Questions tagged [multiple-monitors]

Questions about multiple monitors (Including projectors), how to configure,customize, and troubleshoot, etc.

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Factorial scaling on laptop makes external display a bit blurry

I have ASUS ROG Zephyrus G14 laptop with Ubuntu 20.04, it has 2K screen so I set scaling to 150%, but when I connect my external Dell display without scaling its content is blurry. When I switch "...
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Virt-viewer secondary display

I have been fiddling around to get this just right but to no avail and I'm hoping that the experts might lend me an helping hand :D So what I am trying to achieve is to have a machine upon startup, ...
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Disabling display auto detection on Ubuntu 20.04

I am working on a system supporting multiple displays connected to an Nvidia display card (using DP). Whenever I connect/disconnect a display all the remaining connected displays turn black for a ...
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Monitor goes black when I open setting in GNOME

I have a Yoga 7i that I have connected to a monitor through USB-C port extension to a monitor that supports HDMI. When I click on settings in GNOME monitor goes black similar to how it would look if ...
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Where is this ghost output xrandr can't find?

I'm running Ubuntu 20.04. At some point there was an issue with the graphics driver and I ended up using xrandr to add an output manually... There is no longer an issue with the graphics driver but ...
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Ubuntu 20.04.3 - Black Screen on startup

I have a classic problem of "Black Screen" when Ubuntu starts and I'm not able to fix it. The problem: Without the "nomodeset" option in GRUB_CMDLINE_LINUX_DEFAULT, I have a ...
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31 views

Intel Iris Xe on Ubuntu 21.04 detects the external monitor but outputs no signal

I have a Dell Vostro 3400 with Intel Iris Xe Graphics and I can't get my external monitor to work properly. I've installed the driver i915 and Ubuntu detects the monitor, but I get no signal output to ...
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Laptop can't see external montior's maximum resolution

I've got a Lenovo IdeaPad 5i 15IIL05 with Intel UHD graphics, running Ubuntu 20.04.1. I want to connect it to an external monitor (Acer Gaming Nitro VG270U) via HDMI. When connected, it does work - ...
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Change hardware brightness of monitor on desktop installation

I have ubuntu 20.04 installed on my desktop and want to change the hardware brightness. I can change the brightness with xrandr but this does not change the hardware level brightness. Is there anyway ...
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27 views

Ubuntu 20.04 blurry when using fractional scaling

I just got a Dell XPS 15 9510 with a RTX 3050Ti and a 4K monitor at work that I'm using together with an external 4K monitor. I installed the latest NVidia drivers on the laptop after the Ubuntu ...
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34 views

Dual monitors on login are working in a mirrored mode instead of be handled as extension

I have a laptop and recently connected second monitor (VGA). The problem is when I first boot both monitors show same login screen (like in the mirroring mode). After login in, both monitors are ...
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48 views

Monitor Resolutions not detected - Ubuntu 20.04

I just recently installed Ubuntu 20.04 on my PC. For some reason, there's only one resolution detected for my monitors (1024 x 768 :: 4:3) and no other option to change to. It's also only detecting my ...
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21 views

Reset X display configuration?

I should know better, but I was installing updated NVidia drivers for my laptop and have gotten things so messed up that X will not start properly. Using Kubuntu 21.04. The laptop is an Eluktronics ...
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Why won't Ubuntu recognise that my monitor has changed?

I use 2 external monitors in addition to my built-in laptop monitor. I recently replaced one of the external monitors (previously had 1 old Samsung 22" and one new Samsung 32" 4k, now have 2 ...
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Howto force all Windows to open not Maximized

i found some useful hints here: i this answer from 2012 "Window Rules" is used Force All Windows To Open At A Set Resolution ('width x height' pixels) but i did not found "...
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Two monitors, one in portrait mode (vertical), intel UHD 630, screen artifacts / tears

Problem description I have two monitors with Ubuntu 20.04: Primary DELL 24" in landscape mode connected as DP-1 Secondary BENQ 24" in portrait mode connected as HDMI-1, however it is in ...
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Why turning off kwin compositor fixed my different refresh rates problem?

Kubuntu X11 (I think) x64 RTX 2080 i9 9900k. So I have 3 monitors @ 60hz and 1 @ 240hz, Everyone 1080p. I always had the problem that the refresh rate was limited by the most weak monitor, this is ...
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No Graphics Output from RTX 3080; X Server Not Configured

Beginner user here. I've got a server box loaded with an Intel S2600ST, an Intel Xeon Silver 4216, and an RTX 3080, and either Ubuntu 20.04.03 or 21.04. When I've had the LTS loaded, it would ...
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External screen disconnecting every 4 minutes with usb-c to hdmi connection

I have a dell xps 13 which is running ubuntu 20.04 and is connected to an external screen via an usb-c to hdmi cable. This worked fine for a year and now it has started to randomly disconnect every 5 ...
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Second Monitor suddently not recognized on Ubuntu 20.04

So I had this problem originally when I first got Ubuntu on my PC but I managed to fix it. However, for some reason it has appeared again. I tried all these steps so far: purged Nvidia switched the ...
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19 views

Dual monitor setup on Dell XPS 9500 with Ubuntu 20.04

I have recently acquired a Dell XPS 9500 laptop with a Core i9 10th gen and nvidia 1650Ti. I have been able to successfully install Ubuntu 20.04. However, I am unable to connect two monitors at the ...
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33 views

Ubuntu 20.04 with UHD Graphics 630 using MST hub gives jagged tear on one screen

I'm new to Ubuntu 20.04 and have a PC with UHD Graphics 630 (CFL GT2) and 2 display ports. Also, I have 3 ASUS monitors. One is 4K and the other is a Pro Art with 1920x1200 resolution. One of the ...
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Setting Ubuntu resolution to 5120x2160

I have a new monitor that can display at 5120x2160, See: https://www.dell.com/en-uk/shop/dell-ultrasharp-40-curved-wuhd-monitor-u4021qw/apd/210-ayjf/monitors-monitor-accessories. I have ran cvt 5120 ...
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38 views

Ubuntu 20.04.3 LTS with two monitors, cursor jumps to wrong monitor

I'm using Ubuntu 20.04.3 with Nvidia GTX 1660 Super GPU and 2 monitors. 1st Monitor : 29" 2560x1080(21:9) wide screen (HDMI) 2nd Monitor : 32" 1920.1080(16:9) normal screen (DISPLAYPORT) 1st ...
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1answer
26 views

Ubuntu 20.04 mouse glitch at edge of screen

I recently moved from Ubuntu 18.04 to Ubuntu 20.04.3 LTS and am using a USB display docking station with 2 extra monitors on my Lenovo laptop (E580). The problem is that when I move the mouse to the ...
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My new Dell w/ Ubuntu Gnome won't show my external monitors (Sceptre)

My ubuntu Dell will not show my external monitors. I've downloaded and installed the driver for the StarTech Display link docking station I have, and the dock works for keyboard and mouse, but I ...
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Shortcuts for switching monitors

I'm on a NUC PC (Ubuntu 20.04) with two monitors (one Thunderbolt 3, one HDMI device). Only one of them is usually active at the same time but both always stay connected. Windows 10 allows me to ...
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27 views

setting Ubuntu resolution to outside default

I have a Dell UltraSharp 40 Curved WUHD Monitor - U4021QW that can handle resolutions up to 5120 x 2160 (DisplayPort: 60 Hz, HDMI: 30 Hz). I'm using a high end HDMI cable, so I'm expecting 5120 x 2160 ...
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21 views

Monitor size that Ubuntu autodetects

How does Ubuntu determine the size of the display in inches? I have the 27'inch LG display as a main monitor that is connected to my dell laptop via HDMI. And as shown on the screen attached Ubuntu ...
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19 views

Screen is weirdly stretched

Screen is weirdly stretched Since about one week my Ultrawide screen is not working properly with my Ubuntu Laptop.If I open a window on the sreen it gets stretched to the right. The Image should ...
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Scaling monitors

I have two monitors, one on my laptop that have the resolution 3840x2160 and one external that's 1920x1080. To be able to see anything on my laptop I need to have it at 200% scale but then everything ...
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How to Set the Monitor Configuration on Startup?

Lubuntu 20.04: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal $ I have a laptop with a dock, and ...
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22 views

Connect Dell XPS-15 with Ubuntu 18.04 to Samsung 6 Series TV with HDMI

I am trying to use my Samsung 6 Series TV as a secondary monitor for Dell XPS-15 laptop using an HDMI cable. I am running Ubuntu 18.04. What I am encountering is that on my laptop, the second display ...
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1answer
24 views

External Monitors are working on login screen but not detected after login

The title describes my problem, and my question is what should do to fix it? I have the same trouble no matter if I connect the monitors through a different types of cable or through a docker. I have ...
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21 views

Laptop display missing from settings and screen black

So I had everything set up how I wanted, 2 Dell external monitors with my laptop screen turned off. Come to my computer and the laptops display is on but black, and one of my Dell screen is off. I go ...
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37 views

3 Monitors not working on kubuntu 21.04

I want to have a setup with 3 monitors. I have a DELL precision T1650 with 32 GB RAM and + 1TB SSD. For display, I have 2 Phillips (1080P: 1920x1080) and one BenQ monitors(1080P: 1920x1080). The 2 ...
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351 views

Use multiple commands in a single keyboard shortcut

I would like to associate these two commands with two keyboard shortcuts to activate and quickly deactivate the television connected to the PC as if it were a second monitor. To activate TV monitor ...
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1answer
48 views

Only one monitor working at a time - Ubuntu 20.04, Linux 5.11.-27, AMD CPU and 6700XT

So, I bought a 6700XT and plugged it into my PC. My second screen (HDMI connection) does not show up in any commands or the Ubuntu display settings. It seems that Ubuntu can somehow only connect 1 ...
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25 views

Unable to get output on fourth monitor even though all video cards and monitors are detected

I am currently upgrading my system from one video card and 3 monitors to two video cards and 4 monitors, but I'm unable to make the fourth monitor work on the second video card. The other three ...
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Multiple monitors : Gnome opens windows minimized

Using 3 screens, windows are often opened minimized (full application like Terminator, or menus in Google Chrome, Intellij Idea) : How can I prevent this behaviour ? (Seen in 18.04 an 20.04)
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Prevent mouse pointer from going between monitors when in a corner of a monitor

This is a feature that i found on windows but i can't find anything like this on Linux. I have multiple monitors and each of them had its own taskbar. Each of them has an applications menu button on ...
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1answer
44 views

All screens go blank when the PC is plugged to a docking station

I'm using Thinkpad P14s and a docking station (usb-c dock) with two external monitors. Everything was working fine for several months but after some Ubuntu system upgrades this setup broke. Now both ...
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27 views

Upgrading NVIDIA drivers disabled any possible network connectivity my Ubuntu machine has

So I booted up my Ubuntu 21.04 machine after not using it for a long time. Right off the bat, I noticed it was weird how only one of my two monitors hooked up was working, and how I could switch ...
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31 views

Primary Monitor briefly turns off (and rearranges windows) when Secondary Monitor (connected via Displayport) is turned off

The Problem at hand is DisplayPort itself, as turning of a monitor connected with it will terminate all connection to the computer, making it think that that monitor was removed and therefore ...
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19 views

Add ubuntu dock to 2 monitors, but not all

I have a 7 monitor system. I don't like the dock on all my displays, and I find myself rotating it between 2 of them trying to figure out where its best. Is there a way I can configure the dock to ...
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1answer
124 views

Missing Dock in Ubuntu 20.04 after sudo apt upgrade and restart

I did sudo apt upgrade and restarted Ubuntu 20.04 system. However, after login the Dock is missing from the desktop environment. The Dock does appear on the left edge of the monitor when I press the ...
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How to set default screen resolution for display manager in 21.04

i'm running my Huawei Matebook (3000x2000) with two 27" Fujutsu Screens using an HP USB-3 dock. I'm experiencing issues that on certain screen resolution combinations (e.g. 3000x2000 internal + 1 ...
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52 views

Ubuntu 20.04 with multiple monitors having NVIDIA Graphics Card gives blank on screen on boot

I have a Lenovo Workstation where I have a NVIDIA Graphics card along with Ubuntu 20.04. Recently on boot it started giving a blank screen and getting hung when connected with multiple monitors. ...
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Simultaneous dual-monitor sound

I've tried searching everywhere but didn't find anything related. So, my problem is. I have a dual monitor setup on my Ubuntu 20.04 LTS, one connected through HDMI (a LG TV) and the other one through ...
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1answer
391 views

Displaylink driver does not work since last update on August 15th 2021, after update and display config changes -> System freezes

[UPDATE] I also tried the Displaylink driver version 5.3.1 from 5th of may 2020. No Monitors externally are detected! So less functionality! I tried this version as well, 'cuz I installed the last ...

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