Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)

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How to prevent kernel messages from flooding the TTYs?

Is there a way to stop the ttys from being flooded by the kernel messages? The display shows a continuous stream of messages (which are also logged in the /var/log directory). Every text I key in ...
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6 views

How to properly connect second Monitor via HDMI?

I have a Samsung Series 9 900X4D Notebook with an Intel Core i5 3317U CPU ( Intel HD Graphics 4000 ). The main displays resolution is 1600x900. I would like to use a second display with my microHDMI ...
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1answer
10 views

How to lower refresh rate on external display (projector) from 75 hz to 60 hz

I have a projector that is 3D Ready, but it can only handle a refresh rate of 60 Hz to use the 3D settings, yet for some reason it defaults to 75 Hz when I plug it in through the HDMI port (the only ...
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0answers
22 views

How to get the current display output using the command line?

I'm writing a script in which I need to switch between two displays, but I can't find a way to get the information about the current active output. Pretty much like this: if Display0 is off and ...
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22 views

Black screen on Radeon HD 6790 (DVI), working on integrated graphic card (VGA)

My computer: Gigabyte GA-H81M-HD3 GoodRam DDR3 4GB/1600 CL11 Intel Pentium G3420 AMD Radeon HD 6790 Is there any chance to repair ubuntu on Radeon? I have also Windows 7 and everythink work good, ...
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1answer
7 views

System freezes after VGA output goes crazy

I am running a dual monitor setup with one running off VGA and the other off DVI on a Asus H97 motherboard. Integrated graphics from an i7-4790. And Linux (Ubuntu 14.04.1 LTS updated to the latest ...
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0answers
16 views

A cursor track left on the screen

When I move mouse, there will be a cursor track left on the screen, shown in figure. How can I fix it? The figure link is here
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2answers
71 views

Second Monitor does not detect on Ubuntu 14.04.1 LTS but detects on Windows 8.1

I just installed Ubuntu 14.04.01 LTS on my secondary partition on my Solid State Drive. I noticed that when I went into System Settings --> Displays --> Detect Displays, my system is not detecting the ...
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11 views

how to work around incorrect mode setting / video resolution in text mode

I'm currently setting up a Mac Mini as a server with Ubuntu 14.10. I've disabled lightdm so it's text only. It will only be connected to a monitor when a direct console is required. Trying this out ...
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1answer
15 views

Change display output mode in system tray?

I attached my laptop to my tv, and I wanna be able to change the output from laptop display to tv or tv to laptop, with one click ( and choose their resolutions) and I do NOT like the FN+F5 shortcut ...
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36 views

Ubuntu 14.04 hybrid graphics ati dual display

I can mirror my displays but extending the desktop results in display overlap as well as flickering. The second monitor is a 32" Samsung TV connected via HDMI and I am using ATI proprietary drivers ...
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2answers
27 views

Change only one display orientation from terminal

I am starting to work with 2 displays on Ubuntu. One of them is rotateable, so I can use it easily in both landscape and portrait mode. But I world prefer to have ability to change orientation setting ...
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0answers
35 views

Disgusting look of ubunut 14.04 fresh installation on Dell xps 8700

I have installed Ubuntu 14.04 on Delll xps8700 (with win8 pre-installed) as dual boot. Although, I have used Ubuntu for long time on lenovo laptop, but I feel that Ububtu's look-and-feel is really ...
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0answers
27 views

ThinkPad W530 - Mini display port doesn't work

I have a ThinkPad W530 Laptop. It has Nvidia Q K1000M installed. I am unable to make mini display port work to be able to connect to an external monitor using mini to hdmi display cable. My guess is ...
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0answers
28 views

Ubuntu 14.04 problem refreshing screen

I have problems of refreshing screen, but I don't know the cause of the problem. Sometimes, my screen "twinkle", that means it pass to the current view it must be display, and the previous view. For ...
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1answer
43 views

How to set the main monitor on Lubuntu?

I have a desktop computer with Lubuntu and a dualhead display (two monitors). I want to extend the display to both monitors (currently they're mirrored), but I have a problem: the left monitor is a ...
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0answers
8 views

Desktop notworking after login [closed]

I have installed both the 32 bit and 64 bit versions of 14.04 LTS and 14.10 in a VMware Workstation 11 virtual machine. In all cases after I login parts of the desktop turn black and eventually the ...
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0answers
14 views

“DO NOT USE” message in display settigs

I have a strange issue that I looked for solution in the net and found nothing. I'm using 2 screen. One is Dell UltraSharp U2312HM and the second is Xerox xm7-22w. The Dell is working perfect, but ...
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0answers
27 views

Autologin to GNOME display manager

I am using kali-bit. I don't know what happened, but when I turn on my PC it settles on the GNOME Display manager user' desktop directly, without any login screen. When I click on switch user or log ...
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0answers
24 views

When I turn my monitor on after it has been off, it does not display anything

I am running Xubuntu 14.10 on a desktop and use LightDM. As I said in the title after I turn off my monitor (with the computer already on) and then turn it back on again there is no input from my ...
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0answers
43 views

Chromecast as second display

I'm using Chromecast with ubuntu 14.04 and I'm able to mirror my desktop using chromium + google cast addon. Just wondering if it's possible to 'extend' my desktop as if chromecast was a second ...
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1answer
25 views

Reset Display settings

I was trying to set up my laptop to plug into an external lcd display in portrait mode. I found an option with a visual display of the screen and a rotate button among, I believe display settings or ...
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22 views

Strange color changes and large patches of green (after some time) make sceen unreadable : what is wrong?

It happened twice as of now. Large patches of green and other colors take the background and then all colors change mostly to a kind of light blue. I cannot work anymore and stop the PC. Is it the ...
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0answers
30 views

Setting best display mode as default

I use two resolutions - 1680x1050x60Hz for general usage and 1280x1024x75Hz for CS:GO playing. I have set 1280x1024 in CS:GO settings, but when it launches it sets itself at 60Hz. For this moment I ...
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0answers
13 views

Sony Vaio switching between internal and external monitor after coming out of suspend

I have a sony vaio and when it comes out of suspend mode, the screen display will either be the detected wide screen, a smaller screen or blank (as it has selected external monitor mode!). Each time I ...
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1answer
62 views

Is there a way to prevent your windows from moving when an external monitor is connected?

So, I'm using Ubuntu 14.10 on my laptop and occasionally plug it into my TV for a second screen. My TV is to the left of my desk. When I enable it as an external monitor to the left of my laptop ...
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0answers
28 views

Ubuntu 14.04 Incorrect Aspect Ratio for Monitor

I recently bought an SSD and added it to my system to install Ubuntu on. Below are the specs of my system. Intel i7 3770k @ 4.5 GHz 16GB RAM EVGA NVIDIA GeForce 660Ti The issue I am having is that ...
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0answers
56 views

Using Ubuntu 14.4 and nvidia prime to switch to dedicated video card

So, basically I have a laptop, asus n765vz with integrated graphic and nvidia gt650M. I installed prime to switch to the dedicated video card and it worked. The problem I have is that I connnected a ...
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0answers
54 views

Triple Monitor on 14.04 with nVidia 710M

My laptop (Asus X552CL) has both an HDMI out and a VGA out, as well as the built in display. I'm using the proprietary nVidia driver version 340.58. Pretty quickly I realized that when a VGA cable ...
0
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1answer
48 views

./setup.py: command not found

I followed steps from here Flux for ubuntu 14.04 - possible? to install flux but I am getting an error like ./setup.py: command not found please guide me soon. Thank you
1
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1answer
19 views

System displaying “E” as “H” (?) from different font (?)

This is weird - and it just turned up yesterday. I'm on Ubuntu 14.04 LTS, and fairly vanilla. As of yesterday, the system wants to display the character E as H. Here are two examples. First, the ...
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2answers
68 views

Automatic installation of NVIDIA CUDA and NVIDIA drivers

My system does not have an nVIDIA card installed on it, and neither did I execute any command to install the same. However, the upgrade check lists the installation of the nvidia driver (331.113). ...
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9 views

running ubuntu version 10 or higher have a messed up display

I have hp dv6707us with AMD64 1.9ghz 2Gb memory, I can run ubuntu version 9 with no problem but updating to version 10 or 12 my display is messed up. The suggestion to go to systems and look for Chips ...
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0answers
19 views

Ubuntu crashing the display , but not feeling any lag

The Ubuntu display is crashing always, some times i cant able to read a text document, Due to this crashing lines.
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2answers
40 views

Error Installation of Ubuntu 12.04 LTS of display

I've installed Ubuntu 12.04 LTS in my Windows. My PC Specs: Proc : Intel Core i3 @3.3GHz Memory : 4GB VGA : AMD Radeon HD 5500 Series. But I got a problem, my Ubuntu is in error and the display is ...
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0answers
10 views

minor display problem for firefox in ubuntu 14.04

Look at the top of Firefox .there is an unknown symbol with heading.I am a noob.please help me. this is starting to annoy me.
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0answers
30 views

Nothing on screen except for the background picture after logging in

I was using two monitors last night and now when I turn it on and log in the second monitor is mirrored and nothing is on my desktop. If I try to open something from the terminal it says it cannot ...
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0answers
31 views

Dual Screen error “gdbus.error:org.gtk.gdbus.unmappedgerror.quark._gnome_2drr_2error_2dquark.code2”

I am having trouble with my laptop when trying to extend my desktop. For a long time (a couple of months) I could extend it fine. However (either after installing CUDA for coursework, or after an ...
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0answers
15 views

monitor problem

i have a laptop with non working screen so I put an external one , after this I put the latest UBUNTU. the problem is that I want only the external screen work, but cant do it, if I open SKYPE this ...
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0answers
74 views

14.10 Dual Monitors are displayed as distorted single screen mode

I have very recently updated my Ubuntu OS from 14.04 to 14.10. I am running on an optimus enabled laptop, with Intel 4000 graphics and an nVidia 640M. *-display description: ...
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2answers
25 views

My display will suddenly freeze

Ubuntu has been doing this for years. Usually I would just give it time and it would catch back up with itself (5 minutes or so). Recently, that hasn't been working. Essentially it's as if the entire ...
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0answers
32 views

Resolution problem and xrandr doesn'r solve

I've got a problem on my macbook air, intel hd4000, 1440x900, linux ubuntu 14.04, lightdm, kde. I was playing (in a stupid way) with resolutions, and i setted a resolution which doesn't work with x ...
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1answer
34 views

how to make ubuntu 14.10 recognize Dell u2312hm screen?

I just installed 14.10 on a new computer but it does not recognize the display (dell u2312hm) I tried installing the NVIDIA driver 331.89 but it did not help. Any suggestions? Thanks,
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0answers
13 views

take a lot of time to switch to external monitor

Afer setting up Xubuntu14.04 LTS on my dell laptop i have a very weird problem: It takes a minute or so for external monitor to "wake up" (i.e. after I connect to it, it immediately displays that ...
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1answer
17 views

Locked sceen does not blank 14.04

When my screen locks, either with inactivity or Ctrl-Alt-L, it never blanks. After 12 hours of inactivity it still shows the login screen on top of the desktop wallpaper. I've watched the blanking ...
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1answer
144 views

How do I turn off the display [duplicate]

Is there any key kombination or terminal code that turns the display off? It should work like when you lock the screen: As soon as you move the mouse the display should turn on again (without the need ...
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0answers
27 views

Ubuntu 14.04 LTS - display blanks out

I am on trusty LTS and after getting the latest kernel updates on my system, whenever I visit http://google.com/chrome or https://youtube.com my display goes blank. I am not particularly sure what ...
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0answers
35 views

3 displays, 2 connected to GPU, one connected to motherboard

I have 3 displays, 2 connected to the GPU (it is an AMD HD 6790, DVI and HDMI connectors), and another one using my mobo's VGA connector (the one you use when you don't have a dedicated graphics ...
0
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1answer
15 views

Display does not work after preseeded network install

I used the netinstaller and a preseed file to preseed several Ubuntu Server installs. This worked fine, and I can SSH into the machines. However, if I go down to the server room and plug in a VGA ...
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0answers
148 views

Problem on using multiple displays on Ubuntu 14.04.1 LTS

I have a laptop with an Intel integrated graphic card, i.e. id: display description: VGA compatible controller product: Haswell-ULT Integrated Graphics Controller vendor: Intel Corporation ...