Questions tagged as ['display']

Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)
Score: 3
USB C-type hub HDMI weird colour
ru flag

I recently bought a USB-C hub to be able to connect all my desktop devices (including a monitor) to my laptop at once (plus wired internet).

It works great, but I immediately noticed that since I'm using USB-C to connect the monitor to the laptop instead of HDMI the monitor's colours are much worse than when I was using the HDMI output - everything appears to have 'less colour', like a grey filte ...

Score: 0
Ryan avatar
How to toggle between 2 specific resolutions via keyboard shortcut?
in flag

I'm using Ubuntu on a laptop (with its built-in screen disabled) connected to a 3840x2160 external display.

Before sharing my screen on a video chat, I always like to switch the resolution down to 1920x1080.

I want to be able to quickly toggle the resolution of my external display between 3840x2160 and 1920x1080 via a keyboard shortcut, such as SuperPrntScrn.

This really old answer might be relevant as a ...

Score: 1
Disable built-in display when using external monitor on Wayland (Ubuntu 21.10)
gb flag

I am running Ubuntu 21.10 on Wayland and have noticed that the built-in monitor of my ThinkPad Carbon X1 5th Gen (2017) is still drawing power, even when it is switched off and the display mode is set to "Single Display" on an external monitor. I used powertop to check power consumption and it shows that Display backlight still draws between 100mW and 1W.

What I am looking for is a way to completely  ...

Score: 0
Manuel Jordan avatar
xrandr with Fractional Scaling to set a percentage value to each monitor (without affect each other)
kz flag

I use VirtualBox, the Host is Windows 10 and the Guest is Ubuntu Desktop 20.04. The laptop is connected with a secondary monitor of 22 inches (Samsung). I use the following with xrandr

# cvt 3480 2160
# 3480x2160 59.99 Hz (CVT) hsync: 134.20 kHz; pclk: 645.25 MHz
Modeline "3480x2160_60.00"  645.25  3480 3768 4144 4808  2160 2163 2173 2237 -hsync +vsync

xrandr --newmode "3480x2160_60.00"  645.25  3480 ...
Score: 0
1one.w01f avatar
Bottom of screen jitter w/ Quadro M1000M GPU and nVidia driver on Ubuntu 20.04
ng flag

I wonder if anyone encountered a similar problem before and figured out a fix for it.


I got a laptop computer that has a Quadro M1000M and runs Xubuntu 20.04. The problem is that if I use the laptop's monitor, there would be a horizontal band of jitter (around 24 rows of pixels on the bottom of the screen, sometimes more, sometimes less, but the rest of the screen looks fine), which is ver ...

Score: 0
Manuel Jordan avatar
Mouse (single/double click) does not work in secondary screen/monitor
kz flag

I have installed VirtualBox 6.1.28 r147628 (Qt5.6.2) where:

  • The Host is Windows 7
  • The Guest is Ubuntu Desktop 20.04

The Guest Additions was installed through the .iso file. Therefore is possible:

  • Share directories copy/paste between the Host and Guest
  • Copy/paste between the Host and Guest

About the Display (Monitors). The guest instance configuration is:

Video Memory:  64MB
Monitor Count: 2
Scale  ...
Score: 0
ali HOZA avatar
Doesn't constant icons in dock or top-bar cause to screen burn-in?
ua flag

maybe it is a silly question or maybe i am too sensitive but i always think with myself does showing just a constant static icon in Ubuntu's dock or its top-bar cause to screen burn-in problem?

i use my laptop for around 6 continuous hours with display on every day. so this is my concern. during these 6 hours or so the dock and the top-bar are constant without any animation or change in color or  ...

Score: 0
A program cannot open my display
in flag

I have an HP Pavilion 23 all in one PC. When I tried to launch GIMP it said it cannot open the display. Why? I'm using Windows Subsystem and this is the only app I've tried to launch.

Score: 0
Joseph avatar
How to boot Ubuntu 18.04 with 2 external USB-C DisplayPort 4K monitors?
cn flag

When I boot Ubuntu 18.04 LTS with two external USB-C DisplayPort 4K monitors, the display freezes prior to the login screen. However, if I first boot with only one external USB-C DisplayPort 4k monitor, I am able to plug the 2nd monitor in and get both working if I set both monitors to 29.98 Hz. This is due to a limitation of the Intel NUC I am using, which only supports two USB-C 4k monitors at 30 Hz ...

Score: 0
telion avatar
Is there a Display Manager for ultra-widescreen monitors in Linux?
us flag


So in my daily life, I use Ubuntu 20.x for coding, chatting, browsing but also most notably for online calls with screen sharing.

So I use an ultrawide monitor and I get annoyed with the window resizing. Also, I couldn't find a proper solution for screen sharing during online calls, as I only got the option to choose a monitor or a program to share.


Now I found a video of the so-called ...

Score: 1
Unique_boy96 avatar
Create virtual screen to have access to extended monitor in old laptop - ubuntu 20.04 wayland nvidia
cn flag

I have a pc running ubuntu 20.04 via NVIDIA 1650 gpu, and my monitor is connected to pc via HDMI cable. I want to use my old laptop as a second monitor (extended screen) because I can't buy a new monitor now. Could someone help me what should I do? I tried to add a virtual display via xrandr or xorg config but still no luck! All other answers were outdated and not working for nvidia.

My goal is to c ...

Score: 4
Screen flickering on mouse move (Ubuntu 20/21, Lenovo IdeaPad 5i Pro)
cn flag

I recently purchased a Lenovo IdeaPad 5i Pro (16IHU6) with the following configuration

  • CPU: i5-11300H
  • GPU: nVidia MX450
  • Display: 2k@120Hz

and I fail to run Ubuntu 20.04/21.10 (to be honest, any Linux so far) on it, without having serious screen issues (both, using the integrated and dedicated graphics card).

Problem Description

The screen flickers and/or flashes when I (1) move the mouse, (2) switch be ...

Score: 0
raspberrypi 7" DSI display stopped working after initial upgrade (Ubuntu 21.10 64bit)
fr flag

I installed the Ubuntu Desktop 21.10 64bit image (released 2021-10-14) on USB for my RaspberryPi 4Gb. The pi has an original 7" display connected via the display interface (dsi).

After adding dtoverlay=vc4-kms-dsi-7inch (and lcd_rotate=2 to invert the display) to config.txt on system-boot the initial boot and setup seemed to work like a charm.

Problems started after the automatic update that happens dur ...

Score: 0
user8314628 avatar
How to keep Displays scale 200%?
cn flag

I'm running Ubuntu 18.04 on VMware Workstation Pro 16. Everything works fine. But the icon looks really small. I'd like to enlarge it by 200%. So I do Settings->Displays->Scale->200%and apply it.

The problem is every time I stretch the window or restart the system, the scale changes back automatically. Is there any way I can keep the scale unchanged?

Score: 1
jacob avatar
Display looks a bit washed out, blacks look almost gray and colors not very vibrant
cn flag

I've been using Ubuntu for a while now and I like it a lot, and I'm definitely not switching back to Windows. However, the thing that has bugged me is that the display on my Ubuntu install aren't as vibrant as my Windows, and looks very washed out. The blacks aren't as dark and the whites are kind of flat and not very bright.

I've also looked up this issue online and found the fix:

xrandr --output HDM ...
Score: 1
radim.1 avatar
Per monitor scaling on Wayland GNOME
fr flag

I need to set per monitor scaling in Gnome Wayland. I followed instructions and set /com/ubuntu/user-interface/scale-factor to {'XWAYLAND0': 8, 'XWAYLAND1': 4}. The object keys are the display keys from xrandr log. The XWAYLAND0 is laptop display and XWAYLAND1 is external monitor. I just want to scale down the external monitor. This seems to do nothing. Any tips?

Score: 1
Stuart North avatar
Display flicker on new HP 14S laptop with Ubuntu 20.04
in flag

Dual boot installation on new HP 14S laptop using latest Ubuntu 20.04 LTS on a USB stick. The machine has Intel i5 processor with Intel iRIS Xe graphics. When running from the USB it is necessary to select safe graphics mode when booting to prevent the intolerable screen flicker and bleeding of parts of the image. Once Ubuntu is installed it is necessary to enter the recovery mode and then resume normal ...

Score: 0
Abhishek Ghosh avatar
How to permanently save an xrandr configuration for a monitor even after reboot?
ar flag

I have a monitor. The hardware can support 1024x768 at 85Hz. But don't know why my lubuntu system does not detect this highest refresh rate for the resolution mentioned above.

As per this I did the following:

abhishek@abhishek:~$ cvt 1024 768 85
# 1024x768 84.89 Hz (CVT 0.79M3) hsync: 68.68 kHz; pclk: 94.50 MHz
Modeline "1024x768_85.00"   94.50  1024 1096 1200 1376  768 771 775 809 -hsync +vsync
abhishe ...
Score: 0
xrandr external monitor not being set as primary after screen unlock
ua flag

Edit2: the solution is so much simpler with autorandr which is explained here: no more messing with scripts which never seem to run -- I still have no idea what I was doing wrong with the xrandr commands, but it doesn't matter anymore.

Edit: I still have some problem with triggering the xrandr command correctly at each login, because something I'm not understanding ...

Score: 0
phealy avatar
Saving Display Configuration (Monitor Position, Primary, Refresh Rate)
pt flag

I have something of an unusual setup with my Ubuntu desktop and Windows laptop. The two devices share two monitors, one main monitor using the monitor's input switch (DP for the desktop, HDMI for the laptop) and one secondary monitor switched using a KVM (HDMI for both.)

When I use my laptop during work hours, I set the main monitor to use HDMI from the laptop, and set my Ubuntu display configura ...

Score: 1
Clas Ar avatar
Blurry/Pixelated fonts after changing screen's scaling size to 125% on ubuntu wayland
gy flag

I wanted to play wine games that only worked in Wayland so I started a new session and when I set the resolution to 125% I ended up with some completely disgusting text fonts that didn't look like nothing at all if you will allow me. If there is anyone who could help me with my problem I sincerely thank him.

NOTE: I would not accept any responses like "Open a normal session", "Set your resolution ...

Score: 0
Display not recognised (shows as disconected)
in flag

I have 2 displays but only 1 of them is being detected by the system, the one that's working is connected via VGA cable to the Motherboard connector and the other is connected via HDMI through an AMD GPU card (Rx 570), running xrandr shows the gpu's HDMI as disconnected, i've tried other linux distros (Debian and POP!_OS) and had the same results, i know the problem is not the monitor or the cable becau ...

Score: 0
xrandr brightness and gamma values seem to be false
th flag

I am trying to emulate night mode on my external monitor because when I change the brightness with xrandr night mode gets disabled.

My idea was to make xrandr output the current values (when in night mode) of the monitor with xrandr --verbose | grep 'Brightness\|Gamma' , which did output the values, but after setting those I get a different blueish background color than the warmer one I expect.

D ...

Score: 0
jogarcia avatar
Kubuntu won't detect second monitor after nvidia install
in flag

My Kubuntu 20.04.3 stopped being able to detect my second monitor after installing the nvidia-driver-390 recommended graphics.

One monitor is connected to the card an the other to the board.

Apparently (am a Linux noob) the xorg server isn't detecting the second monitor anymore as you can see in the xrandr command bellow

xrandr result

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16 ...
Score: 0
Manuel Jordan avatar
Virtual Box and Ubuntu 20:04: Ubuntu for the secondary monitor behaves not correctly
kz flag

I have in some laptops installed VirtualBox 6.1.28 r147628 (Qt5.6.2) where:

  • The Hosts are MacOS (El Capitan) and Windows (7 and 10)
  • The Guest is Ubuntu Desktop 20.04 for each Host.

The Guest Additions was installed through the .iso file. Therefore is possible:

  • Share directories copy/paste between the Host and Guest
  • Copy/paste between the Host and Guest

About the Display (Monitors). For each guest in ...

Score: 0
Problem with a "vibrating" screen on laptop
us flag

I have a problem with my laptop display, it flickers in a way that makes the screen look like it vibrating. This problem has been going on since Ubuntu 20.04... and it isn't a Ubuntu problem, it happens with 5 other distros.

I would like to move away from Windows 10 because I don't like 11... But, this problem is a deal breaker as I want one distro on all 3 of my PCs (Desktop,laptop, and Surface  ...

Score: 0
owujib avatar
20.04 screen show black with only the mouse when ever I try to record on any app
us flag

I just switched to ubuntu 20.04 some weeks ago, over time anytime I have to share my screen either recording or in a meeting it is only my mouse that shows

Score: 0
Amadou Kone avatar
Freezing on bootup, poweroff and configuring display with external monitors on Ubuntu 20.04
vn flag

I have a new Dell XPS 15 that I am trying to get set up with Ubuntu 20.04, using my D6000 docking station and two external monitors.

Right now, the monitors work when I plug them in after booting up. However, ubuntu is unable to boot with them plugged in. Additionally, if I try to power off, the external monitors turn off but the laptop screen simply freezes. Similarly, if I try to change the m ...

Score: 0
msantos avatar
Screen tearing and weird artifacts on Ubuntu 20.04
pr flag

I have a lenovo thinkpad T14 and it works fine on Windows 10 but on Ubuntu 20.04 the overall performance, in terms of "graphical stuff", is bad. Watching videos or streams make the pc slow, it drops frames, etc... I managed to improve a lot by turning off the Nvidia GPU and use the integrated Intel graphics card only.

But the main problem that I'm trying to solve is that when using a second exter ...