Questions tagged [display]
Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)
3,878
questions
185
votes
12
answers
320k
views
Enable fractional scaling for Ubuntu 18.04
I recently installed Ubuntu 18.04 and discovered that the fractional scaling option that was in 16.04 is no longer there. 200% is too big for my display, and this answer didn't work for me (the ...
- 2,221
178
votes
12
answers
236k
views
Is it possible to have 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 ...
- 2,539
123
votes
11
answers
254k
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
The ...
- 1,231
91
votes
6
answers
288k
views
Ubuntu as Miracast Sender/receiver
I couldn't find anything about Ubuntu acting as a Miracast receiver or sender.
Can it work at all?
Are there hardware prerequisites?
Is WiFi a requirement or can it work over LAN or another kind of ...
- 2,305
89
votes
5
answers
92k
views
Different display scale settings - 18.04
I have a Dell monitor set to a scale of 200%:
I then set the laptop built-in display to 100%:
However, if I then switch back to the Dell monitor settings, the scale there has reverted to 100%.
Is ...
- 2,553
71
votes
3
answers
107k
views
Reporting: I can't open settings in ubuntu 20.04 LTS
I am a regular user of Ubuntu. I recently moved on from Ubuntu 19 for 20.04 LTS, but after the upgrade the settings are not opening. Besides the settings, the display settings and change background ...
- 811
68
votes
6
answers
86k
views
Is it possible to have f.lux (software that adjusts display's color temperature) on Ubuntu 14.04?
f.lux is software which adjusts temperature of your display according to time of the day. Is it possible to make f.lux work in Ubuntu 14.04? If so, maybe you can share your knowledge or point me to a ...
- 929
64
votes
4
answers
153k
views
Samsung TV "Mirror Screen"
I would like to show the screen of my Ubuntu laptop on a Samsung TV.
The TV has a menu entry called "mirror screen".
But up to now I found no way to get it working.
I need a wireless way to us the ...
- 1,397
62
votes
6
answers
186k
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' ...
- 16.3k
59
votes
2
answers
210k
views
How to add display resolution for an LCD in Ubuntu 12.04? xrandr problem
I am new to Ubuntu. I have installed Ubuntu 12.04 and am stuck trying to set up the correct resolution for my LCD display.
The native resolution for the LCD is 1920x1080
here is the output from ...
- 591
57
votes
6
answers
59k
views
Ubuntu 17.10 secondary display issue, missing menubar, launcher and bar on top of the screen displays date time and network status missing
Installed Ubuntu 17.10 today, menubar, launcher and the bar which indicates time/date/network connection status are missing.
I am using the secondary display and connecting the laptop to the ...
- 671
51
votes
10
answers
72k
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 ...
- 57.5k
47
votes
3
answers
263k
views
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 ...
- 671
46
votes
12
answers
251k
views
How do I fix overscan on my HDMI HDTV?
I've connected a HDTV with HDMI on my Radeon 4670, using the open source ati driver. However there is "overscan" which cuts off a bit of each edge of the screen, about the size of the gnome-panel. How ...
- 1,455
45
votes
8
answers
105k
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 ...
user25165
45
votes
2
answers
83k
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 ...
- 593
44
votes
6
answers
118k
views
How do I save my new resolution setting with xrandr?
I found somewhere in a forum the solution to a problem where the only resolutions available were 800x600 and 1024x768. I managed to get 1440x900, which works very well. Every time I reboot, this mode ...
- 443
43
votes
4
answers
74k
views
Ubuntu appears very small at 1080p, text almost undreadable
I have a 15" Dell Studio XPS with a 1080p screen. Everything seems tiny with 1080p, in 720p everything is fine but just looks very low-res.
So I definitely want to get the full resolution the ...
- 633
40
votes
11
answers
186k
views
40
votes
8
answers
117k
views
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 ...
- 501
39
votes
7
answers
37k
views
Fractional Scaling does not work properly ubuntu 20.04
Just updated to 20.04 and tried the fractional scaling on my laptop. That does not work at all. Whatever scaling I use it just sets 200%. I googled it and it seems works with wayland server only. I ...
- 511
39
votes
7
answers
164k
views
How to enable monitor from terminal?
I accidentally disabled my monitors, so when I log in I land on a blank, back-lit screen. I can open terminals with Ctrl+Alt+F#, so how do I enable the monitor from terminal?
I tried xrandr, but it ...
- 1,121
38
votes
4
answers
175k
views
Unable to set my screen resolution higher
I'm running Ubuntu 16.04.5 LTS on this system
Processor: Intel Core i5-7400
Mainboard: H110M-Gaming3-CF
The problem is the highest resolution it can go up to is 1024x768, which is terrible. ...
- 551
37
votes
4
answers
304k
views
Cannot connect to X Server when running app with sudo
When I am running some software using sudo command it showing error like
cannot connect to X server
For example if I run the following command:
$ sudo gedit /etc/profile
I am getting following ...
- 1,438
37
votes
6
answers
21k
views
Second external monitor not waking up
My current setup is my Dell XPS 9560 (1080p) with 2x 1440p 75hz monitors. Everything works fine on first boot: I turn on the laptop, type in my password, shut the lid and just use the two external ...
- 471
36
votes
7
answers
52k
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 ...
- 5,197
36
votes
5
answers
90k
views
Ubuntu 18.04 Displays Issue -> Unknown Display
As the title suggests, I am experiencing issues with my Display in Ubuntu 18.04.
I have seen somewhat related posts (like this one), but those typically suggest they have several detected displays, ...
- 461
34
votes
5
answers
181k
views
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 ...
- 351
32
votes
15
answers
291k
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 ...
- 321
32
votes
7
answers
76k
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 ...
- 321
32
votes
2
answers
77k
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 ...
- 4,373
30
votes
4
answers
9k
views
How to have a terminal mirrored onto a second screen in a two-monitor setup?
I teach using a two-monitor setup, so what I see in my desktop is different from what my audience can see. This works fine for presentations: while the students see the slides, I can see my notes.
...
- 421
30
votes
7
answers
38k
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 ...
- 32.3k
30
votes
8
answers
68k
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 ...
- 301
29
votes
3
answers
37k
views
Ubuntu command line to change input source on a display monitor?
I have two PCs connected to Dell U3415W monitor, one with ubuntu 14.04 LTS OS with HDMI input and other with windows 10 with DP input. What I want to do is toggle between these two input sources ...
- 393
27
votes
6
answers
91k
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 ...
- 271
27
votes
4
answers
30k
views
Ubuntu "Could not get screen information" after upgrade
I have upgraded from Ubuntu 14.04 to Ubuntu 16.04 and now when I open Display Settings I get the message "Could Not get Screen Information"(here is a screenshot):
There are multiple questions ...
- 625
27
votes
6
answers
31k
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 ...
- 32.3k
26
votes
14
answers
85k
views
External Monitor not working. Ubuntu, nvidia
I'm having a precision 7530 with i7-8850H and NVIDIA Quadro P2000 and using ubuntu 18.04. Now after some time the external monitor connected over displayport (displayport to hdmi cable, where the ...
- 363
26
votes
6
answers
115k
views
How to set the screen resolution in Ubuntu 16.04 64 bit running under VMware workstation 12 player on a Windows 7 host?
I can set the screen resolution manually once I log in using the following command:
xrandr -s 1360x768
but I am not able to make it "stick". Every time I log back in, the resolution for a little ...
- 423
25
votes
4
answers
7k
views
Eye strain after using Ubuntu for some time
I upgraded to Ubuntu 17, and my eyes started to get tired very quickly (e.g. in 40 minutes).
It seems to be some problem with the OS, since it didn't happen with the older Ubuntu version, and it ...
25
votes
9
answers
38k
views
After upgrading to Ubuntu 18.04, display is like zoomed
Last night I upgraded 16.04 to 18.04. After the upgrade when I logged into the account I had been using the display is like super zoom.
Kindly assist with solution.
- 413
25
votes
3
answers
10k
views
How to move active window to another display in XFCE
I use a multi display workspace, I would like to have keyboard shortcut for moving an active window to another display (I don't mean workspaces). How can I achieve this in XFCE? In Unity, I was using ...
23
votes
4
answers
36k
views
Ubuntu 18.04 LTS Display flashes and turns upside down - How to fix?
Upgraded to Ubuntu 18.04 LTS, lately having weird display issues with my HP laptop Where in my display flashes and turns upside down.
How to fix this issue?
- 333
23
votes
3
answers
23k
views
How to set different scaling on multi monitor (3 monitors)
I have 3 monitors, the left one is 4k, while the other 2 are 1080p. The problem I am having is that if I have the 1080p monitors on normal scaling, the 4k monitor is basically unusable because ...
- 231
23
votes
3
answers
128k
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 ...
- 2,636
22
votes
4
answers
86k
views
How to run xrandr commands at startup in Ubuntu
How can I run the following xrandrcommand on startup?
xrandr
cvt 1368 768
xrandr --newmode "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798 -hsync +vsync
xrandr --addmode VGA1 ...
- 229
22
votes
2
answers
16k
views
Virtual Machines: High-DPI screen scale resets to 100% when I resize VM's window
I've installed Ubuntu (tried 17.10 and 18.04 pre-release), since I have a 4k monitor I went to Settings - Devices - Displays and set Scale to 200%.
Everything looks fine until I resize a VM's window (...
- 383
22
votes
4
answers
19k
views
Use one monitor as multiple monitors
It is nice to use multiple monitors for developers. You can maximise each window in a specific monitor, windows can stick to corners of specific monitors.
There are ultrawide monitors in the market (...
- 323
22
votes
4
answers
11k
views
External monitor randomly goes black on Ubuntu 20.04 LTS
I have a really irritating issue where my external monitors randomly goes black for a few seconds and then returns. This happens every other minute, but sometimes i can sit for 30 minutes before it ...
- 337