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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5
votes
5answers
8k views

Second Screen is Rotated in a dual monitor setup

I have a laptop connected to a second monitor using a vga port. No proprietary drivers used. When I go to System Preferences --> Monitor and I turn that on it doesn't look as it should, and it's ...
1
vote
0answers
8 views

Monitor not booting up with PC - Ubuntu 14.04

I've recently made the conversion from windows 7 to ubuntu 14.04 and loving it! ...Until this morning when I've tried to boot up my computer which seems to be booting fine, but my monitor is ...
0
votes
1answer
13 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
0
votes
0answers
8 views

No signal on Monitor

I'm getting a "no signal" on monitor. the system was still running when the monitor crashed with this error message. Checked cables and all are hooked up.
0
votes
1answer
142 views

QNIX Nvidia Display Issue with 331 Driver and 770

Upon trying to get my ubuntu 13.10 installation working on my new computer, I encountered an issue with the proprietary nvidia drivers and my display. Apparently, the two don't agree with each other ...
1
vote
0answers
27 views

Mirroring screen -> resolution problem

I have a ASUS N53S laptop, it has a 1920*1080 resolution build in screen. If it matters: GPU is Nvidia GeForce GT 550M. It has a VGA port which I don't/rarely use and a HDMI port. In my HDMI port I ...
4
votes
0answers
56 views

how to install ubuntu on a computer without using a monitor? [duplicate]

I have a computer but with no available screen, how can I install Ubuntu server on it using a laptop I have, I can't format the hard drive in another computer and buying a new monitor is not an option ...
0
votes
1answer
47 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 ...
1
vote
1answer
190 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 ...
0
votes
1answer
111 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 ...
1
vote
0answers
12 views

Can't change brightness after disconnecting second monitor

When I boot up with 2 monitors, or when I connect the second monitor to my laptop, I can change brightness of the laptop screen in the usual sense. After disconnecting the second monitor, when I ...
0
votes
0answers
15 views

Turn off display on lock screen?

In ubuntu 12.04 running gnome I had the shortcut to turn on/off the display with Esc key on lock screen. Now running Ubuntu Studio 14.04 with xfce4. There is no such feature. Any way to add it? Maybe ...
3
votes
1answer
189 views

How do I enable 60hz on my 4k monitor?

I have the very new Asus PB287Q 4K monitor and I've enabled display port 1.2 in its OSD menu system, but my Ubuntu 14.04 laptop still isn't using 3840x2160 at 60hz - it's stuck at 30hz. I'm curious ...
2
votes
1answer
3k views

Correct Display configuration. Errors while trying to arrange displays

I am trying to set up my tv with my laptop trough a VGA cable. The display application in Ubuntu throws a lot of errors to me and I have given up in trying to do it myself. I try to apply the 1920 ...
1
vote
2answers
445 views

Best practice to monitor Ubuntu Server

I have an Ubuntu Server that is intermittently rebooting. I notice the reboot once every 3 weeks or so. I have a feeling that this is occurring more often and I want to get an accurate picture of the ...
13
votes
4answers
35k views

How to change the monitor's refresh rate?

How do I change the monitor's refresh rate in Oneiric? There is no option to do it in the Displays dialog now. By default it's 60Hz, but I need 75Hz on my monitor. In previous releases there used ...
3
votes
3answers
686 views

Ubuntu 14.04 - Add Fake Display when No Monitor is Plugged In

I have an Ubuntu 14.04 server that has no external monitor connected. I use NoMachine to remote control the machine. When I do so, the Unity/Gnome interface doesn't see any monitors connected, so I ...
0
votes
2answers
37 views

Second monitor recognized but only black screen

I am running 12.04 on a Toshiba Portege laptop. The graphics card is an Intel 945GM/GMS. The 2nd monitor is an Asus (Ancor Communications 22"). When I connect the monitor to the computer the monitor ...
1
vote
1answer
4k views

How to set the monitor to its native resolution when xrandr approach isn't working?

I am trying to setup my Samsung syncmaster B2030 monitor in ubuntu 12.04. It's native resolution is 1600x900 which I am not getting in ubuntu and which I am trying to get. I tried using xrandr ...
0
votes
0answers
46 views

Setting the monitor resolution in Lubuntu 14.04

I would like to enquire on how to change the monitor resolution in Lubuntu 14.04 in a permanent manner. The monitor settings under Preferences in the menu does not do the trick. When I say I want to ...
3
votes
2answers
56 views

nagios nrpe dameon check_nrpe plugin missing

I installed nagios nrpe on a remote machine from Ubuntu repository sudo apt-get install nagios-nrpe-server , and plugins with: sudo apt-get install nagios-plugins-basic nagios-plugins ...
1
vote
0answers
38 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.
20
votes
2answers
18k views

How to set the monitor to its native resolution which is not listed in the resolutions list?

After installing Ubuntu 10.04 with my Samsung SyncMaster B2030, native resolution (1600X900) is not found in the list of resolutions.
0
votes
0answers
10 views

failed to load monitor configuration after Ubuntu (12.04LTS) update

I've updated my Ubuntu 12.04LTS and after restarting machin, now I see this error on startup: and when try to download nvidia driver from here: I see this error: i'm beginner, please help !
1
vote
1answer
129 views

Monitor not turning off in 14.04

I have a freshly installed ubuntu 14.04. In settings "Brightness and locking" I had the following Settings: Turn monitor off after "10 Minutes" Locking: On Monitor locking after "5 ...
11
votes
2answers
16k views

How can I get a DisplayLink USB monitor under Ubuntu (any recent version)?

I have a DisplayLink-based external USB monitor, which has both power and data over USB, and seems to work perfectly under Windows 7, but only can display a text console under Ubuntu 10.10, and that I ...
0
votes
0answers
48 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 ...
0
votes
1answer
107 views

PROBLEM(13.10) : external monitor not working [- nouveau-driver on macbook pro]

I am using Ubuntu 13.10 on a macbook pro. Would like to install external monitor VGA with the mini-port. no success. Trying: Settings→displays - nothing recognised. Trying xrandr --auto - ...
3
votes
1answer
426 views

Monitor not turning off when screen saver is on

I installed Ubuntu for the first time 3 weeks ago and I really love it. I have Ubuntu 12.04. My only problem is that when screen saver is on, it just shows blank screen, and not turning off the ...
-2
votes
1answer
106 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.
1
vote
0answers
23 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 ...
0
votes
0answers
35 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 ...
0
votes
0answers
14 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 ...
0
votes
0answers
10 views

Changing CRT monitor frequency in Ubuntu

I have an old CRT monitor. In Windows XP there was a frequency option for the monitor. Is there something similar in Ubuntu? I want to change the monitor frequency from 60Hz to 85Hz.
14
votes
2answers
29k views

How to see/change screen refresh rate or monitor frequency?

My eyes hurt so I thought I should check the screen refresh rate (monitor frequency), but I couldn't find it. Where is it? (in Ubuntu 12)
2
votes
1answer
6k views

How do I set up a new resolution?

Okay, in my GUI, Ubuntu only allowed me to set a resolution for 1360x768 and 1024x768 even though I know darn well my P76 monitor is capable of 1280x1024. So, after a little investigation I used cvt ...
0
votes
1answer
128 views

Compatible stand alone multi-touch display for Ubuntu?

I'm looking for a multi-touch monitor solution that i can connect to a workstation running Ubuntu 14.04. Does anyone know of a stand alone monitor I can use where touch actions would go over a usb ...
0
votes
0answers
77 views

External Display on HP 2013 UltraSlim-Docking Station with Ubuntu

I have an Elitebook 840 G1 with Dual ATI + AMD graphics and HP 2013 UltraSlim-Docking Station. I want to plug external monitor to the one of Displayports located on the Dock. The external monitor ...
1
vote
0answers
24 views

Monitor goes sleep during fullscreen black scene

My monitor (Samsung SyncMaster 171s) turns into sleep mode for few seconds when there is totally black scene in fullscreen (for example: between two scenes in a movie). How can I disable it? I'm ...
0
votes
0answers
53 views

Ubuntu only runs when on nomodeset

I don't know what nomodeset does but when I try running Ubuntu (just as a test before installing) my Tv which I use as a monitor will only pick it up in nomodeset but it also seems a bit slow. I ...
3
votes
2answers
668 views

How to make custom refresh rate stay saved?

I'm testing out 14.04 on a partition to see if I want to use it as my main desktop for when it's fully released, but I've encountered some problems. I have a 144Hz monitor, so in the the Nvidia X ...
0
votes
0answers
10 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? ...
1
vote
0answers
38 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
votes
1answer
65 views

Resolution problems Ubuntu 14.04

I have Ubuntu 14.04 and everything is working fine exept for the resolution, my monitor supports 1440x900 but in the options only allows 800x640 and 1024x768, I tryed the xorg.conf solution and it ...
0
votes
0answers
20 views

Display or system monitor do not wake up

I've Dell Inspiron with Kubuntu 14.04. When Close the lid and open it again it remain blank. As in power management I've set "When lid closed" to "Do Nothing". And it do not respond any key I press. ...
2
votes
1answer
158 views

Xubuntu 14.04 black screen after monitor off/on

I have a HP desktop machine with Ubuntu 14.04, with also Xubuntu and Gnome desktops installed. I mostly use the Xubuntu session. When using the Xubuntu session, when I power off my monitor, and power ...
0
votes
0answers
46 views

How do I get other resolution option other than default one in full screen? [duplicate]

I want to get my 1366x768 monitor to have other screen resolution 800x600 or 1240x768 in full screen. What option do I have? Thanks. Here what I did, shaharil@busuk:~$ xrandr Screen 0: ...
6
votes
3answers
1k views

How do I rotate my display when not using an X Server?

I have a widescreen monitor that rotates. I'm trying to use it in 'landscape' mode (vertical). This is easy in the GUI. How do I rotate my display when I am not running an X Server or when I am ...
4
votes
1answer
5k views

How do I configure a displaylink USB monitor?

I have seen many pieces but not a comprehensive guide to fix what must be a very common problem, particularly in Ubuntu 11.10 where there is no xorg.conf file. Is there an easy how-to somewhere (for ...
1
vote
0answers
29 views

Ubuntu 12.04 Server monitor goes into sleep mode (no display) after fresh install [duplicate]

For some reason I can boot and either use Ubuntu 12.04 server edition, or desktop version. I can live boot the disk, I can go through the installer, or even use the ubuntu alternate installer. But ...