Questions tagged [monitors]
Computer monitors (i.e. screens or displays). For system/application monitoring, please use the /monitoring tag.
349
questions
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2
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36
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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, ...
- 1
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0
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43
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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 ...
- 135
3
votes
2
answers
172
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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 ...
- 713
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106
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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 ...
- 111
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votes
1
answer
18
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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 ...
- 241
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0
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64
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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 ...
- 123
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0
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52
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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, ...
- 65
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1
answer
546
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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?
- 74
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1
answer
390
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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, ...
- 187
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0
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553
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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 ...
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2
votes
1
answer
264
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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 ...
- 331
3
votes
1
answer
126
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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, ...
- 43
1
vote
1
answer
98
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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 ...
- 13
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0
answers
22
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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 ...
- 5,471
2
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0
answers
287
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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 ...
- 869
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0
answers
191
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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 ...
- 113
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0
answers
20
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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 ...
- 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 ...
- 101
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votes
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/...
- 425
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1
answer
1k
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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 ...
0
votes
0
answers
428
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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 ...
- 101
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votes
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 ...
- 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.
...
- 407
0
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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)), ...
- 165
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votes
0
answers
104
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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 ...
- 5,471
0
votes
2
answers
5k
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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 ...
- 113
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votes
0
answers
395
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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 ...
- 1,181
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0
answers
123
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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 ...
- 11
0
votes
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-...
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 ...
- 11
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 ...
- 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?
- 113
1
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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 ...
- 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 ...
- 103
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0
answers
686
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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 ...
- 113
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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 ...
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 ...
- 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 ...
- 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 ...
- 349
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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: /...
3
votes
0
answers
338
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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 ...
- 153
1
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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....
- 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-...
- 996
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 ...
- 4,068
1
vote
1
answer
2k
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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.
- 321
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1
answer
237
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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 ...
- 101
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 ...
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.
...
- 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*+...
- 125
0
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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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