Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)

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Configuring two sets of mirrored displays

I'm trying to configure several Ubuntu 14.04 desktop workstations, each of which has a total of 4 monitors. I would like to configure them so that there are 2 independent screens, each of which is ...
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44 views

Ubuntu won't detect an external monitor at all

I am running Ubuntu on an ASUS laptop and when I try to plug in my monitor, the monitor will turn on and display no signal. When I go to display settings it will never show my monitor no matter how ...
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1answer
41 views

How to detect the vga signals [closed]

I am currently working on Ubuntu 12.10. We have functionality as we have two cameras (say left and right cams) for recording the videos which creates two different streams as stream-1 and stream-2. ...
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1answer
59 views

How do I use multiple laptops as external display over network?

I have a relatively powerful computer (8gb ram, 64bit, quad core) and I can easily drive three monitors, my tv over hdmi, my 17 inch hd internal laptop display, and an external hd display. I have ...
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1answer
73 views

Dual-monitor setup; one monitor changes to low resolution

Dear AskUbuntu Community, I am using Ubuntu 13.10 at work with dual-monitor display. One has 1920x1080 resolution and the other 2560x1440 (main), the graphics card is Radeon 7570 1GB. The main high ...
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34 views

Display issue on PowerBook G4 running 10.4

I today I installed Ubuntu 10.4 on my 13in PowerBook G4 from a live CD. When I first booted from the CD I had no problems. I clicked Install Ubuntu and went through the process normally. When I ...
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19 views

Recent Update to 12.04LTS messed up desktop.

After a recent update on a VMware virtual machine, the desktop duplicating the images on the left hand side of the desktop on the right hand side. The right hand images do not respond to the mouse but ...
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0answers
57 views

Custom resolution doesn't add to display

I'm trying to add custom resolution to display, but it won't add. What I've tried so far : 1-firstly see my current resolutuins $ xrandr The output : Screen 0: minimum 8 x 8, current 1024 x 768, ...
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0answers
67 views

Can't change monitor to native resolution

I'm using a laptop running ubuntu 14.04 LTE, and I have secondary monitor LG Flatron M197WD, which according to the lg website can run in a 1366x768 resolution. This mode didn't show up in either the ...
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0answers
63 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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0answers
20 views

Launching Firefox leads to display issues

I've just installed Ubuntu 14.04 for the first time. I'm using a PC Chips motherboard, AMD 64 bit processor with 2 gigs of RAM. After logging in I see the desktop, but when I open Firefox I get a ...
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0answers
141 views

Two monitors, two DP-connectors, Ubuntu sees those as one

I have a IBM ThinkPad in a dockingstation. Attached are two monitors (default resolution: 1920x1200) via two DisplayPort connectors. The laptop have Nvidia/Intel chipset, but I only using Intel. ...
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0answers
39 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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1answer
596 views

Flux for ubuntu 14.04 - possible?

Is it possible to make Flux work in ubuntu 14.04? If so, maybe you can share your knowledge or point me to a guide? (Flux is software which adjusts temperature of your display according to time of the ...
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1answer
271 views

Ubuntu 14.04 Unknown Display, nvidia graphics

I tried the @Golboth solution in this thread. Worked sometimes, it has an intermittent behavior, sometimes work, most of times doesn't work. Installed Nvidia drivers, Ubuntu detects the Graphics : ...
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1answer
15 views

Why does Ubuntu either detect the size of hosting OS window or not?

I have installed Ubuntu 12.04.4 under Oracle Virtual Box 4.3.12 and found that Ubuntu sometimes detects the size of hosting windows and sometimes not. I want it always detects. How to ensure this?
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1answer
54 views

Problems with the drivers, mouse and display

I have installed Ubuntu 14.04 alongside windows 8 in my laptop. These are the issues I am facing after the installation: 1- I am not able to change the brightness of the screen. 2- The cursor keeps ...
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0answers
45 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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1answer
39 views

What is causing my my screen to go black?

I have this Ubuntu (12.04.4) netbook hooked up to a 55" screen to display slides and info. It was running fine for quite a while and was set up not to go to screen saver or anything. I think there was ...
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0answers
290 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
382 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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1answer
37 views

I have a problem with my desktop [duplicate]

There's something wrong with my desktop. Yesterday, I was using my laptop (Toshiba Satellite L655) as usual. I have Ubuntu 14.04 LTS installed, and everything was ok. I never had any problem before. ...
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20 views

Compiz got removed by chance and ubuntu dashboard and other features are not working.(Ubuntu 14.04)

I tried the following getting compiz back after removing ccsm gives me an error like no module named pygtk I tried this as well Can't start unity from command line Tried this as well ...
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0answers
54 views

Blank screen while booting Ubuntu server 14.04 on Atom N2600

I just bought a Jetway computer with 2GB ram and 60GB SSD. It is intended to be used as firewall and I installed Ubuntu server 14.04 32bit on it without any problem. Booting starts perfectly with ...
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3answers
329 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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1answer
75 views

Automatic display detection not working correctly anymore on Ubuntu 14.04 LTS

Is there a way to check history of all updates automatically installed by "Software & Updates"? Today after updating some packages, automatic detection of connected displays was somehow ...
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0answers
30 views

Ubuntu 14.04 gui not working after login [duplicate]

Yesterday I update ubuntu 14.04. It asked to restart the pc, after restarting it and logging into my account, only wallpaper is displayed. I tried the following by pressing ctrl+alt+f1 : sudo apt-get ...
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0answers
50 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
32 views

Multiple unity bars on 1 display since software update (ubuntu 14.04)

I am a new user of Linux (Ubuntu 14.04 LTS 64-bits, in a virtual machine under VMware Player 6.0.2 build-1744117 running in Windows 7 64-bits). Everything was working fine, but yesterday, I made a ...
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1answer
130 views

No TTY after installing NVIDIA Driver

When I first installed Ubuntu 14.04, I used the command line to install the nvidia drivers to my computer. Now, if I try to open any of the 6 TTYs, I lose all display and my monitor cuts off until I ...
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0answers
69 views

Gnome problem with 14.04

I got an install of 14.04 Server on my VPS. I then installed the GUI with: sudo apt-get install ubuntu-desktop, then installed VNC with vnc4server. Now I have this really, bugged gray screen instead ...
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53 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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0answers
26 views

Opening Firefox on second display at startup

I have attached two monitos: 1 dvi (primary) 1 HDMI. I have added this at startup app list to load Firefox at bootup: firefox -P TV -url "http://mylocaldom.com" -no-remote This is the output of ...
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1answer
44 views

Can't see desktop

I tried to remove the guest account following the instructions on this page Removing Guest Session at login in Ubuntu 14.04 I followed the steps and then restarted the laptop. As usual the Lenovo ...
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0answers
116 views

Ubuntu on VMware Fusion resolution not changeable from 800x600

On Ubuntu in "Systems Setting" --> "Display", I only see 800x600 resolution option. As I change the size of the VM window, it just expands/shrink accordingly, maintaining the same ratio (800x600) that ...
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0answers
42 views

Desktop won't display properly on monitor (VGA)

It flickered a lot during the 12.04 LTS install (it was still usable though), and the login screen is fine. But as soon as I log in, the desktop doesn't display properly, all I see is a black screen ...
2
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2answers
238 views

Display bug on resolution > 800 / ubuntu 14 on VMware

I moved a VM to a laptop (1366x768). Now I have a problem with the resolution. Everything is ok on 800x600. If I change the resolution to something higher than 800 (eg: 1024x768..), then, ...
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0answers
59 views

Lubuntu: my screen needs a serious reset

I am building my own custom Lubuntu (based on lubuntu-14.04-desktop-i386.iso) system image under VMware 8. It works fine, except the system a nasty tendency of screwing up the display IF I relogin ...
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0answers
20 views

$DISPLAY environment variable changes upon (almost) every reboot

I am facing a very strange problem. I have a one display connected to my PC. However the $DISPLAY variable changes almost every time I reboot. For now it is :0.0, but before reboot it was :1.0. There ...
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0answers
12 views

How can I affect the whole screen?

Some background: I sometimes have things that I need to do at regular intervals (e.g. every half hour) or schedule for a time in the future, and I need some way to alert me. I find that small alarms ...
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0answers
57 views

How can I change power settings automatically while running VLC in Xubuntu 14.04 64 bit

I am using Xubuntu 14.04 64 bit. I usually play video using VLC media player. The problem I am having is, after 10 or 15 minutes computer turn off its display, even the video is running in the ...
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1answer
19 views

Monitor Out of frequency when installing os from DVD

I am trying to install Ubuntu 14.04 on my friend's PC which has CRT 14" LG monitor but When it boots form DVD, I am getting following error: Also when Using option "Try Ubuntu", Getting same error! ...
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1answer
223 views

Trying to install Ubuntu 14.04, monitor says mode unsupported/out of range [duplicate]

Monitor says mode unsupported/out of range during installation of ubuntu 14.04 and never boots to the ubuntu desktop.
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24 views

How to enable the Mirror Displays checkbox.It always disabled

who can help me and what information could I give?
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0answers
13 views

Login screen not showing after connincting to a bigger display ( a monitor )!

So, I have ubuntu 12.04 lts on my laptop and I got a new monitor so I connected the monitor to the laptop to get a bigger display but the login screen won't show. Can anyone tell me how do I fix this? ...
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1answer
68 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 ...
0
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1answer
68 views

When will ubuntu fully support high resolution displays

I've tried tinkering with font sizes in the unity-tweak-tool and changing the scale in the display but have been unable to find a workable solution. Will there be proper support for this in the ...
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0answers
76 views

Recent patch to 14.04LTS messed up screen display (Ubuntu in VMware Player) [duplicate]

Ubuntu 14.04 LTS under VMware player. Was up to date on patches, few days ago Ubuntu wanted more patches, I let it do it. After reboot, login works ok, then screen switches and displays three copies ...
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1answer
508 views

Display Problems running Ubuntu 12.04 in Windows VMware Player

I am posting this again because I have changed to VMWare Player and I discovered something new. I am running Ubuntu 12.04 LTS (Guest) in VMWare Player 6.0.2 on Windows 7 64-bit Host. I have VMWare ...