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

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287
votes
12answers
86k views

How do I disable mouse magnet on middle edge with multi monitors?

I use Ubuntu 12.04 on a two screen setup. Multiscreen on 12.04 has generally become much better, but there is one thing that really gets on my nerves: there's a mouse magnet of sorts on the middle ...
111
votes
6answers
75k views

How can I remove duplicate second Unity Launcher on a Dual Screen setup?

See attached image. On my dual screen display I have a Unity Launcher on the left hand screen and also on the right hand screen. Both work perfectly fine. I don't want two Unity Launchers. Every time ...
96
votes
4answers
51k views

Quickly place a window to another screen using only the keyboard

I know that using Alt+F7, I can use the keyboard to move the window around. I can also use the "Grid" plugin of Compiz to position quickly the window around my current monitor. The grid plugin doesn't ...
90
votes
8answers
126k views

How do I setup dual monitors in XFCE?

I've got an laptop with a intel chip, and I'd like to setup dual monitors in Xfce. How do I do this?
59
votes
5answers
41k views

Multiple monitors, multiple workspaces?

I connected my laptop to my LCD. Using the laptop display hotkey I can switch between different modes - only laptop monitor on, only LCD monitor on, both on and display the same view, both on and the ...
38
votes
9answers
52k views

How do you use an android tablet as a second display?

I've noticed people using a product for Windows and Mac called iDisplay which lets you use your Android or iPad as a secondary display. This seems like a great idea, and something that could be done ...
38
votes
2answers
26k views

Is it possible to have two different DPI configurations for two different screens?

I'm using Ubuntu 12.04.3 with NVidia drivers (319) for my Quadro K2100M graphic card, and when I switch my main 3200x1800 laptop screen to mode 1920x1080 (using nvidia-settings), the display goes ...
38
votes
5answers
15k views

How does Unity work in multi-monitor configurations?

Unity in 10.10 appeared to be focused around single monitor configurations with a single tasking workflow. This works quite well on a netbook which has limited screen real estate. How does the ...
32
votes
8answers
54k views

How to make YouTube fullscreen actually fullscreen?

Whenever (using flash) I make YouTube videos fullscreen then they come out not actually any bigger. In the screenshot below you see exactly what I see when watching a video in fullscreen mode. All ...
32
votes
3answers
41k views

Multi display issue with Ubuntu GNOME 14.04 [closed]

Fresh install of Ubuntu GNOME 14.04 with 3 displays (fglrx driver). I can correct the screens order in System Settings / Display but it is not saved when I close the session and reopen it. Screens ...
28
votes
6answers
44k views

How to tell Xubuntu not to clone but to expand the laptop display to the external one?

I went to the Settingsmanager and selected Display. The external display was listed there. So I selected Use this output (see Screenshot) and after hitting apply the notebook screen was cloned to the ...
28
votes
7answers
39k views

Dual monitor applications opening on wrong monitor

I am new to ubuntu, been using it for about a month now. I created this desktop for myth tv, and so i use a dual monitor configuration(one monitor for watching shows, and one for everything else). But ...
26
votes
4answers
31k views

Permanantly set monitor as primary

I am running Ubuntu 12.04 (beta) with a triple head setup and GNOME 3 desktop (ie "GNOME" selected not "Ubuntu" at login screen). It seems that it handles multiple monitors by blessing one monitor to ...
23
votes
12answers
28k views

Is there any ability to set my primary monitor?

I want my primary display be at the right and my TV (additional) be at the left. In that case new windows shall appear at the TV. Can I somehow set where new windows will appear ?
23
votes
12answers
34k views

How to select in what monitor youtube fullscreens?

I have a dual monitor set-up. When I'm at YouTube, and I click the fullscreen-icon, the fullscreen automatically goes to the second window. How do I get it to go fullscreen on my main monitor?
22
votes
1answer
19k views

The selected configuration for displays could not be applied

Just installed 11.10 64bit and followed this guide to install the latest drivers for my Radeon HD 4870. I have a 24" and a 17" side by side. The larger screen is turned on by default, but the smaller ...
22
votes
1answer
8k views

How do I get three monitors working with Nvidia?

My workstation has two Geforce 7300GTs and three monitors, and I'd like to put them to good use. Dual monitors works out of the box, but triple doesn't. How can I get the third monitor up and going ...
21
votes
4answers
29k views

Multi screen problems “virtual size does not fit available size”

I recently upgraded to 11.04 beta 2 and everything works just like clockwork, but now I’ve run into multi screen issues :/ at first it worked but then a installed the proprietary drivers (I think this ...
20
votes
2answers
15k views

Send or Move a window from one monitor to another with a shortcut key under Ubuntu 12.04 and nvidia 8600 GT without proprietary nvidia drivers

I would like to know how to send or move a window from one monitor to another with a shortcut key under Ubuntu 12.04 and nvidia 8600 GT without proprietary nvidia drivers. Now, I know I can configure ...
19
votes
1answer
10k views

Personalize monitor position before login

I'm using multiple monitors. When logged in everything I fine. Left monitor is positioned left and right monitor is positioned right, but before I login the login screen positions them the other way ...
19
votes
3answers
5k views

notify-osd and dual monitors

I use Ubuntu 10.10 on a laptop, with an external monitor, which is used as the primary. Notify-osd alerts show on the connected monitor, as I want. However, some days ago I removed both gnome panels ...
19
votes
5answers
44k views

How to reset monitor settings to default through terminal?

I have a tricky problem regarding multiple monitors on KDE (Kubuntu). I have a laptop which, at home, is connected to two monitors - VGA and HDMI. That works only when the built-in laptop display is ...
19
votes
2answers
6k views

How to maximise a window across two monitors?

It's easy to maximise windows on a single monitor (press the maximise button, or drag the window titlebar to the top of the screen). How can I maximise a window so that it takes up two screens?
18
votes
5answers
38k views

How to span single wallpaper over dual monitors?

I have dual monitor set up in Ubuntu 11.10. I want to have a single wallpaper spanned across both monitors. How do I do this?
18
votes
3answers
10k views

How can I make notifications appear on a specific monitor?

In my Ubuntu 12.04, I have two monitors: left is the laptop and the right one is an external and big monitor. My vision is generally focused on the laptop monitor, but the notifications appears in the ...
18
votes
2answers
16k views

Is there a Unity / Compiz shortcut key to move a window to your other monitor (not workspace)? [duplicate]

Possible Duplicate: Quickly place a window to another screen using only the keyboard Sort of like CTRL+ALT+SHIFT+Arrow but only to my other monitor, not to a completely separate workspace.
18
votes
3answers
5k views

Switch workspaces individually on each monitor

In 12.04 with a two monitor setup (using unity and compiz), is it possible to switch workspaces individually for each monitor?
18
votes
1answer
8k views

Can I set up 2 monitors to be 2 separate Gnome virtual desktops instead of one big?

If I plug an external CRT to my laptop, it normally either displays the same picture as the laptop's panel, or extends the desktop area. But I'd like it to be a separate virtual desktop (a workspace, ...
17
votes
3answers
9k views

How can I make gnome-shell treat both monitors in the same way?

Gnome-shell seems to like to leave one monitor as "fixed" when you switch workspaces. Additionally, there is no preview in the Activities view of my secondary monitor. Also, on the second monitor, ...
17
votes
2answers
44k views

How can I set up dual monitor display with ATI driver?

I have 11.10 running on a system76 laptop. without the proprietary driver i was able to set up a second monitor (samsung 19") with extended display. when i activate the proprietary driver, the only ...
16
votes
2answers
10k views

xmonad dual monitors

I have been giving the window manager Xmonad a try for a few days now on Ubuntu 11.04. I like it a lot but i just set up a second monitor and haven't found the way to configure Xmonad properly for ...
16
votes
2answers
9k views

.xsession. .xinitrc, xmonad, and lightdm

Let me preface my question with the following: I am pretty sure that I can hack together a solution by modifying /usr/share/xsessions/somesessionfile.desktop and make it run /etc/X11/Xsession, and get ...
16
votes
3answers
7k views

Dual monitor alignment on Ubuntu 12.04

I'm running Ubuntu 12.04 on a laptop on a docking station with dual monitors (both of them external) set up as shown below (where monitor 1 is primary, and where monitor 2 has been rotated 90 degrees)....
15
votes
3answers
13k views

Open new windows on main screen in KDE two-screen setup

I am using KDE (with Kwin) on two screens. Often when I run a new application the new window shows on the second screen eventhough the mouse as well as the active window is on the main screen. How can ...
15
votes
3answers
35k views

How do I list connected displays using the command line?

Is there a command that will list displays connected to the computer? Specifically, I'm looking to find out how my external monitor is being detected by the system when connected by HDMI cable and ...
15
votes
5answers
30k views

How do I get HDMI output working on a Dell XPS 15 L502x?

Recently I've bought my dream's notebook, a Dell XPS 15 but since then this dream became a kind of endless nightmare. I'm almost getting crazy to make my graphic card driver work properly, but it ...
15
votes
2answers
657 views

How can I put the Launcher on the other display?

When I plug an external monitor into my laptop, the laptop screen is still considered my primary display. Since my laptop is on the right of my external monitor, I now have the Launcher sort of "in ...
15
votes
8answers
7k views

Mouse flickering on one of my two screens

I just installed ubuntu 14.04 and the mouse is now flickering on one of my two screens. The other screen doesn't have any flickering. I was previously using ubunutu 13.10 without any issue. If I ...
15
votes
3answers
6k views

How to set default xrandr settings?

I'm trying to enable dual monitors in Ubuntu. This is working fine, but every time I do it, desktop effects is disabled. I think I've found the reason why, though: https://wiki.ubuntu.com/X/Config/...
14
votes
2answers
1k views

Use one monitor as multiple monitors

It is nice to use multiple monitors for developers. You can maximise each window in a specific monitor, windows can stick to corners of specific monitors. There are ultrawide monitors in the market (...
14
votes
8answers
9k 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 ...
13
votes
6answers
30k views

How do I set up a second display via DVI/viewport with a Lenovo T420S?

My Lenovo T420S has a discrete graphic card with nvidia optimus technology. What I'm basically trying to achieve is the following: use a second display - connected via DVI/viewport - at work (VGA is ...
13
votes
2answers
14k views

Can't set a higher screen resolution in a external display in a Dell Mini 10v laptop

I have a 22'' display from HP (w2207h) connected to my laptop (a Dell Mini 10v or 1011) through a VGA switch (a share this screen with a desktop computer and a Nintendo Wii). My problem is that I can'...
13
votes
1answer
23k views

list existing X display names?

How do I get a list of current X display names? Apart from being a useful thing to know, I want this so that (hopefully!) I can use xcalib -invert -alter as suggested in this question to invert the ...
13
votes
3answers
35k views

How to enable monitor from terminal?

I accidentally disabled my monitors, so when I log in I land on a blank, back-lit screen. I can open terminals with Ctrl+Alt+F#, so how do I enable the monitor from terminal? I tried xrandr, but it ...
13
votes
3answers
28k views

Nvidia dual monitor configuration gets lost every time I reboot

I've recently updated (well, borked then completely reinstalled) to 12.04. I'm running a dual monitor setup, with a Dell U2410 / Dell 2007WFP combination on an HP Elite Book 8560W. The graphics card ...
13
votes
1answer
1k views

Laptop freezes after connecting external monitor, since 16.04 update

I have a Zenbook UX303U with integrated Intel HD5000, and using an external monitor worked fine until I updated to Ubuntu 16.04LTS this weekend. Now, when I plug my second screen and then move the ...
13
votes
6answers
12k views

Force gdm login screen to the primary monitor

I have two monitors attached to my video card. Primary monitor has a resolution equal to 1280x1024 and the second has 1920x1200. My gdm login screen always appears on the second monitor even if it is ...
13
votes
2answers
2k views

Is there a dynamic-multiple-monitor friendly desktop environment available for Ubuntu?

I use a laptop and like to migrate during the day from one (physical) workplace to another and connect to an external monitor if available. I also must multitask a lot, so I have a lot of windows ...
12
votes
3answers
7k views

Can I control brightness on second monitor?

I have a thinkpad (x301) with an external monitor connected via a DisplayPort to HDMI cable. I can control the brightness of the laptop monitor using the keys on the laptop, but I can't work out how ...