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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0
votes
1answer
233 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 ...
0
votes
1answer
75 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 ...
1
vote
0answers
178 views

Dual monitor screens are reversed only in login screen

Today I installed Ubuntu 14.04 on my computer. I have dual monitor setup, and they work perfectly when I'm logged into the operating system. But every time I have to login in the login screen, the ...
2
votes
1answer
384 views

How to do monitor brightness changes on the desktop like on the laptop?

On a laptop you usually have working keys for changing the backlight and you see OSD notifications while changing them. How to patch this up for “normal” desktops? How to get parts of this going?
1
vote
0answers
96 views

The resolution is squashed!

I just installed Ubuntu 14.10 from the .iso. It worked fine the first time, but the second time I booted it up, the resolution was really messed up. The monitor was displaying everything really ...
0
votes
1answer
477 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 ...
1
vote
0answers
106 views

Ubuntu showing problems in connecting two external monitor

I am working with Ubuntu 14.04 on Dell E7240. I have connected two external Dell monitors E2211Hb but they both are not working simultaneously. Yesterday both were working fine and after some time one ...
0
votes
1answer
49 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 ...
1
vote
0answers
395 views

How to get native resolution of a monitor?

My Ubuntu installation seems to have magically guessed my monitor's native resolution (it's the mode it's set to on startup). Unlike most, my monitor's native resolution is NOT its highest resolution,...
2
votes
0answers
455 views

No HDMI video output from GeForce GT 330M - Ubuntu 14.04 LTS

I have a Dell Vostro with an Nvidia graphics card. Although the VGA output works fine, when I connect up a monitor on the HDMI output, Ubuntu (14.04 LTS) recognises it, but the screen is blank (no ...
1
vote
0answers
199 views

Monitor Printers remotely over SNMP in Ubuntu

We have a lot of printers in company and we want to monitor Page Counts, daily report,etc. we tested a lot of monitor tools but they did not meet our requirements, and we found this software for ...
1
vote
1answer
2k views

How to setup Asus MB168B USB monitor in Linux Mint? [closed]

is the first time I write here. I bought an external usb monitor http://www.asus.com/it/Monitors_Projectors/MB168B/; I have an Asus s56cb with dual boot, linux Mint 17 qiana and windows 7. On ...
2
votes
2answers
398 views

How to lock without turning the screen (monitor) off?

Due to a recent bug, each time my screen turns off, I cannot get it back on. Currently, the screen starts turning off after the computer is locked - which effectively means that I cannot lock my ...
2
votes
1answer
342 views

Why do I just get a black screen if I disconnect a DVI monitor and then reconnect it with Xubuntu 14.04?

I have one monitor that I use for both my PC (via VGA) and my Linux machine (via DVI). I just use it for one computer at a time, by pulling out the not needed cable and plugging in the required one. ...
1
vote
0answers
3k views

How do I get 144hz monitor refresh rate to work with the open source ATI driver?

With the open source ATI drivers, when I set 144hz in xrandr I get strange full-screen stuttering when I move some windows (especially my chrome browser, but other windows as well). I don't get these ...
-2
votes
2answers
531 views

no mail in `/var/mail`

i am trying to setup my system mail to monitor my mdadm raid arrays but I have no mail in /var/mail. How can I set this up and how can I test it? There should be something in may mail account I would ...
3
votes
1answer
3k views

Ubuntu Server 14.04.1 LTS Won't Boot w/Monitor Connected

I installed Ubuntu Server 14.04.1 LTS on a Lenovo RD540 server. Actually two of them. Both servers experience same behavior. 1) Server stalls during bootup. 2) The most recent message during ...
0
votes
1answer
344 views

Monitor network traffic usage per user by terminal?

Can you offer me some tools with which i can monitor traffic usage per user in WiFi/Ethernet network per user? And also will be good if i can see PC's name.
1
vote
0answers
315 views

Dual-monitor seems to be default in Ubuntu 14.04, and I try to solve it, but close the wrong monitor

I'm using Ubuntu 14.04 LTS. My mouse goes outside the screen when moving to the right edge, so I guess something wrong with my monitor setting. lt seemed that "dual monitor" was set as default setting....
1
vote
3answers
6k views

2560 x 1080 Screen Resolution on Ubuntu 14.04

I recently installed Ubuntu 14.04 on a mac mini and bought a 2560 x 1080 ultrawide LG monitor for it. Problem is that it doesn't display the proper resolution, the maximum being 1920 x 1080 under ...
0
votes
1answer
4k views

Full screen mode in a dual monitor work [duplicate]

I used to work with two displays. As usual I make full screen on the second monitor for watching web video while continuing to work on the laptop monitor. In Ubuntu it's always opening in full screen ...
1
vote
0answers
58 views

The UBUNTU Graphics Catch 22

Trying to use a Live DVD to run Ubuntu 14.04.1, I get the "Monitor signal out of range" error. I hit ctrl-alt-F1 to bring up the command line. I do sudo nano /etc/default/grub and remove # from ...
1
vote
1answer
449 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 ...
1
vote
2answers
491 views

External monitor horizontal lines problem

I got problem with my external monitor (Dell U2312HM) connected to my laptop (Radeon HD4570). There are appearing some horizontal lines. It is like blinking or flickering, it's actually quite hard to ...
0
votes
1answer
772 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 ...
1
vote
0answers
36 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
40 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
2
votes
0answers
492 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
60 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
2k 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 ...
5
votes
1answer
341 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 ...
1
vote
2answers
9k 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 ...
2
votes
2answers
5k 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.
3
votes
2answers
16k 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 nagios-...
4
votes
1answer
2k 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 ...
1
vote
0answers
192 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 don'...
1
vote
0answers
209 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
1answer
148 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 ...
-2
votes
1answer
5k 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
1answer
2k 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 ...
1
vote
0answers
127 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 ...
1
vote
1answer
563 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
214 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
289 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: ...
3
votes
4answers
6k 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 ...
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 ...
1
vote
1answer
2k 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 ...
1
vote
0answers
57 views

14.04 Laptop and screen problems

I have recently upgraded from 12.04 to 14.04 (Ubuntu) and I have contracted several problems. First being my laptop's power occasionally cuts out (Like the battery has been pulled out, and I have to ...
0
votes
1answer
1k 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
1answer
812 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 ...