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

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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 ...
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1answer
10 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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71 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 ...
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11 views

Triple Monitor Question 14.04

I am new to Ubuntu, I have an ASUS HD 7770 video card, I left windows mainly for something new, and to use three monitors/ head... I have two on the Desk and a HDMI set up to the TV for client ...
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18 views

Second monitor detected but appear to be “off”

I have been enjoying dual monitors using Xubuntu with Nvidia driver 340.58 for some time now. However, suddenly one of the monitors stops working. In nvidia-setting panel it just appears as "Off" and ...
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27 views

Dell XPS 13 Sputnik3 (Ubuntu 14.04) cannot find display-port

Here is the story. I've used the mini-display port from my XPS13 for about a year with an ASUS 2560x1440 res external display, via a mini-DP to DP connector. This has worked fine for 1 year. This ...
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45 views

Lubuntu 14.04 - Connect projector to Asus Eee PC 1000HD

I have replaced windows XP with Lubuntu 14.04 on my mum's old netbook (Asus Eee PC 1000HD). She uses it mostly for presentations, so she connects projectors pretty often. Unfortunately, there is a ...
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1answer
16 views

How to black out screen when watching video/playing game on other screen?

I have a 2 display setup. When I have something full screen on one screen (such as a game or a movie), I often want to black out the other screen so that it's not a distraction. Is there any easy way ...
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82 views

Nvidia Prime does not detect external VGA monitor after updating Ubuntu-drivers-common and xorg

This post is a followup to another post I had about accessing my external monitor after upgrading my ubuntu-drivers-common package. I had found the cause to be this bug, but now that a fix is ...
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7 views

Lynx non-English fonts display and log in problem

i just installed Lynx browser ( which doesn't have GUI and executes in terminal and i use G u a k e Terminal) but the terminal does not show Persian fonts which have right to left alignment. it ...
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40 views

Intel q35 Screen Artifacts. Ubuntu 14.10 How to fix?

https://www.dropbox.com/s/lpb8f40hfjsg9w0/Screenshot%20from%202014-11-09%2019%3A54%3A13.png?dl=0 https://www.dropbox.com/s/fkzv64cpkpf7qqk/Screenshot%20from%202014-11-09%2019%3A54%3A30.png?dl=0 ...
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11 views

Extended Desktop broken into 4 halves on 2 monitors

I'm having this issue on my HP Envy 17-2070nr with a Radeon HD 6850M. I'm using Ubuntu 14.04. Here's info. for anyone who can help: Extended desktop causes internal monitor to show 1/2 of its own ...
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27 views

Ubuntu 14.10 Display Issue - How do i fix? (My Other answer wasnt really unanswered. Please support me!) [duplicate]

https://www.dropbox.com/s/lpb8f40hfjsg9w0/Screenshot%20from%202014-11-09%2019%3A54%3A13.png?dl=0 https://www.dropbox.com/s/fkzv64cpkpf7qqk/Screenshot%20from%202014-11-09%2019%3A54%3A30.png?dl=0 I ...
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31 views

How to get dual monitors working on Mac Pro black cylinder

How do I get dual monitors working on a Mac Pro cylinder? I have two thunderbolt connected displays (one on a minidisplay port to dvi connector, and the other on a mini displayport to vga connector). ...
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29 views

Display Contrast Ubuntu 14.0.4 x32 on Elitebook2560p

I downloaded icc-profiles and icc-profiles-free from apt-get and this gave me a few more options inside Gnome-Color-Manager / but I still have no option to Calibrate (button is disabled) and all of ...
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53 views

Display freezes temporarily with nvidia drivers on 14.04

I'm having a problem with my ubuntu 14.04 LTS laptop, with nvidia drivers. Every so often the display freezes. There doesn’t seem to be any pattern to it and the computer keeps running fine. I can ...
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1answer
24 views

'Unknown Display' in Ubuntu 14.04

I just installed Ubuntu 14.04 and the first thing I noticed was that in the display settings, my monitor was not recognized. I tried every solution that I found in the forums but nothing actually ...
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1answer
100 views

Wrong resolution - cant change

I'm not new to Linux, but I newly installed it on this PC. Its been as smooth as always, but I have a problem with the display. It runs in 1024x768 on a 1920x1080 monitor, which is not exactly fun. In ...
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21 views

CLI: Defoult monitor and it's resolution

To keep long story short: I have 3 monitors plugged into my computer. Main (1920x1080) via DVI, secondary (1440x900) via D-sub and a TV (720p) via HDMI. I want to have CLI (and possibly GRUB) on the ...
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34 views

Two displays detected for the built in screen, no external monitor capability

I'm using a Lenovo W530 and I have a problem after recently updating 14.04. I'm using the nvidia-331-uvm driver which was doing fine until I updated yesterday (10th November 2014). Now my laptop ...
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14 views

NVidia SLI Mode

Im trying to figure out how to enable SLI on my device. i used this command theshadowone@LinuxBox:~$ nvidia-settings | grep SLIMode ** Message: PRIME: No offloading required. Abort ** Message: ...
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37 views

system freeze after monitor power save

I have a Lenovo ThinkPad running Ubuntu 14.04 LTS with a DELL U2414H connected via the Display Port as a secondary display. When the monitor goes to power save mode and I try to wake it up, I get the ...
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73 views

14.10 two monitors with GeForce GTX750

I have some problem with my desktop pc and Ubuntu (both 14.04 and the newest 14.10). My pc has two monitors: the first one is old and has only VGA (D-SUB) plug - I plugged it to Intel Graphics ...
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108 views

Ubuntu 14.10 screen artifacts - How do I fix?

Please tell me how do I fix this problem? I have no graphics card for your information 00:00.0 Host bridge: Intel Corporation 82Q35 Express DRAM Controller (rev 02) 00:01.0 PCI bridge: Intel ...
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31 views

configure Intel integrated graphics in thinkpad to drive external 4k display only, via HDMI, using xorg.conf

Using the interactive displays configuration tool from the Ubuntu desktop, I have successfully configured this Thinkpad X1 Carbon (2014) with its integrated Intel video to drive an external display at ...
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9 views

Monitor not displaying window text

I just installed 14.04 on a Dell Dimension XPS system using a Dell LCD monitor (Model E177PFf) and while the display is good overall, I've discovered that not all text contained in a window displays. ...
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1answer
40 views

Ubuntu Display Error Chrome Ubuntu 14.04.01

I have a Problem. My Display making a Blackscreen if i opening the Chrome Webstore or something from Google. I become a Blackscreen and dont can become it on. Help Me. (Oh i have a Problem with Ubuntu ...
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27 views

Ubuntu refuses to recognize my external monitors

I'm running Ubuntu 14.04 as a guest OS using VMWare Fusion 6. My machine is a MacBook Pro with and Intel Iris Pro graphics chipset, running OSX Yosemite. I have two external monitors plugged in to the ...
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71 views

DisplayPort monitor not detected if switched off and on again

I am running Ubuntu Desktop 14.04 on a desktop PC with a Nvidia GTX 660 connected to a HP LP2475w 24" monitor over DisplayPort. It boots up fine, but if I switch off the monitor and switch it on again ...
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43 views

$DISPLAY env var gets cleared at random times

Stock Ubuntu 14.04 Trusty. I seem to regularly experience the $DISPLAY environment variable getting cleared for some reason I don't understand. Basically everything will work just fine until it's ...
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4 views

Job of Gallium3D on Linux

Question 0: when a Linux OS is up and running with a hardware graphics accelerator supprt (VGA Card Support), what is the job of software like Gallium3D required to do? Does it pre process the ...
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20 views

How do I completely update my ubuntu software?

This is a dual fold question. May someone guide me to the right source? When m Ubuntu was instailled, it overwrote Windows 8, but partially. I wanted Windows 8 completely gone. I can tell that Ubuntu ...
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1answer
11 views

changing the display properties of grub

I would like to remove the rectangular box and the instructions displayed along with the (entries) in grub that appear during the boot.I searched for the grub design file but i couldn't find one apart ...
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Ubuntu 14.04 display appears gibberish on my lg rd405 laptop

i installed Ubuntu 14.04 on my LG RD 405 laptop which contains ATI Radeon Xpress 1250 graphics card. The issue is that the display appears gibberish and distorted. I have attached a screenshot my ...
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1answer
28 views

Display issue with Ubuntu 12.04

I updated from 10.04 to 12.04 and am seeing the following screen which is very disturbing. Not sure what the issue is. Is this a known issue?
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245 views

Screen resolution messed up on Ubuntu 14.10 with Nvidia 331 driver

I am using the Nvidia 331.89 (nvidia-331) driver as recommended by Ubuntu 14.10. When I boot my machine using an external monitor and my laptop's screen on, the displays are mirrored by default with ...
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1answer
42 views

Unplug external monitor, laptop display not coming on

In Ubuntu 14.04 if I unplug my monitor from HDMI and open my laptop, the built-in LCD doesn't come on. Only after hard rebooting am I able to get back to a state where my laptop screen is the primary ...
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84 views

2nd Monitor not displaying anything with Multiple X Screens

Specs: Unity Nvidia Quadro K2200 - 340.46 Drivers Multi-Monitor: ASUS P287Q (4K main, DP 1.2) and Generic Lenovo Thinkvision 1600x1200 monitor (DVI) Since I have different DPIs on both screens, I ...
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44 views

xrandr and multiple displays

So I'm pretty new to Ubuntu and Linux in general. I have Ubuntu 14.04 installed on my laptop and want to attach another monitor. The native laptop display is running at 1366x768 and my monitor is ...
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1answer
19 views

Laptop display stopped working with correct resolution for no reason

I'm, running latest xubuntu on a laptop with 1366x768 resolution and Radeon 4330 card. Default radeon driver. Never made any manual config changes, everything ran smoothly for a couple of months after ...
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53 views

How change display resolution settings using xrandr ubuntu 14.04

How can I change my netbook screen resolution permanently ?. It is what sreen after xrandr command Screen 0: minimum 320 x 200, current 1024 x 600, maximum 4096 x 4096 VGA-0 disconnected (normal ...
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28 views

Ubuntu 14.04 Screen Issues

I am having some screen issues when I try to install 14.04. I get this every time I try and install ...
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25 views

Unable to connect to X11 display. is $DISPLAY set? - Yes, it is

I'm trying to run this in my /etc/init.d/rc.local. I had to manually add the exit 0 because it wasn't there by default if that makes any difference. cd /home/john/xcape && ./xcape -e ...
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Chrome 38 displaying weird colors and Fonts ubuntu 12.04 LTS

I have updated google chrome from 34 to 38 stable version by downloading .deb from their official website. After the update chrome is giving weird Display. I'm on Ubuntu 12.04 LTS . This colour ...
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19 views

Display is broken after login [duplicate]

I have big problem with settings $DISPLAY and xorg. After login to my account screen is black for few seconds and back to login page again. It is only for one account on my computer and I think I need ...
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42 views

Set user-created display mode as default for device with xrandr

On my notebook, for VGA connections only a resolution of 1024x768 is detected. This I by creating an ~/.xprofile file xrandr --newmode 1680x1050 146.25 1680 1784 1960 2240 1050 1053 1059 1089 ...
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50 views

Brigthness Display and Power Management

Please help. I'm using Ubuntu Gnome 14.04LTS, I need to tweak my Brightness Display to consume long battery life. I want to have 50% Brightness Display when I'm Unplug and 100% Brightness Display when ...
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White grey strip on right hand side of display

I have updated my ubuntu from 12.04 to 14.04 few weeks ago. I am using Dell Inspirion N5010. From past week i am noticing white strip on right hand side of my display. It remains there from boot up ...
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42 views

Brightness and Power management

I'm using Ubuntu Gnome 14.04LTS. I want to tweak my Brightness setting to consume long battery life.I want to have 100% brightness when Im on Plug and 50% brightness when Unplug However when I go to ...
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22 views

My PC's display is being detected as Laptop in Ubuntu 12.04

Recently my PC suddenly stopped booting. It was stuck at the splash screen. So, I followed various articles on the web and finally could fix it. Now, the issue is that my PC's resolution is set to ...