Questions tagged [monitor]

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.

1102 questions
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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 The problem is I get the following error unable to open…
AngryBird
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83
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9 answers

Display monitor info via command line

Is there a way to query monitor information from command line? For example, get monitor model, similar to e.g. what lspci does for graphic card info, or whether it's currently on or off, things like that. If possible, what kinds of basic information…
icyrock.com
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70
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2 answers

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)
HappyDeveloper
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66
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5 answers

How can I get my laptop's monitor size?

What is the Ubuntu linux command to find laptop monitor size? I want to know in inches if possible. Thanks
user111
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62
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9 answers

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 differently indeed on my home laptop and on other…
kounryusui
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60
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6 answers

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 monitor button on my machine.
Nur
  • 4,131
53
votes
4 answers

How do I list connected displays using the command line?

Is there a command that will list displays connected to the computer? Specifically, I'm looking to find out how my external monitor is being detected by the system when connected by HDMI cable and what it's (not sure of the correct term here)…
Erland
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49
votes
2 answers

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 viewing a Virtual Console / Terminal.
Kurtis
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49
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3 answers

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.
Riyaz Mohammed Ibrahim
  • 3,790
36
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5 answers

How can I reset my display settings through terminal?

I am using Ubuntu 15.10. I accidentally changed the size of the interface to maximum. Now my folders and windows are too large and don't fully fit the screen so I cannot revert the effect. Is there any way to reset the display settings to default so…
alexanast
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35
votes
4 answers

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 should fill half the screen.
Kalle Elmér
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35
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17 answers

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 old). When I plug it into my other computer,…
Julian Le Saux
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33
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3 answers

How do I measure dimensions on screen?

I have an image on screen, and I want to measure its width. Of course I can use a ruler , but that's whimsical and slow. Is there something where I can click a shortcut key, drag out an area, and it will tell me the height and width of that area?…
dayuloli
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31
votes
4 answers

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 to be such an option in the Displays dialog. Edit -…
Körtepálinka
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28
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6 answers

How can I get a DisplayLink USB monitor work under Ubuntu?

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 can only use when I am actually switched to it.…
jfmessier
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