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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20
votes
2answers
18k views

How to set the monitor to its native resolution which is not listed in the resolutions list?

After installing Ubuntu 10.04 with my Samsung SyncMaster B2030, native resolution (1600X900) is not found in the list of resolutions.
19
votes
3answers
4k views

notify-osd and dual monitors

I use Ubuntu 10.10 on a laptop, with an external monitor, which is used as the primary. Notify-osd alerts show on the connected monitor, as I want. However, some days ago I removed both gnome panels ...
18
votes
4answers
27k views

How to calibrate the monitor on an Ubuntu system?

What is the procedure to calibrate the monitor and what software to use? Edit: I think what I mean is "colour profile" if that's what it is called. I happened to notice that the same photos look very ...
18
votes
3answers
2k views

Stop an insolent narwhal from “correcting” monitor brightness?

I want total absolute control over the brightness of my laptop's screen. I want Natty to fear my wrath should it dare to presume my desire. Natty's light adjusting minions should quake in terror ...
15
votes
3answers
7k views

Turn off monitor using command line

I am runnning Ubuntu Server on my laptop. There is really no reason for the screen to be on. I have been trying to use this command to turn the screen off: sleep 1 && xset dpms force off ...
14
votes
2answers
29k views

How to see/change screen refresh rate or monitor frequency?

My eyes hurt so I thought I should check the screen refresh rate (monitor frequency), but I couldn't find it. Where is it? (in Ubuntu 12)
14
votes
3answers
3k views

How do I set the native resolution on an HP Mini 210-1004sa?

FYI: My Netbook model is HP Mini 210-1004sa, which comes with Intel Graphics Media Accelerator 3150, and has a display 10.1" Active Matrix Colour TFT 1024 x 600. I recently removed Windows 7 Starter ...
13
votes
4answers
35k views

How to change the monitor's refresh rate?

How do I change the monitor's refresh rate in Oneiric? There is no option to do it in the Displays dialog now. By default it's 60Hz, but I need 75Hz on my monitor. In previous releases there used ...
13
votes
1answer
22k views

Adding a CPU monitor widget in the top corner like in Gnome2

I wonder if you can add a widget or something like it in the top corner (next to volume and WiFi and things like that) that displays current use of CPU and maybe RAM. I know you could add stuff like ...
13
votes
4answers
1k views

How can I make PDFs appear life-size when displayed at 100%?

When I open a letter size PDF and then zoom to 100%, the page physically displayed on my monitor is smaller than a real letter size sheet of paper. How can I make "100%" on the computer screen ...
11
votes
2answers
16k views

How can I get a DisplayLink USB monitor under Ubuntu (any recent version)?

I have a DisplayLink-based external USB monitor, which has both power and data over USB, and seems to work perfectly under Windows 7, but only can display a text console under Ubuntu 10.10, and that I ...
9
votes
4answers
21k views

Adjusting display geometry in a virtual machine?

Running 11.04 beta in a Parallels 5.0 virtual machine, but this question will apply to any virtualization software. Parallels 5 Linux tools (guest additions) don't work for 10.10 and 11.04 and I ...
9
votes
3answers
19k views

How do I set the correct monitor resolution with Nvidia drivers for a monitor that does not send EDID?

I keep having trouble getting the correct monitor resolution - every time I reinstall, I happen to use a newer Ubuntu release and the old tricks I used to know no longer work. Instead of leaving a ...
8
votes
5answers
13k 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
3answers
12k 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 ...
8
votes
2answers
5k views

Manually turn off monitor

Can I turn off my laptop monitor manually and instantly with just a click or a simple terminal command? I just want to turn off my monitor not locking my machine. There is no dedicated turn off ...
8
votes
4answers
39k views

Screen resolution stuck at 1024x768 [closed]

I just updated from Ubuntu 10.10 to 11.04 and have an issue regarding the screen resolution. I have Intel integrated gfx chip and my monitor supports resolutions larger than 1024x768. (in 10.10 I've ...
8
votes
1answer
824 views

Bypass low-graphics mode 12.10 when no monitor connected

I installed Ubuntu 12.10 and have set it to auto login, and have set up permissions to allow remote connections via VNC (using the default 'Desktop Sharing' application offered by Ubuntu). ...
7
votes
1answer
21k views

How to install icinga on Ubuntu 12.04 & Monitor remote host?

How to install latest icinga & icinga-web on Ubuntu Server 12.04 & How to monitor remote hosts ?
7
votes
5answers
1k views

Why can't i choose output sound for each application?

I am using dual monitors, and i want to be able to play a movie with sound on the TV (through vlc or something) and then play youtube og some games with my headphones on my laptop. Is there anyway i ...
7
votes
2answers
2k views

Where can I find an automatic day-night color balance adjuster similar to f.lux/Redshift that works with multiple monitors?

I tried f.lux, and I like what it does (automatically adjust the color balance of your monitors depending on time of day), but it seems to work on only 1 of my monitors. Can I configure it to work on ...
6
votes
2answers
3k views

How to use shortcuts to switch between displays in LXDE?

I mean to switch between the laptop monitor and an external display. I edited /home/user/.config/openbox/lubuntu-rc.xml file to set shortcuts but how to do it for this specific purpose?
6
votes
5answers
37k views

Ubuntu not detecting second monitor

I'm running Ubuntu 12.04 on a Lenovo x61s Thinkpad. As the screen's rather small and I want to do some video editing, I thought I'd plug in a monitor and use that. The monitor is Relisys JM777 (quite ...
6
votes
3answers
16k 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 ...
6
votes
3answers
3k views

Split monitor in two

Is there a way to split a single monitor in two, so that the two halves will be treated as separate monitors? This means that windows should fill half the screen when maximized. Also, gnome panels ...
6
votes
1answer
1k views

I have this weird issue with my monitor. How can I fix it?

I have been experiencing a few problem with my monitor HP TS-19SV even with the newly released Ubuntu 12.04 (although, this had happened before on Ubuntu 11.10, 11.04, 10.10 and 10.04. Basically, from ...
6
votes
1answer
1k views

Is it possible to use more than two monitors?

Is it possible to use more than two monitors in Ubuntu? If so, which graphics cards are known to work for example with three monitors in Ubuntu?
6
votes
1answer
5k views

How do I look up the hsync/vsync values for my monitor?

I'm trying to get my computer to use the correct resolution. For that I need to specify the horizontal and vertical sync values in the configuration file (xorg.conf): Section "Monitor" Identifier ...
6
votes
1answer
1k views

Touch monitors for Ubuntu?

I'm looking for a touchscreen monitor that is at least 19 inches diagonally and is fairly cheap (hopefully a similar price to the Windows 7 touch monitors made by HP, Dell, Planar, etc., which are ...
6
votes
3answers
2k views

How do I rotate my display when not using an X Server?

I have a widescreen monitor that rotates. I'm trying to use it in 'landscape' mode (vertical). This is easy in the GUI. How do I rotate my display when I am not running an X Server or when I am ...
6
votes
1answer
6k views

Getting system to boot in headless mode set-up without display problems

Previously I had Ubuntu 11.04 and I could boot with no monitor attached. Now I have installed Ubuntu 12.10 with autologin and I've found that is incapable of booting correctly if the monitor isn't ...
5
votes
2answers
8k views

How to disable laptop's LCD and use external monitor as only output?

My laptop's LCD broke and I removed it. Now I permanently added a monitor via HDMI. How can I set up Ubuntu 12.10 to only use and show the external monitor and disable the LCD? Right now, I cannot ...
5
votes
2answers
4k views

Automatically kill a process if it exceeds a given amount of RAM

I work on large-scale datasets. When testing new software, a script will sometimes sneak up on me, quickly grab all available RAM, and render my desktop unusable. I'd like a way to set a RAM limit ...
5
votes
5answers
8k views

Second Screen is Rotated in a dual monitor setup

I have a laptop connected to a second monitor using a vga port. No proprietary drivers used. When I go to System Preferences --> Monitor and I turn that on it doesn't look as it should, and it's ...
5
votes
5answers
12k views

Webcam doesn't work in browser…?

I'm running the latest version of Ubuntu, and I have a Dell Sp2009wfd monitor with built in microphone and webcam. I've gotten the microphone working on mumble and on sound recorder, and I've gotten ...
5
votes
1answer
8k views

How to save the current Xorg configuration to Xorg.conf?

I've this situation/hardware on my desktop PC: Ubuntu Linux Oneiric 11.10 (32 bit) Monitor Asus VW222s (22'') 01:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 8800 GS] (rev a2) ...
5
votes
1answer
2k views

How to get 1280x1024 with a BenQ T905?

Problem: Nvidia X-server settings offers me 1152x864 and 1360x768, but not the value 1280x1024 in-between that I need. How can I get the proper resolution (1280x1024) on Nvidia ION with Ubuntu 11.04? ...
5
votes
2answers
2k views

How do I find out monitor make / model?

My friend has recently bought a second-hand vehicle with an in-car computer and it's wired up to a touchscreen monitor on the dashboard (very impressive!). Now, I've helped him install Ubuntu on it ...
5
votes
2answers
3k views

Need to change the resolution options

I've been trying to add my external monitor's native resolution (1680x1050). It does not show up on the GUI "Monitors" I followed the "Adding Undetected Resolutions" section of ...
5
votes
1answer
826 views

How to increase the default screen resolution without a monitor plugged in

i have kinda problem with setting my resolution on ubuntu 10.04 the thing is that i installed the machine and put it away without mouse, keyboard and monitor (i am currently remote with VNC viewer) ...
5
votes
1answer
3k views

Display is cut-off and stuck at 640x480; cannot detect monitor [closed]

I've recently installed Ubuntu 11.10 on my PC and I have a resolution problem. My screen resolution is set at 640x480 (4:3) and I can't see right the whole screen, the windows or the icons. The ...
5
votes
1answer
69 views

Use volume and playback keys without waking the monitor?

Often my laptop is just standing around and just playing music and for the below mentioned actions I don't need to see wat's going on on my desktop. Is it possible to use the volume and playback keys ...
5
votes
2answers
1k views

Using an iPad or Nexus 7 as an Ubuntu Second Monitor

Is there any way to use an iPad mini or a Nexus 7 as a second monitor through a cable? I dont want something like vnc, I need it to work through the usb cable (or any other cable). I imagine that the ...
4
votes
6answers
29k views

Is there a program that tells ram usage? [duplicate]

Possible Duplicate: How can I monitor the memory usage? I have Ubuntu 12.4 LTS and I need a program that will be able to monitor my ram usage. Any suggestions?
4
votes
1answer
7k 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
4
votes
2answers
7k views

see my desktop on two monitors Lubuntu

Ok I have an ascer aspire with a AMD Radeon HD 6320, when I try to connect a CRT monitor in to it I can see the same desktop in the 2 monitors. I want to see in the 2 monitors se same desktop as a ...
4
votes
1answer
5k views

How do I configure a displaylink USB monitor?

I have seen many pieces but not a comprehensive guide to fix what must be a very common problem, particularly in Ubuntu 11.10 where there is no xorg.conf file. Is there an easy how-to somewhere (for ...
4
votes
2answers
3k views

Prevent external monitors from shutting off when laptop lid is closed? [duplicate]

Possible Duplicate: How can I tell Ubuntu to do nothing when I close my laptop lid? I'm running my laptop essentially as a desktop, I have two external monitors hooked up, a bluetooth ...
4
votes
2answers
3k views

Unable to Resume after Screen has Locked

I am not able to resume a session after the screen has been locked for a long time. This is not a new problem. Similar questions have been posted in the past, two of which are listed below. Black ...
4
votes
2answers
5k views

Using AOC USB monitor on Ubuntu

I have recently moved from Windows to Ubuntu 12.10. I have an AOC portable laptop monitor (Model number e1649Fwu). This monitor works solely through USB. It works fine on Windows, but I cannot work ...