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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3
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0answers
543 views

How do I remove black bars on top and bottom of my display?

I have a problem with my ubuntu 12.04 LTS. It shows my Samsung Electric Company 17'' strange. It is not centered. I have a black space up and right. The pictures will explain better my problem. ...
2
votes
0answers
167 views

Ubuntu 12.04 cannot detect my second screen

What I wanted is a dual monitor setup but I got two monitors with the same content :(. I have an ASUS Z87-K motherboard and am connecting two monitors to its integrated graphics (HDMI and VGA). I ...
2
votes
0answers
95 views

How can I make multiple monitors go to standby independently?

I have a two-monitor setup. One monitor I use all the time, the other sometimes. I find myself switching the second monitor on and off quite frequently, so as not to be distracted by its contents. Is ...
2
votes
0answers
329 views

Ubuntu Server changing Monitor from DVI to VGA

i have a little problem with my Ubuntu Server 12.04. I installed it yesterday with a DVI monitor connected. With the DVI Monitor, everything works fine. But when I try to connect it with an other ...
2
votes
0answers
162 views

How do I change the maximum resolution of my computer for multiple monitors?

I am trying to enable three monitors for my setup in Ubuntu 12.10. My card is a Raedon 5700 HD series. When I try to extend my display to any additional monitors, I get the following error: required ...
2
votes
0answers
866 views

Can't get the right resolution for external monitor

This problem is probably pretty specific to my hardware, but I'm getting frustrated with my limited knowledge on things I might try to solve it, so I post it anyway and hope for help :) I've got a ...
2
votes
0answers
110 views

monitor calibration does not work - the button to calibrate is grey

The calibration of my monitor does not work the the button to calibrate is grey. Pls take a look at the linked screenshot. Do I need to install any further packages to calibrate the monitor? ...
2
votes
0answers
105 views

How to manage colours of monitor?

When I was on Windows 7 there was a program: Intel HD Graphics control panel. My notebook: Acer Aspire 5750G Integrated videocard: Intel HD graphics discrete video card: Nvidia 630m How can ...
2
votes
0answers
627 views

I can't set 1280x1024 resolution in 12.04

After installing a fresh Ubuntu 12.04 on my PC, Ubuntu can't detect my monitor which is a Phillips 190c 19". With 10.10, I used 1280x1024 and on Nvidia drivers I was able to see my monitor brand. ...
2
votes
0answers
317 views

Ubuntu lost my external monitor

I installed ubuntu on an old Dell Latitude D630 laptop from a USB stick. I had an external monitor hooked in at the time, and during the installation, ubuntu found my external monitor without a ...
2
votes
0answers
1k views

Second monitor on NVidia card cannot detect proper resolution

A friend had given me one of his extra monitors, and even in Windows it gave me trouble in producing the right resolutions. I switched back to Ubuntu with the release of Pangolin but can't get it to ...
1
vote
0answers
26 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 ...
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 ...
1
vote
0answers
32 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.
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 ...
1
vote
0answers
23 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
0answers
37 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 ...
1
vote
0answers
29 views

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

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
0answers
18 views

Automatically detecting and outputing to s-video at startup

After combing the Internet I have developed a script that is capable of checking whether I have a monitor connected to my VGA port and switching to my s-video port if not #!/bin/bash # if no vga then ...
1
vote
0answers
31 views

Dual vertical monitors messes my desktop

When I enable my two monitors in vertical positions My desktop files get dispersed vertically among both screens and the file icons on the upper screen are displaced, they look like they are ...
1
vote
0answers
310 views

Detected displays wrong after upgrade to 14.04

upgrade to 14.04 - screen display finds 1 built-in monitor, however I have 2 identical "LACie photon20vision II" screens (neither Built-in) attached to a ATI Radeon card. It does not seem to be ...
1
vote
0answers
101 views

Can't set custom resolution with TV and GT610, xrandr and Nvidia woes!

So, I've looked around, and I know nothing about xrandr and the lot. I thought I had my display fixed, but it kinda... Pans, or scrolls, when I move my mouse to the edge of my display... Anyone know ...
1
vote
0answers
65 views

Laptop screen blank when I connect an external monitor (which works)

I have connected an external monitor to my laptop via VGA. However I can't get both working at the same time. What I wanted was for the external monitor to be a continuation of my laptop, however when ...
1
vote
0answers
54 views

Monitor stays black after plugging it in

I am running Ubuntu 12.04 on a PC using lightdm. When I have the monitor plugged in from the start the system boots just fine and everything works as expected. When I plug off the monitor, the system ...
1
vote
0answers
62 views

HDMI Display Screen Resolution Resets

After I managed to solve my issues with the HDMI - VGA converter by reinstalling Ubuntu, I was wondering why Ubuntu keeps my resolution settings in some cases and loses them in others. I've written a ...
1
vote
0answers
160 views

Can't get HDMI out working on Lenovo G560

Can I get Dolby To My PC but no on HDMI out please (our DTS whatever) On Lenovo G560 xrandr: Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767 LVDS1 connected primary ...
1
vote
0answers
98 views

Turn off monitor only after locking screen

I see there is no setting to turn the monitor off after the screen is locked unlike the one for screen locking which can be set to act after the monitor has been turned off. I do not want the system ...
1
vote
0answers
241 views

Monitor turning off randomly Ubuntu 13.10

I have a fresh installation of Ubuntu 13.10 with the latest updates on my PC. I am having a issue where the monitor seems to randomly disconnect. I cannot pinpoint what is causing this issue. It can ...
1
vote
0answers
42 views

Using iMac running Ubuntu as a display for a Mac Mini

I have an iMac running Ubuntu, and a Mac Mini running OSX. I would like to use my iMac as a display for the Mac Mini by using using a target-disk mode equivalent for Ubuntu. I have my iMac and Mac ...
1
vote
0answers
79 views

How can I get the built-in display to pan as I move the mouse to the edges in dual display mode?

I have an Eeepc 900a with a display of 1024x600 running lubuntu 13.10. The VGA port will display at 1920x1080. I am able to use LXRandR 0.1.2 to set it to use both displays at the same time. How can I ...
1
vote
0answers
77 views

How to keep the open windows in the right workspace while changing/rotating monitor?

when I plug in/out an external monitor monitor, or I rotate the laptop monitor, the windows/applications open in the several workspaces often mess up, such as in the following figure: How can ...
1
vote
0answers
477 views

Intel graphics Ubuntu 12.04.3 LTS: does not detect second monitor

I have some problems to get the second monitor working on my Ubuntu 12.04.3 LTS. If I click on the detect button it does not work. Info about my system: $uname -a Linux LabTop2 3.8.0-32-generic ...
1
vote
0answers
106 views

Screen orientation doesn't stay in 13.10 (Gnome 3.10)

I upgraded to 13.10 and Gnome 3.10 and now every time I start my computer my second screen resets its screen orientation to normal (I rotated the monitor counter-clockwise). This worked fine in 13.04 ...
1
vote
0answers
197 views

I can't get over a resolution of 640x480 after upgrading to 12.04, how can I fix it?

Ever since I upgraded to 12.04 my screen resolution has gone down to 640 x 480, even though I had higher resolutions before. $ xrandr xrandr: Failed to get size of gamma for output default Screen 0: ...
1
vote
0answers
45 views

Adjust monitor settings to compensate for vision problems

Is there any software that allows to "blur" or sharpen what's on your monitor to compensate for vision problem in Ubuntu? I sometimes forget my glasses (I leave them at work, or forget them at home). ...
1
vote
0answers
262 views

Ubuntu 13.04 - Dual-monitors - Primary Monitor: Black Screen, Secondary Monitor: Unresponsive Desktop

So I recently installed Ubuntu 13.04 alongside Windows 7 and I'm loving it so far. Everything is working fine except my second monitor. If I'm already in Ubuntu when I plug the second monitor in, ...
1
vote
0answers
122 views

Monitor goes to Power Saving Mode with Ubuntu 13.04

Hello I'm new to ubuntu and i've just installed 13.04 on a partition to dual boot with windows 7. I have a LG FLATRON 19' LCD monitor and several minutes after I have logged in the monitor goes into ...
1
vote
0answers
100 views

Frequency out of range message when using console

Why does an error message appear when I switch to a terminal using Ctrl + Alt + F1: 135k / 91 hz Frequency is out of range And more importantly, how do I fix this?
1
vote
0answers
151 views

After suspend, my monitor wont turn back on

I set my pc to suspend after 5 minutes of inactivity, when I return to my computer I mash a couple of keys and the pc turns back on and the drives start spinning etc etc, but I get no signal to either ...
1
vote
0answers
98 views

Ubuntu blinks in DELL 2850

I have just installed Ubuntu (12.0.4 TLS for Servers) on a DELL poweredge 2850. During the installation, the process goes OK. However, as soon as I start the system normally (and the text font is ...
1
vote
0answers
40 views

Start screensaver on still pictures

I have an Ubuntu box connected to a plasma TV. Still images reduce the lifetime of plasma TVs and may cause pixel-burn. I am looking for a technique to start the screensaver if the picture on the ...
1
vote
0answers
219 views

Multiple monitor setup - randomly one monitor is detected as removed and added again

I have a 3 monitor setup, all 3 same viewsonic model, new (less than a year). Randomly, monitor 1 will be detected as removed and added again (from syslog): May 6 21:47:33 athena colord: device ...
1
vote
0answers
250 views

No display detected after installing bumblebee on Dell XPS 15z

So I've been having quite a bit of issues with Ubuntu on this laptop. When I tried to install 12.04 a while ago I never even got the external monitor to work at all and gave up for a few months. So ...
1
vote
0answers
125 views

Why is HDMI taking so long?

I have Ubuntu 13.04 with some integrated Intel graphics chip, and a monitor with DVI and HDMI. When I use the DVI output, everything is OK, but if use HDMI it takes ages to recognise it, and I have to ...
1
vote
0answers
1k views

Savage S3 and Lubuntu (or any flavour) 12.10 big issue

Please be nice with me: I spent all the night with it and I'm exausted. I've got an old Acer Aspire1300 15"(512+256RAM and 1.3 mhz cpu). I tried all night installing Lubuntu, XUbuntu.. lspci -k ...
1
vote
0answers
124 views

Media keys disable external monitor

Recently on my Dell XPS M1330 with Ubuntu 12.10, after some updates (I could not figure out which one caused the problem), if I press the media keys on the keyboard or the remote control, they turn ...
1
vote
0answers
400 views

dual monitor setup with extended desktop

I am trying to setup a dual monitor settings in ubuntu which will extend the desktop over two monitors. That means single panel, single launcher over two monitors. Actually I was going to setup two ...
1
vote
0answers
222 views

Display and projector got messy after screensaver or energy saver

I'm a professor and I use Ubuntu to show my students presentations about the content. I get my laptop connected to a projector available in the room and, that works just fine at first glance. No keys ...
1
vote
0answers
199 views

Larger resolutions on VGA monitor using GMA 3150

I tried to connect a VGA monitor to my Netbook to increase resolution. Unfortunately, in Lubuntu maximum available resolution is 1024x768, while in Windows I can increase it to 1680x1050. Is there ...
1
vote
0answers
290 views

Frequency out of range

I am a entry level person for Ubuntu using 11.10 currently trying to install it on a hdd. I am facing the issue of "Frequency out of range" problem and i have followed this advice but the issue is ...