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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17 views

mac mini 2014 monitor wake up issue

My 2014 ubuntufied macmini wakes up from sleep but the monitor doesnt. i guess the mini is missing out sending a signal to it. i had the same issue in osx but after the latest update that went away ...
1
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0answers
15 views

Second external monitor connected but screen is black Ubuntu 14.04

I have a strange problem with my second external monitor. It won't wake up automatically when my laptop starts, or when the laptop wakes up from standby or sleep mode. It will be on if I manually ...
3
votes
2answers
6k views

Turn off laptop display and have monitor

My laptop display has stopped working and is unfixable! Anyway, I got a full HD monitor and plugged that into the HDMI port of the laptop. I have changed the power settings so that I can close the ...
0
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0answers
7 views

intel-virtual-output -f XIO fatal error

After a fresh installation of ubuntu 15.04 i've updated the packages. And whenever i try to run intel-virtual-output -f it give me :- XIO: fatal IO error 11 (Resource temporarily unavailable) on X ...
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0answers
23 views

XB240H Abprz (144hz, 1080p, GSync) only running at 60hz without GSync! Solution?

I run Ubuntu GNOME 14.04 Trusty Tahr with a GTX970, 4790k, 16gb DDR31866, etc. I have the XB240H 24 inch, and it is running at 60hz. The on-board monitor options do not let me modify this, and when I ...
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2answers
5k 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 ...
0
votes
1answer
54 views

Lubuntu boot: no signal once in two

I have a strange problem with a fresh installation of Lubuntu 15.04 (Ubuntu 11.04 was ok). Sometimes when I boot the computer the monitor goes in "No DVI signal" mode right after grub selection. ...
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0answers
24 views

Grub acting up, and monitor resolution not detected - Ubuntu 14.04 Gnome

I've been having a lot of trouble with this lately and wanted to check if anyone here had a solution. I installed Ubuntu GNOME 14.04 on my secondary drive, but now when I boot up I get into the GRUB ...
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0answers
25 views

Ubuntu Gnome 14.04.2 not detecting my monitors resolution [duplicate]

I just installed Ubuntu Gnome 14.04 LTS on my gaming/design machine! (Specs: i7 4790k; Strix 970; MSI G45-z97;) and when I go into my display settings it says I'm using a built-in display and will ...
1
vote
1answer
22 views

How come I don't see grub every time I boot? [duplicate]

I have noticed that when grub boots up I don't get a black screen on my monitor. I want to make it so that it will show every time I boot, not just when I turn it off manually and then turn it on ...
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3answers
2k views

Screen resolution problems on Samsung monitor

I have a monitor Samsung 19' which resolution is 1440x900 (16:10 aspect ratio). When I set it in the recently installed Ubuntu 13.04, the bottom of the screen gets cut out Trying to change to another ...
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votes
2answers
4k 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
1answer
187 views

External monitor is disabled after resume (only on 15.04)

I recently installed ubuntu 15.04 and most things just work out of the box, awesome! But there is on annoying thing: I have an external screen connected to my machine (T450s, via docking station) and ...
0
votes
0answers
9 views

Screen scaling corruption after error dialog

I got an old laptop (Lenovo X300) someone was throwing out and decided to put Ubuntu on it. I haven't messed with Linux much since the Redhat 6 days. Periodically, an error dialog pops up saying an ...
10
votes
2answers
17k views

Could not apply the stored configuration for the monitor

I'm using Nvidia 7300 gt and monitor-Acer V173w, on 64 bit Ubuntu 10.04. Compiz and Emerald went well, but at the time of entry into the GUI, I always receive the message : "Could not apply the stored ...
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votes
0answers
13 views

Can't find monitor type on MacBook Pro - 14.04

Having some serious issues locating the name of my monitor for use in the command iw wlan0 interface add mon0 type monitor. I have the Mid-2014 MacBook Pro, also known as version 11.1. I'm running ...
0
votes
2answers
2k views

No video signal after install

Today I tried to install Ubuntu 12.10 to my machine, but all the time I encountered the same problem, I successfully boot from Ubuntu 12.04 DVD, and a purple background comes up with accessibility and ...
1
vote
1answer
1k views

How to setup Asus MB168B USB monitor in Linux Mint?

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 ...
9
votes
3answers
11k 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 ...
9
votes
1answer
151 views

15.04: Launching some programs turns monitor off and on (like for a resolution change)

I just upgraded from 14.10 to 15.04 and one of the first things I noticed is that the monitor often behaves like it was changing the resolution (a click sound from inside the monitor, black screen, ...
5
votes
2answers
736 views

Turning Monitor Off With an Icon

I'm running Ubuntu 12.04 on my laptop and sometimes want to turn the display off immediately (without closing the lid and without waiting for it to turn off by itself). I'd prefer not to have to run a ...
1
vote
1answer
94 views

Dual Monitors Stayed Mirrored

I am running a T450 with Intel HD Graphics 5500 with Ubuntu 14.04 LTS. I am also using a Lenovo Ultra Dock that supports a DVI input and a VGA input. Whenever I connect two monitors to both the DVI ...
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vote
2answers
156 views

Custom Shortcut for switching off the display

I want to add a Custom Shortcut (Keyboard → Custom Shortcuts → Add) for turning off the display but to do that, what 'Command' should I should use? I want to set a button to switch off the ...
1
vote
2answers
228 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 ...
1
vote
1answer
40 views

Monitor showing as DVI although plugged in as VGA

Recently I had my computer upgraded because I was having problems getting Ubuntu 14.04 to work. I now have more than the min requirements but am still having trouble getting the graphics to work once ...
10
votes
6answers
19k views

How to monitor & log server hardware temperatures & load

I am looking for a way to log & monitor my server hardware temperatures and load (like for CPU or RAM). How might I do that? Objective is to: ensure hardware is not heating up identify what ...
8
votes
2answers
13k views

Two monitors when only having one in 13.10

I just did a fresh install of Ubuntu 13.10 64bit, and it says that I have 2 monitors, when I actually only have one I have a Dell XPS 15 with Nvidia graphics card if that helps in anyway
1
vote
0answers
19 views

I have a “Element” brand monitor and the driver show up unknown

Have the latest 14.04 Ubuntu with a GeForce 7600GS video card. I have downloaded the latest Nvidia 304.125 from Nvidia 304 open source. I have a "Element" monitor. My display shows up as unknown. ...
0
votes
1answer
28 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 ...
7
votes
3answers
22k views

frequency out of range - please change display mode

I just downloaded the latest version of the Ubuntu live CD, and have installed it on a desktop computer (a Fujitsu Scaleo P). Once installed it seems to work perfectly, although there are some updates ...
1
vote
1answer
636 views

Adding a large asus monitor resolution

I am trying to set up this monitor: http://commercial.asus.com/product/detail/vs247h-p-lcd-monitor I am able to connect the monitor and use it in various screen configurations, but have not yet been ...
0
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0answers
116 views

HDMI Screen doesn't wake up (no input) after sleep or computer locked

When I put computer to sleep, or computer is locked and screen turns off, I am trying to wake up computer, computer powers on, but my HDMI monitor wont turn off. I have to manualy restart my PC ...
0
votes
0answers
43 views

Portait Display error in 15.04

I have two displays - one in landscape (via display port), one in portrait (via VGA). For some reason the monitor in portrait mode only uses just over half the screen. Changing the Display/vga ...
1
vote
0answers
303 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 ...
0
votes
0answers
310 views

Can't get my native screen resolution on 15.04

I installed Ubuntu 15.04 after using Windows 8.1 for some time. Now, my main problems is, that I can't get my native screen resolution which is 1440x900 :/ On Windows I could do it without any ...
1
vote
1answer
40 views

Screen has broken color set after a while - Ubuntu 14.04

After a while of no activity the screen locks, but when I log in the screen looks like this: :D I am sure it is something with the software, not the hardware as I have never experienced similar ...
0
votes
0answers
65 views

How to calibrate monitor in Ubuntu Mate

Question: How can I calibrate my monitor in Ubuntu Mate without extra hardware? Details: I have installed gnome-color-manager but no gui is available and I can't find an ICC profile file for my ...
3
votes
0answers
134 views

Spyder5 Monitor Calibration Ubuntu 14.04

I tried to get the Spyder5Express running under Ubuntu 14.04. Installed is dispcalGUI and the Argyll_V1.7.0 software. Unfortunately the device is neither detected in the GUI nor in the Terminal. I ...
0
votes
0answers
20 views

Laptop monitor loses connection and cannot reconnect

I have bought a Lenovo Y40, and it seems to be having a problem with the flex in the lid hinges. The issue is that sometimes when I move the lid in some direction, it shows wired black and white ...
5
votes
1answer
78 views

Why isn't Gnome Color applying my color profile?

I'm trying to use the Gnome Color (default Color app in /usr/bin/gnome-control-center.real color) to manage my laptop's color profile. However, only some of the color profile actually change the ...
0
votes
0answers
49 views

Possible to add an additional a 4K 60hz monitor on Trusty Tahr?

I have a 1920x1080 and a 1920x1200 monitor on my current Ubuntu 14.04 setup, and I'm thinking of adding a 3rd monitor as my main, preferably a 4K screen at 60hz such as the Dell P2715Q Have you guys ...
6
votes
2answers
850 views

How to have launcher on non-primary screen?

I'm running Ubuntu 12.04 LTS on one computer with two monitors. I've found the place in settings where I can set the "launcher placement" and the "primary" monitor (using the black bar); however, I ...
0
votes
0answers
61 views

Widescreen problems on 14.04 lts

I'm having trouble with setting up my widescreen monitor for Ubuntu. Mine is running normally (and when it blacks out due to different reasons it displays it as native) on the 1366x768 resolution. The ...
0
votes
2answers
43 views

How can I tell ubuntu to use only the external monitor?

I use ubuntu 14 with an external monitor. It seems there is some problem with the internal graphics so I want to tell ubuntu to use only the external monitor which is connected with hdmi. How can it ...
1
vote
0answers
51 views

How To Increase Screen Resolution?

I have a 1600x900 monitor attached to a 1280x768 laptop, only the latter resolution is available, how do i increase it to my monitor's max resolution? the xrandr result is: Screen 0: minimum 8 x 8, ...
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0answers
44 views

I cannot see my menus or apps in ubuntu 15.04 [closed]

This occurred after having my ASUS connected to external monitor which is often problematic.
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0answers
47 views

drivers for HP U160 USB monitor

Somebody know if exists a driver for HP U160 USB monitor ? I've used this monitor as secondary in windows but now that I changed my OS to Kubuntu 14.04 I'm not able to configure and use it.
1
vote
0answers
96 views

Display color calibration error “unknown calibration display type selection”

Fresh installation of Ubuntu 15.04. Running Settings-Color-Calibrate Have "Eye-one display 2" sensor connected and working. Getting the message during step be step calibration configuration: ...
2
votes
2answers
244 views

Ubuntu 14.04 with unrecognized monitor (or without monitor) - boot problem

I've Ubuntu 14.04 installed on my computer. I need to start it even if not any monitor is plugged. Basically I need to do that because at the startup my monitor isn't recognized but plugged in. ...
1
vote
1answer
104 views

How can I mirror one of the screens in a 3-monitor setup?

Is it possible to have 2 extended monitors and get the third being a mirror of one of the two extended? I'm pretty sure it's not possible through the interface but it may be possible through ...