards on Ubuntu 16.0 (GTX 630 and GTX 610)

I'm trying to setup Dual monitors for extended desktop on Ubuntu. I have two cards, GTX 630 and GTX 610, its been a mess for the last 2 days but I've made it work up to a point where the mouse moves ...
1
vote
1answer
20 views

Can I use my Ubuntu notebook's display as second external monitor for my Windows desktop? [on hold]

I have two different devices: A notebook running Ubuntu and a desktop computer running Windows 10. I want to connect my notebooks display to my desktop computer as additional external monitor. Is ...
0
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0answers
11 views

Ubuntu - Gigabyte z170MX gaming 5- 3 benq monitors

It would appear that ubuntu recognizes my 3 Benq 24" inch monitors. The motherboard in question supports 3 displays. Unfortunately, when all 3 are plugged in the one from the VGA port works, the ...
3
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0answers
123 views

Trouble setting 4 monitors with 2 Ndivia GPUs

I am having troubles setting up Quad monitors. I had 2 identical GPUs (geforce gtx 750 Ti) and 4 identical monitors. After installing Ubuntu 14.04, nvidia driver(NVIDIA-Linux-x86_64-346.72.run) ...
0
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0answers
104 views

Ubuntu 14.04 x64, PNY Nvidia GT730 (nvidia 340.96), dual monitor (DVI + VGA), VGA not detected

Fresh Ubuntu 14.04 64 bit install on desktop machine (dual boot with windows 7/64.) Video display adapter is PNY NVIDIA GT730 (PCI express). NVIDIA driver version is 340.96. NV-CONTROL version is 1....
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0answers
20 views

How to use 1k external monitor with 4k Dell Precision laptop

I have a 4k Dell Precision 5510 laptop, and I need to add a 1k external monitor to it, but I can't get the resolutions to get along. If I use @2x scaling, everything looks comically large (and ...
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0answers
6 views

Unity Dock Appears When Viewing Movies On Dual Screen System

I have a dual screen setup and I often will have a movie playing in VLC while surfing the Web on the other monitor. I place the movie in full-screen mode with no Unity Dock showing. However, when I ...
1
vote
1answer
77 views

VGA passthrough with QEMU and KVM - Nothing on screen

These last few days I've been trying to set up a windows virtual machine with VGA passthrough, using this guide as my main reference: https://www.pugetsystems.com/labs/articles/Multiheaded-NVIDIA-...
1
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0answers
49 views

Dual Monitor problems

Good Afternoon, I'm running Kubuntu 16.04, and on a Laptop with Nvidia Graphics, and a use an external display. The first time I connected the monitor, everything worked exactly as I wanted, and by ...
0
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0answers
11 views

Cannot configure external monitor

I'm trying to connect my laptop (Dell precision m7510) to an external monitor (Dell U2711), either using DisplayPort, or using the HDMI and to no avail. It appears as though the monitor is recognized,...
0
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1answer
40 views

ubuntu 16.04 doesnot detect second screen while screen is locked

I have Dell E6430 and connecting to it another screen using VGA cable , I installed Ubuntu 16.04 and whenever the screen is locked i must open the screen of the laptop to write the user name and ...
0
votes
0answers
11 views

Using dual monitor with STLab U-1200 usb 3-c to hdmi

I just migrated from Windows to Ubuntu. On windows, I was using dual 27" dell monitors, one connected through an HDMI and the second with a mini docking station usb 3-c to hdmi (stlab u-1200). On ...
2
votes
0answers
29 views

multiple 4k monitors on 16.04, issues

The problem is supporting two external 4k monitors from a notebook that has a built in 4k display. I can run either external 4k monitor from HDMI or mDP just fine on all desktops (Unity, Gnome, Gnome ...
3
votes
6answers
21k views

HDMI connection to external monitor causes laptop screen blackout in 14.04, nvidia graphics

I have had some serious issues with my external monitor and graphics display since installing Ubuntu 14.04, and no one else seems to have had the exact same problem so I figured it best to post here. ...
5
votes
3answers
4k views

After upgrading from13.10 to 14.04 screen on a laptop doesn't work but

First my laptop CPU/GPU is Intel Celeron N2815 (Bay Trail) and I am in dual boot with windows 8. I have upgraded from ubuntu 13.10 to 14.04 today through update manager. And after upgrading and after ...
2
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0answers
80 views

Dual monitors using different Nvidia GPUs not working

In my machine, I have two Nvidia graphics cards. I am running Ubuntu 14.0.4.2 x64. My primary card is a GTX650, and my secondary card is an 8600GT. I would like to have dual monitors, with one ...
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0answers
294 views

Xubuntu 16.04 - second monitor disabled after display sleep

My computer is set not to sleep or lock, but to blank the display after eg 10 mins. I have 2 monitors, which, prior to 16.04, worked as expected - the only noticeable thing was that, for whatever ...
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0answers
11 views

2nd monitor refresh rate not supported?

It's my first time with Linux, so I'm totally noob, but I wanna learn. I have Ubuntu 16.04 installed on my PC (along with Windows 10). My GPU is Radeon HD7850 (not sure what drivers I'm using - stock) ...
1
vote
1answer
31 views

How can I setup 3 monitors so that 2 & 3 are mirrored?

I have an nVidia GeForce GT 730 & am using the nVidia proprietary driver (361.42) on Ubuntu 16.04. I have 2 monitors & a projector. The first monitor maxes out at 1280x1024. The second monitor ...
2
votes
1answer
4k views

Dual Screen will only mirror after 12.04 upgrade

I have been using Ubuntu with a dual screen for years now, after upgrading to 12.04 LTS i cannot get my dual screen working properly Graphics: 01:00.0 VGA compatible controller: Advanced Micro ...
1
vote
1answer
97 views

Dual monitor started to flicker after upgrade to 16.04

I am running dual monitor setup (in mirror mode) on ubuntu. Right after upgrade to 16.04, I am experiencing issues with flickering (image on/off) on second screen (which is LGD LED TV), specifically ...
1
vote
0answers
97 views

Ubuntu 16.04 not detecting the second screen

Ubuntu 16.04 LTS cannot detect the second screen. I connect my PC with to two screens, one from the VGA and the other from DVI-D to VGA. The two screens show exactly the same picture. I tried to set ...
3
votes
2answers
564 views

How can I mirror one of the screens in a 3-monitor setup?

Is it possible to have 2 extended monitors and get the third being a mirror of one of the two extended? I'm pretty sure it's not possible through the interface but it may be possible through ...
0
votes
0answers
35 views

AMD Open Graphics Drivers Issue

I've had to to upgrade to 16.04 as 15.10 is no longer receiving updates however as AMD have not got their drivers ready yet for my graphics card, if they ever will, which is a Radeon 6850 OC, that ...
1
vote
0answers
13 views

How to lock the mouse pointer to one screen?

How can I lock the mouse pointer to one screen in a dual/multiple screen setup? Ideally, I would like to be able to move the pointer from one screen to another only while holding a key (like CTRL). I ...
0
votes
0answers
13 views

Does the usb 3.0 to vga (or dvi or hdmi or even displayport) function work with the new 4.4 kernel?

I've bought a laptop with a nvidia optimus graphics card and I don't want to activate the nvidia profile every time I want to use an external display. So I thought that a usb to vga adapter could be ...
4
votes
2answers
204 views

Ubuntu crashes when setting maximum resolution on external 4K monitor

Problem When attempting to set the resolution of my 4K external display to 3840x2160, the external display loses signal and moments later the entire system hangs. The display is connected to my XPS ...
0
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0answers
52 views

Support setting external monitors for Ubuntu 16.04

I have : Dell Laptop Inspiron 13 - 7000 Series (7353 modal ) Internal Video card : Intel® HD Graphics 520 (Skylake GT2) 2 Dell Monitors - UltraSharp U2414H Dell Docking Station 3.0 - D3100 Ubuntu ...
0
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0answers
33 views

Dual monitor not working

II am using ubuntu 16.04. I have 2 monitors 1 is connected with my nvidia 660ti(23in) through HDMI port and the other one is connected with built-in motherboard (VGA port). after starting ubuntu 2nd ...
0
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2answers
194 views

alt tab doesnt work for citrix xenapp in full screen

Alt+Tab doesn't work when Citrix is in full screen above question is related to 12.04. However, I am using 13.1 citrix xenapp on 14.04 kubuntu and suggestions dont work in this configuration. I ...
2
votes
1answer
59 views

How can I only make a specific screen sleep?

I use my laptop with multiscreen: laptop screen on one side, my TV displaying my media center (Kodi) on the other side. Problem, when I use my media center to watch a movie, the laptop screen never ...
2
votes
3answers
480 views

HP Elitebook 840 G3 Monitor Issue

I have a Elitebook 840 G3 with two external monitors exposed via a docking port. If I have one monitor turned on, everything works great, even removing the PC from the docking port and reconnecting. ...
1
vote
1answer
47 views

14.04, 3 screens in portrait, adjustment to be done each reboot

Every time I reboot my screens are like this, with a space in between them. My xorg.conf file does not get overwritten each time since the content is identical from one boot to the other (xorg.conf ...
2
votes
1answer
48 views

VGA splitter doesn't show two separate screens on ubuntu MATE 15.04

A few days ago I was lucky enough to obtain a free monitor and I decided to buy a VGA splitter to use it with my other screen. The splitter is an Aten VS92A, if it can be useful. The device works ...
0
votes
0answers
6 views

Applications rendering at low resolution

Symptom: Applications are being rendered at 720x1280, but xrandr is showing 1440x2560. (Yes, I have my monitors oriented vertically) User Experience: I opened my laptop lid as it was running on ...