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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24 views

Ubuntu 15.04 set primary display [duplicate]

I've 2 display: - Laptop's = 1366x768 - External = 1280x1024 When i use both of them, the external one is on left side of my pc, i organize monitor with Ubuntu's setting, and the system move all my ...
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2answers
32 views

System Monitor with data logging

Is there some application that allows system monitoring with value logging ? Most of system monitor application usually shows current system usage (CPU/RAM/HDD/NET etc) with (sometimes) small history ...
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2answers
82 views

chrome resolution changes when monitor is turned off

Having an issue with Google Chrome resolution/dpi changing when I turn my monitor off. I'm pretty sure that this is all related to the scaling factor from Universal Access Panel. in which I have large ...
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0answers
15 views

Notebook Bult-in Monitor Not Recognized After Installing Nvidia Cuda 7.5

I tried to install Cuda 7.5 (that comes together with Nvidia-352 driver) in my clean Ubuntu 14.04 dist, however I keep getting this black screen when the log in page should have been available. I ...
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0answers
103 views

Forcing 60Hz refresh with 4K monitor

I have a P2415Q Dell and it's been working brilliantly. Then this morning it inexplicably started refreshing at 30Hz and I cannot seem to set it back to 60Hz (there is no option higher than 30Hz in ...
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0answers
58 views

Ubuntu 14.04, dual-screen, One screen is “fuzzy”

I'm running two identical monitors, one via KVM. The monitors are identical Dell U3014's capable of running at 2560x1600. One is connected directly by a mini-display port cable, the other is connected ...
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0answers
87 views

Dual monitors not working properly

So I've been using Windows 10 for a while with 3 monitors and I wanted to give Ubuntu a shot, because I heard a lot of positive things about it. Anyway, when I first booted up Ubuntu, all my 3 ...
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0answers
100 views

DisplayPort adapted to VGA works in GRUB and Windows but not in Ubuntu

I have a Zotac CI320, which has Intel HD Graphics on its Celeron N2930. Up until now, I've been using the HDMI output, which works fine. I'd like to switch to using it with a VGA monitor input, so I ...
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0answers
25 views

All devices no longer detected

I'm running Ubuntu 14.04 on an Asus ux303 laptop I rebooted and while the desktop loaded just fine, it isn't detecting external monitors or wifi card. Lsusb shows the keyboard and mouse but neither ...
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1answer
97 views

Help in correcting or bypassing a bug resulting shifted screen in my ubuntu

On Ubuntu 15.10 using an nVidia gtx 960 card, and life was great until nVidia released driver 355. Everything was fine with the 352 series and when I updated to 355 I got the shifted screen bug. As ...
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0answers
17 views

Running multi monitor set-up breaks Ubuntu

I'm attempting to use dual monitors, running one through the graphics card, and one through onboard, (using nvidia driver). However whenever I set this option from the BIOS, Ubuntu refuses to run (...
19
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3answers
2k views

How can I get my laptop's monitor size?

What is the Ubuntu linux command to find laptop monitor size? I want to know in inches if possible. Thanks
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0answers
35 views

Mouse flickering Ati Radeon 7470 Ubuntu 14.04

I am currently running Ubuntu 14.04, Ati Radeon 7470. Everything works fine except for the mouse flicker ALL the time and if I disconnect and connect a monitor immediately log me off. I have not ...
0
votes
1answer
62 views

Steam with a computer using 2 monitors

I have 2 monitors, and every time that i run a game from steam, it runs in the wrong monitor. Can I tell steam in which of the monitors to use the full screen mode? Thanks
0
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0answers
18 views

Monitor no signal after installing kde plasma

I recently decided to install kde plasma on my machine. I did the install, and everything went well. I restarted my computer, and now my montitor say no signal. This is on a laptop, but the actual ...
0
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0answers
50 views

Ubuntu 15.10 Problem with monitor since today

Since today, my system stopped recognizing my monitor. The display is surrounded by black space, like if it was a 17' monitor. My monitor is a samsung 22', and my graphic card is GF GT 520. On system ...
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0answers
451 views

Configuring Ubuntu for a 21:9 screen

I have an ultra wide screen, 21:9 resolution, AOS. There's no option for 21:9 in the Ubuntu display settings though so I have to have the monitor set to 16:9 which kind of defeats the purpose of ...
0
votes
1answer
136 views

how to install download-monitor on 15.10

i have 15.10 and want download-monitor as shown from https://apps.ubuntu.com/cat/applications/precise/download-monitor/ it is not available. How to make it available?
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0answers
27 views

Can't connect to monitor from ubuntu 14.04

I've got a linux box under my desk that I control via putty and WinSCP, it works fine but for a few things I prefer to have an actual display to do it. I switched over today and theres no output to ...
1
vote
1answer
26 views

How can I dim my monitor?

On windows, I had an application called dimmer. I used it on my desktop monitor to make the brightness more manageable. I want an equivalent for Ubuntu. I tried xbacklight to no avail.
0
votes
1answer
59 views

Visual fatigue in Ubuntu

Hello I have a problem with ubuntu. Visual fatigue is the problem. After using my pc, my eyes feel really tired. The problem? I have an LED monitor so it's not the technology that's the problem, ...
0
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0answers
21 views

Package name of the Unity monitor manager GUI

The default GUI tool for dragging external monitors around, changing their resolution, mirroring the monitors, etc.; this tool is somehow gone. I’d like to install it but I can’t figure out the ...
1
vote
1answer
95 views

Network activity monitor

I would like to ask you, if you know any SIMPLE and LIGHTWEIGHT application for monitoring network? I am not looking for network activity monitor for servers, like daily stats etc, i need realtime ...
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0answers
33 views

Some applications don't stop in Ubuntu 15.10

After installing Ubuntu 15.10 I've noticed that some applications don't really stop after you close them. It's the case of Ubuntu Tweak and qbittorrent. When you close them and try to open them again ...
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0answers
120 views

display issue in 14.04 Dell Optiplex 9020 with Intel HD 4600 and dell Monitor

just upgraded to Ubuntu LTS 14.04 with Dell Optiplex 9020 Intel® Core™ i7-4790 CPU @ 3.60GHz. HD graphics 4600, Dell 21.5 inch 1920 x 1080 resolution screen. no option in display to increase ...
1
vote
1answer
39 views

Stop display from fading & consequently shutting monitors off when screen is locked on 14.04

So far I've tried what's shown in the image below, and I also restarted my system afterwards to see if that helped, but still, when I hit WIN-L my screen will lock and slowly start to fade to black, ...
0
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1answer
218 views

Second Monitor Not Detected!

I have a Dell M3800 and recently purchased a Dell S2715H and connected it to the laptop through the HDMI cable. For whatever reason, the monitor is not detected by ubuntu. My older dell monitor ...
0
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1answer
164 views

Getting wrong resolution on old samsung monitor

Today i connected my pc with old samsung sync master 591s monitor and getting strange display resolution. My resolution is being set at 800x600 but still cant see my side panal. Well its look like ...
2
votes
1answer
106 views

Set “default” monitor to ALWAYS run apps in it instead of display#1

In my system, there are two different monitors 2 (main) and 1 ( in right , for films or etc.). When i use #2(main), logging in and opening an app or pressing Ctrl+Alt+T key, window opens in monitor 1,...
0
votes
1answer
24 views

2nd Monitor isn't recognized in Display but is usable

I have Ubuntu 15.04 currently installed, with the AMD display driver. AMD recognizes both monitors, and has the accurate information and resolutions on both monitors, and both monitors set to single ...
0
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0answers
22 views

Display (50“tv) is detected as 72”

I'm new at using this OS 14.04.3 and the monitor e.g. my TV as this is to be a mediacenter is detected as Goldstar 72" when it is infact a LG 50". It is hard to get proper proportions and handle it. I'...
3
votes
1answer
188 views

Bind mouse to a concrete monitor in a dual screen setup with two independent pointers

Scenario is, bind my Wacom Bamboo to my second monitor and my mouse to the first monitor. The binding for Wacom Bamboo works perfect with the settings for the tablet. But how can I bind my mouse to ...
0
votes
2answers
108 views

Why can I watch 1080p videos if my Pc has a lower resolution?

When I tipe the following comand in the terminal xdpyinfo | grep dimensions I get the following output: dimensions: 1366x768 pixels (361x203 millimeters) As far as I know these are the number ...
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0answers
71 views

[Lubuntu]Default Resolution Problem

I have a problem. I have to let you know as a warning that I am a completely newbie. I just installed Lubuntu 15.04 and I wanted to try them. I am a windows user and coding seems a bit rough for me ...
0
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0answers
254 views

Music visualiser program for Ubuntu?

I'm looking for a program that will render a full screen music visualiser like the one in this video. I'd like this to be able to take input from a 3.5mm jack and then display on a second monitor ...
1
vote
1answer
261 views

Monitor Resolution problem in Xubuntu 15.04

I'm new in this forum and even a beginner with ubuntu. I've already tried to set the resolution of my monitor to 1440x900 but I can't get on because xrandr shows me error messages like: xrandr: ...
0
votes
0answers
392 views

Ubuntu installation disc “failed to map dmar0”

I have installed Windows 10 recently but I have encountered a lot of problems so I want to go back to Ubuntu. Found the installation disc and boots normally for about 10 seconds. Then the screen goes ...
0
votes
2answers
67 views

How to switch to external monitor or clone main one while main one is broken?

I have my laptop and the screen is broken on it. I have an external monitor and I want to duplicate the screens so I can see what I am doing, but I can't see the main screen so I can switch that. ...
0
votes
0answers
14 views

Ubuntu Monitor turn of and on

When I turn off my monitor using it's button, and then turn it on again it does not receive any signal from the computer until rebooting it. The problem in Ubuntu 14.04.
0
votes
1answer
44 views

How do I set brightness to a lower level in lubuntu 12 (HP laptop)?

I tried everything I found online, but none of the methods I found worked. The buttons don't work, and there's no such thing as "Brightness" in Monitor Settings. I tried xbacklight -set but it didn't ...
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1answer
200 views

How do I apply color profiles in Xfce?

In GNOME, you can use GNOME Color Manager. But how can I do this in Xfce?
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0answers
52 views

Monitor Configuration

Upon booting, I get the following: Could not apply the stored configuration for monitors none of the selected modes were compatible with the possible modes: Trying modes for CRTC 63 CRTC 63: trying ...
1
vote
1answer
178 views

How to add a resolution in display settings? [duplicate]

I have a computer using Ubuntu 14.04 LTS with the ASUS Nvidia gt440 graphics card and a vga monitor that is supported with the resolution of 1280 X 800. However, in the display options I could not ...
4
votes
0answers
1k views

15.10 Dell XPS 15 (9550) External Monitor not waking

I'm in Ubuntu 15.10, with Kernel 4.3. Things are working better than I could ever imagine. Other than ONE bug... When my laptop turns off it's screen and my external monitor's screen (I have it set ...
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0answers
36 views

install centreon on ubuntu server 12.04

I am trying to install Centreon on ubuntu server 12.04 (32 bits) Do you have any tutorial to do so ? Thanks
0
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0answers
32 views

Ubuntu 14.04 does not detect second monitor (works fine with Windows 10)

lpsci | grep VGA gives the following output 03:00.0 VGA compatible controller: NVIDIA Corporation Device 13c0 (rev a1)
2
votes
1answer
400 views

Prevent monitor from losing signal after screen saver / lock activates

After the screen saver activates, or after I manually lock the screen via Ctrl+Alt+L, I see a blank black screen with just the date / time in the upper right corner. A few seconds after that, my HP ...
0
votes
0answers
22 views

Cycle monitor power on Suspend/Resume

I'm trying to find a way to get my Ubuntu desktop to automatically turn off my monitor (actually a Sceptre TV) when it suspends, and automatically turn back on when it wakes. They are hooked up via ...
1
vote
1answer
386 views

Dual monitor resolution is ok, but display is stretched in ubuntu 15.10

i have a fresh install of Ubuntu 15.10, with a dual monitor setup on a Nvidia GT620. Both monitors are Samsung SyncMaster S23B350, left monitor is with on a VGA to DVI adapter, and the right monitor ...
1
vote
1answer
273 views

Horizontal lines in Ubuntu 15.10

I have installed Ubuntu 15.10 64bit on a Dell Optiplex 780 desktop with a 23 inch monitor, 4 GB of RAM and Intel Duo Core processor. The monitor shows horizontal lines (artifacts) randomly at any ...