Questions tagged [monitors]

Computer monitors (i.e. screens or displays). For system/application monitoring, please use the /monitoring tag.

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nvidia-settings does not load xorg.conf saved settings at startup

I tried making a /home/name/.local/share/nvidiaconf.sh file with nvidia-settings -load-config-only nvidia-settings --assign CurrentMetaMode="DP-0: 1920x1080_60 +1920+0, DP-2: 1920x1080_75 +0+0, ...
Omicron's user avatar
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How to create a virtual monitor to confine a full-screen application

I use Weylus to draw remotely in my Debian system from my smartphone which dimensions exceed all those of my physical monitors and are not a scale of them. The problem is in reason of their dimensions ...
Le Nain Jaune's user avatar
3 votes
2 answers
172 views

How do I keep the screen on a console-only Raspberry Pi?

Buildroot for RPi3 B+ without X server (console only). Monitor connected on HDMI. I want to keep the monitor on. After 10 minutes (if I'm not wrong) of no keyboard activity the screen turns off. From ...
Mark's user avatar
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Unable to open Display settings in Linux Mint with Cinnamon after plugging in a docking station with a monitor connected via HDMI

I'm experiencing difficulties with getting a second monitor to function on my laptop. I connect the monitor to a docking station using HDMI, and the docking station is then connected to my laptop via ...
Czyzby's user avatar
  • 111
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1 answer
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Monitor at first shows "overclocking" when starting KDE

When I boot my Manjaro Linux system, I get a graphical GRUB, then some boot text messages and finally when KDE Plasma starts, my monitor only shows the message "Overclocking" and nothing ...
Gere's user avatar
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64 views

Second external monitor does not turn on but is connected

I'm running debian 12 on a thinkpad T14s and have an issue with a second external monitor. I have both monitors connected to the thinkpad universal usb-c docking station and my laptop plugged into ...
kevin41's user avatar
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Arch Linux - Monitors will never go to sleep

Through searching I can only find people looking to solve the opposite issue. I am running Arch Linux with i3 as my window manager. I am using i3-lock to handle screen locking. I can lock the screen, ...
JLCarveth's user avatar
0 votes
1 answer
546 views

How to find monitor model and related information in linux? [duplicate]

I want to correct my color profile, so I need to find my monitor model so that I can download the correct ICC (or ICM) file. Is there a way to find out the monitor model in Linux?
white-hat-er's user avatar
1 vote
1 answer
390 views

Monitor goes into power saving after a minute or so after upgrading to Fedora 38

I've upgraded to Fedora 38 from 37 and noticed that when my computer is inactive for exactly 30 seconds, the monitors go into power saving mode (presumably because the graphics card (Nvidia RTX 2060, ...
orange's user avatar
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USB-C to HDMI adaptor does not work for my second external monitor on Ubuntu 20.04 (Razer Blade Laptop)

I spent the whole day trying to make my second external monitor work for my laptop (Razer Blade 14 - Full HD 144Hz - GeForce RTX 3060 - Black - Link). My primary monitor is connected via HDMI (and ...
Stefanos's user avatar
2 votes
1 answer
264 views

Is there a tool for inverting (darkening) screen or window on Wayland + Gnome?

I am looking for software of any sort that easily inverts the screen, or alternatively the windows, on a distribution using Wayland windowing system (Debian) and, I realize, Gnome desktop. Is someone ...
Johan's user avatar
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3 votes
1 answer
126 views

How would the mouse behave in a mirrored environment?

Sorry if it sounds confusing, but this is not a biology inquiry. I'm planning to switch to Linux, but I have a few questions need answered. If a single monitor is mirrored like described in this link, ...
longtry's user avatar
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1 vote
1 answer
98 views

Hello windows camera as a web camera on Linux | Philips 272s1mh/00

I recently bought a Philips 272s1mh/00 27" monitor with the idea of using it as an additional monitor for my work HP laptop with Windows 11 pro and at the same time for my Dell Vostro laptop with ...
baka.strumpf's user avatar
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22 views

Output name assignment--possible to change?

I have a dual monitor setup in Arch using Sway and originally I had Sway configured to work on the two monitors which were named "DP-1" and "DP-2" automatically. However, later I ...
Tyler Durden's user avatar
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287 views

Is there any way to generate `monitors.xml` programmatically?

I use a script in order to setup my system in an unattended fashion. On my last reinstall, I've found that the file ~/.config/monitors.xml is not created automatically. While I can create it by ...
Marcus's user avatar
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not detecting external monitor on waking up

Many months ago, everything was working fine. I put the system to sleep and on waking it up, the USB-C attached screen would wake up and I would be off to the races. Then, after some update, the ...
Roman Luštrik's user avatar
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Random windows & application switching between monitor when multiple monitors go to sleep

TL;DR Is there a way to delay the window manager automatically moving applications to active monitors when one of multiple monitors turns off? I'm running KDE. I'm running Kubuntu 22.04. I have a ...
C.D.'s user avatar
  • 101
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1 answer
761 views

Ubuntu 22.10 External monitor connection issue

I have recently install 22.10 Ubuntu OS and I lost external monitor connectivity. I have tried few things but stuck. OS: Ubuntu 22.10 xrandr: HDMI-1-1 disconnected (normal left inverted right x axis y ...
Bhavesh Odedra's user avatar
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0 answers
585 views

How to get three displays on Linux Mint 21

This is a follow-up on How to get 3 monitors working in Linux Mint 18. I am on a Dell Laptop with one HDMI output, but the cables are plugged in on a dock. I highly doubt that the laptop brand/type/...
questionto42's user avatar
3 votes
1 answer
1k views

xrandr: change saturation (less color, more black/white)

I know how to change brightness and gamma with xrandr: xrandr --output eDP1 --brightness 0.8 --gamma "0.90:0.85:0.80" but how can I change saturation, ie decrease the amount of color and ...
Martin Vegter's user avatar
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428 views

DisplayPort monitor gets disabled during boot

I have a Laptop with embedded AMD GPU and discrete NVIDIA GPU. My OS is Fedora 37. The Laptop has a HDMI and one mini DP output. HDMI works without problems. Now I wanted to use the DP connection and ...
Max.-F.'s user avatar
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0 answers
35 views

Set DDCI values with i2cset

I want to control my monitors with a microcontroller via i2c and DDCI. Before doing that I wanted to try it via command line to understand which i2c commands to send. I used ddcutil to get the i2c bus ...
StefanoN's user avatar
  • 121
1 vote
1 answer
670 views

How to use three monitors on a laptop with linux mint through hdmi and usb-c

I have an HP EliteBook 840 G7 Notebook, with Linux Mint 20.3. My goal is to connect two more monitors to the machine. I have a monitor connected via HDMI port, and a monitor connected via USB-C port. ...
Fabio's user avatar
  • 407
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0 answers
54 views

Does X have any built-in multi monitor support?

I am adding multi monitor support to my window manager. To get the width and height of a display I use DisplayWidth(display, DefaultScreen(display)) and DisplayHeight(display, DefaultScreen(display)), ...
Eshy's user avatar
  • 165
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0 answers
104 views

Fonts and modern high screen resolutions

A problem I have with my Arch system is that fonts in many applications are too small. I have a 3480 pixel wide screen that is 27.5" wide, which means that my dpi is about 139, not unusual for a ...
Tyler Durden's user avatar
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0 votes
2 answers
5k views

Monitor detected but with no signal in Linux Mint and Ubuntu

I have a Slimbook laptop with an external monitor (HP Elitedisplay E243) connected to it using HDMI. Suddenly, the monitor stopped working (it was at a system start). The monitor gets detected by the ...
Aritz's user avatar
  • 113
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0 answers
395 views

Laptop screen won't turn on unless I plug in external monitors (Ubuntu / NVIDIA)

When I installed my Ubuntu 20.04.4 LTS I had it connected to 2 external monitors (at the time of installation). Now every time I reboot my computer, my laptop screen is off. I need to connect it to my ...
Martin Zeltin's user avatar
1 vote
0 answers
123 views

No screen shown as connected when using xrandr, not even the one i'm using

Here is the output of xrandr : Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767 DVI-D-0 disconnected primary (normal left inverted right x axis y axis) HDMI-0 disconnected (normal ...
Rhizome's user avatar
  • 11
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1 answer
325 views

get connected monitor(s) details on a Debian system

I am running Debian 11 with GNOME, and realized that getting information about the connected monitor(s) is not that easy (preferably from terminal). The most promising solution I found was with read-...
exch_cmmnt_memb's user avatar
0 votes
0 answers
80 views

use thinkpad tablet as second monitor with touchscreen?

i have an old thinkpad x200t with linux installed on it; for a long time i wasn't using it, but now i would like to use it as an additional monitor with a touchscreen for my current linux computer, in ...
AutumnCheney's user avatar
1 vote
0 answers
523 views

Screen goes blank (black) for a few seconds when (Ubuntu) dual monitor setup

The laptop and monitor screen (connected via hdmi) goes blank. example: when autocomplete in terminal fails when taking a screenshot I believe the OS is trying to play a notification sound but it is ...
MiKz's user avatar
  • 23
0 votes
1 answer
33 views

Calling printf without a connected monitor

I would like to know if when we call printf without connecting a monitor (and uninstalling any driver related to the screen), does a driver get called anyway?
Ariel Yael's user avatar
1 vote
1 answer
1k views

Turn off monitor backlight (DPMS) from a VC/VT (TTY) without Xorg/Wayland-DE

How does one flip a monitor's backlight on/off from the normal Linux console (tty1)? I'm looking for a way to do this without dependencies on Xorg or specific Wayland-Compositors. Let's say, that I ...
anick's user avatar
  • 440
1 vote
1 answer
2k views

How do I turn off my HDMI monitor?

I tried xrandr --output 'HDMI-A-1' --off which puts the screen as black for only a few seconds and doesn't turn anything off. xset -display :0.0 dpms force off does the same except it shows me the ...
Eric Stotch's user avatar
1 vote
0 answers
686 views

in my external monitor with max resolution everything looks big and ugly, how can I fix this?

when I connect my external monitor everything looks so big, the code font in my editor inside my laptop has a small and pretty font but when I move to the external monitor is like a zoom instead of ...
user1050817's user avatar
0 votes
1 answer
302 views

Raspbian - Forcing monitor to 120 Hz

I have a 165 Hz monitor, and a Rpi 4b. In the raspbian monitor configuration, I can only push my monitor at 60 Hz, but my monitor supports 144 Hz on HDMI. For clarity, my question is NOT about my ...
Psychon Night's user avatar
0 votes
1 answer
695 views

How to make a KVM (built into the monitor) connection work , using a DisplayPort/Usb-C cable connected to a thinkpad dock

In this setup, the other device connected to the KVM works well with HDMI + Usb-B connection. Video signal, mouse and keyboard are ok. But on the other side, I have an Thinkpad T470S with Linux 5.16 ...
dlag's user avatar
  • 15
1 vote
1 answer
39 views

archlinux, out-of-sync at monitor connected to linux machine

I have a few linux machines with Archlinux installed, each are connected to KVM switches, but most of time all machines are remotely connected. I don't use X so no X stuffs are installed. At some ...
auditory's user avatar
  • 228
1 vote
0 answers
40 views

How to inspect different monitor contrast on standby resume?

I'm using an external 4K Monitor on my notebooks docking digital port. Resuming from standbye results in a much brighter contrast compared to booting. In particular I notice the difference in Xorg ...
jjk's user avatar
  • 349
1 vote
0 answers
616 views

Valid values for a xorg.conf(5) Monitor Identifier?

I have a Dell P2210 monitor. Its EDID data is somewhat conservative. I am currently using the following file, which works as expected: # Ubuntu: /usr/share/X11/xorg.conf.d/20-DELL_P2210.conf # Other: /...
JamesTheAwesomeDude's user avatar
3 votes
0 answers
338 views

Not able to invert colors | xcalib -a -i stopped working

I used the command xcalib to invert the colors on my screen and it was working fine for a long time till suddenly somehow it stopped working.I am unable to diagnose as to what has caused this. Now ...
harsh atal's user avatar
1 vote
0 answers
47 views

Asus VK222H not detected properly

My Asus VK222H screen is not being detected properly (on display, it shows 'Ancor communication...' ) I was wondering if it's a drivers issue (they do not provide them for linux on https://www.asus....
jjrr's user avatar
  • 117
2 votes
0 answers
271 views

gsd-color color transform matrix permission denied

I am investigating a monitor wakeup problem and one of the errors noted by journalctl is: Jan 03 14:24:11 konradsdesktop gsd-color[1238]: failed to set xrandr-Samsung Electric Company-LC32G7xT-...
Konrad Höffner's user avatar
2 votes
1 answer
2k views

Video glitches when files are played in fullscreen (screen tearing in VLC & MPV in Debian11/KDE)

When playing videos like movies with the Kodi media center, the videos often have lots of glitches. I tried it with the VLC player, MPV and DragonPlayer on Debian11/KDE and it occurs with all of these ...
mYnDstrEAm's user avatar
  • 4,068
1 vote
1 answer
2k views

How to overclock monitor by adjusting pixel timings on Linux?

This guide shows how to apply the timings, but it doesn't explain how to tune those timings. Adjusting monitor timings on Linux is different than with CRU on Windows.
glibg10b's user avatar
  • 321
0 votes
1 answer
237 views

Acer Monitor - Webcam not working

I have an Acer B277 monitor with an integrated webcam. Even after connecting the HDMI cable, the webcam refuses to work. I dont see any separate drivers available from the Acer website for this. How ...
Abbas Gadhia's user avatar
1 vote
1 answer
596 views

Turn off/on laptop display from TTY without additional software

I have a laptop with Artix Linux on it that I'm using as a web server. I want to keep it minimalist, w/o graphical environment and only the absolute necessary software. My problem is I still don't ...
Abdelhakim AKODADI's user avatar
2 votes
2 answers
2k views

Xorg and xrandr detect a connected monitor that doesn't exist

I'm on a laptop with no additional monitors connected, but when I run xrandr -q, the output lists two connected devices. Xfce's Display settings dialog also shows two monitors, and so does Xorg.0.log. ...
weronika's user avatar
  • 355
2 votes
1 answer
640 views

How can I have two mirrored displays (laptop screen + TV monitor) with different resolutions?

My output of xrandr is: Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 340mm x 190mm 1366x768 60.02*+...
Alfie Stoppani's user avatar
0 votes
1 answer
841 views

How to mirror a screen in TigerVNC?

How to mirror a screen? I have an answer (VNC). A Linux VNC server - https://help.ubuntu.com/community/VNC/Servers.
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