Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)
Questions tagged [display]
3857 questions
62
votes
6 answers
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' app, and then change the settings and confirm.…

Agmenor
- 16,214
40
votes
11 answers
Change Primary monitor
How do I change my primary monitor without using the command line?

trampster
- 11,342
40
votes
8 answers
How to force Ubuntu to detect external display?
My laptop recognises external display devices if I connect them before booting the system, but many times it doesn't if I connect while the system is running. In this case, rebooting naturally solves the problem.
Is there a way to force Ubuntu to…

aasitus
- 501
20
votes
6 answers
Missing letters in menus and folder names
The names of my folders and the menus are not displayed correctly (even the tabs names in firefox). A lot of letters are missing. When cross over with the mouse pointer, part of them are correctly displayed. Contrary, the content of askubuntu site,…

Dumitru Cristian
- 635
11
votes
2 answers
Wireless Display on Ubuntu 18.04
I have an Smart TV in "Wireless Display" mode. How do I use that remote screen as an remote display (dual) to my laptop screen?
Example: extended wireless display on windows

Nitescu Lucian
- 1,382
- 3
- 11
- 24
11
votes
2 answers
Brightness flickering on Lenovo Yoga 720 | Ubuntu 18.04
I have a Lenovo Yoga 720 and am running Ubuntu 18.04. The screen changes brightness automatically every 5-10 sec. This does not happen with Ubuntu 17 or Windows 10 (dual boot). Please assist.
description: Convertible
product: 81C3…

Brendan C.
- 111
- 1
- 3
7
votes
1 answer
Why are my display settings not persistent?
Every time I reboot my laptop, even if I haven't unplugged the external monitor, it sets the external monitor back to overlapping with the laptop screen. I want them to stay 'side by side'.
Running Ubuntu 12.10, with Unity for my environment, and…

Curtis Jewell
- 71
- 3
5
votes
3 answers
Strange colors in Image viewer and firefox
I've recently stumbled upon incredibly irritating issue with color display in firefox and image viewer. Some colors are just off, like red instead of blue etc.
This problem doesn't exist in Chromium, or most other apps I've been using.
What is the…
user158049
5
votes
0 answers
How to set fractional scaling to 110%
I am on Ubuntu 20.04. Fractional display scaling of 125% is too big for me and 100% is too small for me. Is it possible to set it to 110%? I couldn't find an option anywhere.

Pongal
- 51
5
votes
2 answers
How can I protect my OLED screen from burn-in?
Is there a utility that can prevent burn-in on OLED screens for Ubuntu 18.04? Something that automatically prevents the screen from showing the same pixel value for too long?

Daniel Patru
- 163
- 1
- 5
4
votes
3 answers
xcalib is not working on ubuntu 14.04
I installed xcalib using:
sudo apt-get install xcalib
Then I could invert color using:
xcalib -i -a
However after I restarted my computer this is not working. Why?
I tried removing xcalib using both:
sudo apt-get remove xcalib
and
sudo apt-get…

Inspired_Blue
- 601
- 2
- 9
- 26
4
votes
2 answers
How to enable just Second Screen Only?
For some reason i need to use only second screen. I have attached laptop with LCD monitor but now both screens are on while i just need one, I cant figure it out i have looked for it but didn't find a thing about it.
Help !

Waqas
- 640
4
votes
3 answers
Setting a display's backlight brightness to be lower than is possible via the normal brightness controls
By normal brightness controls I mean the accelerators on my laptop's keyboard that seem to integrate with Unity.
In a dark room, my screen is quite bright, even on the lowest setting. Can I override this?
I tried setting it explicitly via both:
sudo…

Drew Noakes
- 5,708
3
votes
1 answer
Switching from old CRT monitor to new LED monitor
I have been using a Dell CRT monitor for years. Today, I bought a new Samsung LED monitor, and was under the impression that simply switching the monitors should work.
However, when I disconnected the old one and connected the new one, a message on…

Masroor
- 3,143
3
votes
1 answer
Disconnected external monitor stays the primary monitor after disconnecting
If I disconnect my external monitor, simply by unplugging the HDMI connector, Ubuntu seems to think it is still there. Windows stay there, and and if I open new windows they are shown there, ie I cant see them!
Is there a way to fix this?
I run…

Mads Skjern
- 1,026
- 4
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