Questions that relate to the electronic display (sometimes called a visual display unit) for computers. Typically questions relate to visual issues such as flickering, resolution, black-screens together with the usage of single and multiple displays.

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1answer
395 views

HDMI ports stopped working on 14.04 updates

Situation is that my zotac box only has an hdmi port for the monitor, so this problem is hard to trouble shoot. If I load the original 14.04 LTS on the zotac box I full monitor capabilities through ...
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1answer
868 views

nagios NRPE CHECK_NRPE: Socket timeout after 10 seconds

Getting following error on nagios server root@VMb:/usr/local/nagios/libexec# ./check_nrpe -H 54.255.1.99 -n CHECK_NRPE: Socket timeout after 10 seconds.
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1answer
1k views

Wrong resolution on ubuntu 14.04

I have installed Ubuntu 14.04 LTS on my system. My graphics card is an NVidia 8800GTS. For some reason ubuntu detect that my screen resolution is up to 1024x1280. I have already installed the NVidia ...
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1answer
160 views

Connecting and controlling my desktop with my laptop monitor using ubuntu.

I would like to know how to use my laptop as a monitor for my desktop. my laptop is running windows 7 and my desktop is running ubuntu 13.10. i do not have a monitor for the desktop. Thank you.
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1answer
136 views

Dual monitors on different graphics inputs?

Here's my dilemma, I was just running Windows and to run both of my monitors, my secondary monitor was running off of my integrated chip. In my BIOS I set the boot up graphics device to be the ...
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1answer
343 views

Lubuntu VM - how to make external monitor on left side of primary monitor

I am using lubuntu as a virtual machine and my host OS is windows 8 and I connected an external monitor and it is to the right of my primary monitor. How do I change it so that it is to the left of my ...
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1answer
33 views

Blanking screen @ 30 Second intervals for no apparent reason

My screen keeps blanking at 30 seconds if nothing is touched or moved. It seems to have started after a recent update. I have tried changing screen-saver settings, xset values, and installing ...
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1answer
456 views

How to start a program always on second monitor

I tried to google and to browse/search the questions but with no luck. I have xubuntu 12.10 installed and extended desktop is working great (intel display driver). The problem is that I want to start ...
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1answer
227 views

Connect monitor to headless server

I've inherited a server running on Ubuntu which has a keyboard connected, but no monitor. Now there's been a network problem and I'm currently unable to connect via ssh (not even ping works). Still, ...
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1answer
745 views

Screen flickers with Nvidia GPU

When I install the Nvidia driver (have tried both current and post-release current) the monitor flickers every time I open a new window/program such as Firefox. I don't know what else I'm going to do? ...
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1answer
1k views

configure modeline Ubuntu 12.04

I am running Ubuntu 12.04.2 in dual boot with Windows 7 on the same drive. In Windows, I customize my refresh rate for my 2nd monitor with the program powerstrip. When I export my Linux modeline and ...
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1answer
791 views

Run without monitor in 12.10

Yes I know this question is out there but none of the answers work for me like the ones found here and here. I have Ubuntu version 12.10 32bit. It's a fresh install. Only software installed is ...
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1answer
1k views

Switchable nvidia GT 540m HDMI output Problem

I have bought a Alienware m11xr3 with nvidia GT 540m and a internal graphic card. uname -r 3.2.0-33-generic-pae here is the lspci | grep VGA output: lspci | grep VGA 00:02.0 VGA compatible ...
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1answer
1k views

Refresh rate revert on 60 Hz on reboot

I just installed Ubuntu 12.04 (upgrade from 11.10) and when I change monitor refresh rate everything is ok, until reboot, on reboot my refresh rate revert to 60 Hz. I found similar threads on Ask ...
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1answer
139 views

Ubuntu only working with second monitor

I'm using the try ubuntu selection from my ubuntu cd. For some reason, the screen on my laptop is completely black. Only when I hook to my second monitor does ubuntu show up, and then, its only on ...
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1answer
138 views

Weird error (bug?) on my screen

I've got a problem. Here is my laptop spec : Type: ASUS A43E-VX389D Video Card: Intel HD Graphic Memory: 2 GB DDR3 Processor: Intel B950 ( 2.1 GHz, 2MB L3 cache ) I'm using Ubuntu Precise ...
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1answer
1k views

how to make external monitor primary (xubuntu)

I am using Xubuntu 12.04 and I want to use my 24" monitor as a secondary display. Ok! First Try: Going to the Settings Manager --> display and searched for the secondary display to enable it. But ...
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1answer
2k views

Facing unity problems after upgrading to Ubuntu 12.04

I upgraded to 12.04 and had problems with unity. So this is what I did >> 1) Ctrl+Alt+F1 sudo apt-get install compizconfig-settings-manager Export DISPLAY=:0 ccsm 2) Ctrl+Alt+F7 3) Enabled ...
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1answer
664 views

Ubuntu 11.10 Black Screen

This is my current specs: Operating System: Windows 7 x64 CPU: Intel Core i7 920 @ 2.67GHz Bloomfield 45nm Technology RAM: 6.00 GB Tripple-Channel DDR3 @539MHz (8-8-8-20) ...
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1answer
21 views

How to choose monitor resolution that isn't showing up in “Display” Settings dialog

After installing Ubuntu 15.04, I can no longer find my monitor's native resolution in the Display Settings dialog. I can only select the modes "1024x768" and "800x600". How can I fix this?
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1answer
34 views

Monitor goes black

Just installed 14.04 on my computer and after I solved my core-heating-problem, the new problem is that after 1 minute on desktop, either doing things or not - the monitor goes black.. No time to ...
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1answer
47 views

Refresh rate won't accep 120 hz

I can't get my monitor to set the refresh to 120hz. I'm using an nvidia gtx 970. The outputs are below (I'm using a 120 hz monitor & I was able to set it to 120hz in Ubuntu 15.04 when using an AMD ...
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1answer
36 views

Tried Ubdating Kernel; Now, Desktop won't load on startup

I get a blank black screen and a message that says "could not apply the stored configuration for monitors required virtual size does not fit available size" and says it can't use 3840xy and it's ...
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1answer
47 views

When I turn the monitor on, I get an “input out of range”, how do I fix this?

My computer was working fine a few days ago but now when I turn it on it displays: input out of range I don’t know what the problem is and have tried unplugging and plugging all the cords but it ...
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1answer
142 views

How can I make xubuntu ignore DisplayPort monitor being turned off?

I have a desktop machine (Dell T5600) with an Nvidia graphics card (Quadro 2000), and two monitors (Dell 24"), and I'm running xubuntu 14.04. If I switch off a monitor connected with DisplayPort, ...
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1answer
166 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
253 views

Samsung SyncMaster 2033 Monitor Not working properly

I have a samsung sync master 2033 Monitor with a resolution of 1600x900 px. A few days earlier Ubuntu started behaving absurdly, It didn't recognise the monitor and now I'm stuck with 1024x768 px ...
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1answer
109 views

Issue with plugging monitor on my laptop

I have a dell monitor (DELL E1913) plugged on my laptop (Dell XPS 13 developer edition, ubuntu 14.10). I have a mini display port - DVI adapter connected on my laptop, this adapter is plugged on the ...
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1answer
187 views

Use LG 24" LED TV as Primary monitor

I have a tv that has HDMI input, and a computer with VGA output. (Computer is a Dell Optiplex 360) I have scoured every related question to this forum and have not been successful in my attempt to ...
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1answer
86 views

monitor outgoing email

I have a VPS and recently I found some unusual activity looking at the /var/log/mail.log and so I installed pflogsumm to send a daily report and got this: Per-Day Traffic Summary date ...
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1answer
50 views

Monitor switches off and won't come back!

I have Lubuntu 14.04 running on a Sony VAIO VGN-FZ140E. My problems is: out of nowhere my monitor turns off, and no matter what I hit on the keyboard it doesn't come back. The only solution is to put ...
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1answer
361 views

HDMI stops working with my new Acer aspire E3-112

I bourght a new Acer Aspire E3-112. I use external screens both at home and at work. After installing Ubuntu everyting worked. I used it at home and at work. The second day when I got home the ...
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1answer
47 views

New to Ubuntu, got a few problems

So I built myself a lovely new computer, and decided to give ubuntu a go. So far, I'm confused. A quick google search left me with a headache. So here are my problems. Keep in mind that I'm ...
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1answer
292 views

Ubuntu 14.04,NVIDIA Corporation GF108M [NVS 5400M] laptop monitor problem

I am having a problem with making the laptop monitor work with the latest ubuntu. I am using optimus on lenovo t430 at the moment and when I try to activate the laptop monitor I get an extended ...
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1answer
451 views

external HDMI monitor turns off after a few minutes

When connecting my 14.04 ubuntu laptop with HDMI to my TV, the image is turned off after a few minutes, even when connected to the power. I then move the mouse and the image returns. How can I prevent ...
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1answer
31 views

Troubleshooting refresh rate

I have been having problems with my refresh rate and it's recommended and default rate is 60ghz. It keeps flickering at every rate I put it. Does anyone have ideas how to resolve this? thank you
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1answer
1k 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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1answer
95 views

refresh rate on CRT monitor

So, I've got a geForce 650 Ti Boost, on a CRT monitor. My ubuntu is the latest, and I use Nvidias propietary driver. I've tried all the things that I know of to set my refresh rate to 85 hz. I'ts a ...
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1answer
552 views

How to change Monitor of ubuntu box Also 'Out of Frequency ' Error due to monitor change

I have find very odd and crude solution to this entire episode. It is as follows Start installing ubuntu as usual. Switch off the monitor Wait for some time (1-2 minutes) till the HDD access stops ...
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1answer
357 views

Getting launcher on dual monitors

I recently bought a second monitor for my computer. Setting it up was fairly easy, but when I turned the monitor I found that the unity launcher bar that is on the right monitor did not transfer over ...
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1answer
319 views

How do I set up my dual monitors? My config folder does not have monitors.xml in ubuntu 12.04

I tried creating a monitors.xml in config folder using gedit and just saved it there. rebooted but doesn't work. I am trying this link. http://www.sudo-juice.com/dual-monitor-settings-in-ubuntu/ But ...
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1answer
955 views

How can I calibrate colors?

In System Settings -> Colors there is color panel but "calibrate" button is grey and I am unable to calibrate it by myself.
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1answer
63 views

Xubuntu Monitor issue

I did a presentation with my laptop with an external monitor (using latest Xubuntu). After the end of the presentation my laptop ran out of battery. When I got home an logged in again, I had only a ...
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1answer
93 views

Ubuntu 12.04 LTS monitor with lower resolution

I have monitor with possible resolution 1920x1080 (on windows) and I have installed Ubuntu 12.04 LTS. The posssible resolution there:1440x900. How to change resolution to proper one? I installed ...
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1answer
712 views

get-edid always fails, yet ubuntu detects monitor make/model in system settings

I am trying to writer some scripts to detect what monitor is plugged in and when. I am not sure if I am going down the correct path, but I notice that no matter what I do trying to use 'get-edid' ...
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1answer
732 views

How do I get a Dell U2414H monitor and Nvidia NVS300 working?

I can't get Ubuntu 12.04 LTS to run xwindows in my monitors native resolution. I have a Dell U2414H monitor and NVIDIA NVS 300 video card. I am connected via a Single Link DVI to HDMI cable. When I ...
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1answer
651 views

Lubuntu dual monitor doesn't save config

I'm using Lubuntu and I have a external monitor (connected using HDMI) to my laptop. Everytime I enter on Lubuntu, both laptop and Monitor are turned on. What I do: I go to Menu > Preferences > ...
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1answer
187 views

Get Ubuntu to NOT move windows when turning off one of multiple monitors

I have a triple monitor setup and it works very well with 13.10. However, I have some problems with the way Ubuntu moves windows around when turning off a monitor. For instance, when I want to watch ...
0
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1answer
165 views

Display configuration messed up

I have a laptop and an external monitor. I can set the correct resolution for both of them, however, after some time configuration messes up: resolutions get swapped and display mirroring turns on. ...
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1answer
71 views

unknown monitor

I hope to find a way to solve a problem about the displays: I have only the built-in display, and nothing else attached, but, in the settings,the system finds also another display, which is unknown. ...