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

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22
votes
5answers
19k views

What is the function of the “Sticky edges” on/off setting in displays?

I have installed Ubuntu 12.04 (Precise Pangolin). If I open System Settings >> Displays there is a new (?) on/off button for a setting named Sticky edges. Can someone tell me what this setting ...
18
votes
3answers
57k views

How to add display resolution fo an LCD in Ubuntu 12.04? xrandr problem

I am fresh for Ubuntu and Linux in general. I have installed Ubuntu 12.04 and stuck trying to setup correct resolution for my LCD display. The native resolution for the LCD is 1920x1080 here is the ...
18
votes
4answers
10k views

Is there a software utility to adjust screen gamma/brightness/contrast?

I use to work at night and it is eye-hurting to watch at lightbulb-bright screens (I've got two - laptop's built-in panel and an external 18-inch CRT) in a dark environment. So I adjust my screens to ...
18
votes
6answers
7k views

Is there a way to autodetect when a display is disconnected?

I am running Ubuntu on a Dell Latitude with the latest Nvidia drivers. Basically what I want is when I disconnect my external display that everything goes back to the main one without having to change ...
17
votes
4answers
21k views

Ubuntu 12.10 “Turn screen off when inactive for: Never” still turns off

After a fresh install of Ubuntu 12.10, my screen still goes off after about ten minutes. I've been to the Brightness and Lock control panel. The Turn screen off when inactive for: setting is set to ...
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 ...
15
votes
8answers
14k views

Change Primary monitor

How do I change my primary monitor without using the command line?
14
votes
3answers
3k views

How to turn off the display via the command line?

Is there a way to turn off the display (enter power saving mode) using a command? For example, when the computer is inactive for a specific interval, the screen turns off to conserve energy. Is there ...
14
votes
6answers
12k views

How to run two X sessions at the same time?

I would like to run two X server instances at the same time. One would be an interactive session using the mouse and keyboard attached to the computer. The other would be a 'virtual' session that I ...
14
votes
4answers
4k views

Why does my Thinkpad brightness control skip steps?

The problem: there are 16 brightness levels on my laptop, but pressing hotkeys Fn+Home, Fn+End adjusts brightness 3 steps at a time (e.g. from 0 to 3, or from 15 to 12). I find it important to notice ...
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
1answer
4k views

How would Ubuntu work on an Apple retina display?

Apple has announced a laptop with "retina display" = 2880x1800 pixels resolution on 15 inches. If one were to load Ubuntu on such a machine, it would probably be unreadably micro-texted as long as ...
11
votes
2answers
4k views

Disable screensaver while watching flash videos

I generally watch lot of lengthy videos on YouTube. I always experience a problem because the screensaver is activated every 5 minutes. I would like to know how to disable the screensaver while ...
11
votes
2answers
759 views

How should I handle multiple monitors when I regularly connect and disconnect different monitors and projectors

I'm moving from a macbook pro (with MacOSX) to a lenovo T430 running ubuntu 12.10. I use the laptop for work, and work from home regularly. I have an external 30" monitor at home, an external 23" ...
10
votes
4answers
12k views

How do you change brightness, color and sharpness from command line?

I am controlling my PC with SSH and scripting. How can i change the brightness, color and sharpness from command line? Try 1: failed $ sudo redshift -t 5000:5000 -g .5 Cannot list GNOME panel ...
10
votes
2answers
6k views

How to enable sub pixel hinting?

Fonts are displayed a little bit blurry on my TFT screen. I fixed this in previous Ubuntu releases by enabling sub pixel hinting in the font settings. But now I can't find any font settings dialog in ...
10
votes
4answers
23k views

How do I use a DisplayLink monitor?

I'm trying to connect an external monitor to my laptop via a DisplayLink USB adapter. When I plug in the USB cable, the screen turns bright green. This apparently indicates that the udflib displaylink ...
10
votes
7answers
1k views

Ubuntu Desktop shifted to right

I am using Ubuntu 12.04 (precise) Kernel : 3.5.0-18-generic I am encountering a strange problem, my whole desktop has shifted to right. This happened after I restored my system, I was getting a blank ...
9
votes
6answers
3k views

How can I disable backlight when I lock the screen?

When I lock screen, the display does turn black but the display isn't completely off. There is some light coming out of the display in screen lock mode but it get turned off when inactive for 10 ...
9
votes
2answers
2k views

Does redshift need an active internet connection to work?

It seems redshift doesn't run without an active internet connection. If so, is there some way it could be run when there's no connection to the Internet?
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
6answers
2k views

Will Wayland have network transparency?

The Xorg server/client architecture allows for network transparency which means it is possible to start x-clients on a remote machine and display the GUI on the local machine (i.e. via x-forwarding by ...
9
votes
5answers
11k views

How do you change your screen's color temperature in Ubuntu?

I edit my photos on my laptop (yes, I know they have crap displays) and I recently had to replace the screen because the old one just randomly died. The old one had decent color reproduction by ...
9
votes
2answers
19k views

adjust resolution on Ubuntu Server 10.04?

Installed Ubuntu Server 10.04 on an old laptop and I noticed that the system is trying to show the CLI below my screen. This means that if I run a script or a program with a bunch of output, once it ...
9
votes
3answers
4k views

How to get Lilliput USB monitor working?

Okay, I just got a Lilliput 7" USB Monitor: Unfortunately, I am having some trouble getting it to work in Ubuntu. It is a DisplayLink device, so it should work in Ubuntu. Here is the output of ...
9
votes
2answers
7k views

Using a DisplayLink USB video adapter on Ubuntu 12.10

The line of USB video adapters made by DisplayLink has a somewhat sordid history under Linux. In past Ubuntu releases, the process of getting them to work has been somewhat difficult, inspiring a ...
8
votes
5answers
7k views

Ubuntu resolution with Ultrabook

I installed 12.10 to Asus Zenbook Prime UX31A. Now I face a resolution problem. The default resolution is 1920x1080. But everything is too small with this resolution. Icons, Unity, file system, ...
8
votes
2answers
5k views

Triple-head on a Lenovo T520

Lenovo T520 with integrated Intel HD graphics + a NVidia card (Optimus) Ubuntu 11.10 on the computer. I would like to use the built-in screen plus two external screens. This PDF indicates that it is ...
8
votes
1answer
7k views

list existing X display names?

How do I get a list of current X display names? Apart from being a useful thing to know, I want this so that (hopefully!) I can use xcalib -invert -alter as suggested in this question to invert the ...
8
votes
3answers
13k views

What is the use of nvidia-prime?

Yesterday, I was very excited about initial support for optimus using nvidia-prime package on Ubuntu 13.10. It seemed to be the way to replace my bumblebee + hybrid-screenclone configuration, since ...
8
votes
2answers
281 views

How to provide second monitors resolution to application?

I have a dual monitor setup, with the basic TwinView settings from my Nvidia-card (550 Ti). One monitor is my primary display (1600x900) and the other is my TV (1920*1080). I have arranged XBMC to ...
8
votes
3answers
9k views

External monitor set as primary even when disconnected from laptop

My Lenovo X200 laptop has developed a problem recently whereby I get a blank internal screen on booting into Ubuntu 11.10 (display works normally during boot and I get a moment of desktop before it ...
7
votes
2answers
8k views

Ubuntu Hyper-V Guest Display Resolution

Good afternoon, I am trying to set up an Ubuntu guest on a Hyper-V server. I am relatively new to Linux so please bear with me, the VM is a test machine to get the hang of things and give Ubuntu a ...
7
votes
1answer
11k views

How can I rotate my display in the most easy way?

I am the lucky owner of a pivot monitor, which screen can be rotated (physically). What is the easiest way to make my display turn when I turn my monitor? For the moment I first launch the 'Displays' ...
7
votes
2answers
2k views

How can I solve display glitches and poor performance with ATI fglrx driver on my ThinkPad X100e?

I noticed that video performance on my Thinkpad X100e was very poor compared to Windows 7, so I installed the ATI fglrx proprietary drivers by using the "Additional Drivers" dialogue box. The system ...
7
votes
1answer
1k views

Is it possible to have two different DPI configurations for two different screens?

I'm using Ubuntu 12.04.3 with NVidia drivers (319) for my Quadro K2100M graphic card, and when I switch my main 3200x1800 laptop screen to mode 1920x1080 (using nvidia-settings), the display goes ...
7
votes
2answers
2k views

How to set up multiple GPUs (12.04)?

I have two GPUs: one Intel i915 integrated, and one NVIDIA 560 Ti. This is NOT a hybrid setup, nor a laptop. In Windows 7, each card is connected to a different monitor, with the NVIDIA doing any ...
7
votes
3answers
3k views

Fn+F8 does not switch displays on a Dell E6410

I recently upgraded to Oneric and found that Fn+F8 does not switch displays on Oneric, Dell E6410, Nvidia. I frequently run presentations and need to switch between projector and laptop with minimum ...
7
votes
1answer
568 views

Quitting Braid causes dual monitors to switch to mirror mode

I have 2 monitors in my desktop. The one has a smaller resolution than the other (don't know if it matters for this issue). From Display I have disabled mirroring, so the first monitor continues to ...
6
votes
3answers
3k views

Workspace 1 to laptop screen and Workspace 2 on HDMI connected TV?

I have two workspaces, which I need to function as below: Usually they function as usual two workspaces, but... When I connect a HDMI cable to my system I want to have workspace 1 display on laptop ...
6
votes
2answers
9k views

Unknown monitor, intel driver, want to set VGA resolution to widescreen TV

I have a Sony Bravia LCD television, which is now plugged into my laptop using a VGA cable. I am running an HP Compaq laptop, with a video driver of: 00:02.0 VGA compatible controller: Intel ...
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
1answer
678 views

Installing or faking a x11 session

I have a headless Ubuntu-server running at work, and I connect to it from my home Windows machine through Putty. I've logged in with putty, and I need to run a program back at the server (a java ...
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
6k views

Vinagre only gives 800x600 RDC resolution, how to increase?

Using Vinagre on Ubuntu 11.10, when I RDC into a remote Windows XP machine, I only get a 800x600 resolution on the remote display. I can't increase it on the Windows machine, it's stuck at 800x600. ...
6
votes
3answers
457 views

Switch windows only in current workspace and display

I have recently acquired a second display for use with my laptop running Ubuntu with xfce and compiz. However, one thing that has been bugging me is window switching: my second monitor has 2 windows ...
6
votes
6answers
11k views

Why does my display keep turning off every 10 minutes?

I have installed Ubuntu 11.10 (Oneiric) in VirtualBox as well as virtualbox-guest-additions . The display resolution adapts to the size of the window as expected, but the display turns off after 10 ...
6
votes
2answers
3k views

where does gnome-display-properties save the different configurations?

I use gnome-display-properties to configure the external screens that I attach to my laptop at home and in the office. Gnome-display-properties cleverly remembers which screen is which, and ...
6
votes
1answer
6k views

Using Intel Wireless Display (WiDi) in Ubuntu

My Thinkpad X1 Carbon apparently supports Intel WiDi. I believe this should, in theory, allow me to share my screen with my Sony Bravia TV which supports Miracast. Is it possible to make use of ...