Questions tagged [monitor]

Questions that relate to the electronic display (sometimes called a visual display unit) for computers. Typically questions relate to visual issues such as flickering, resolution, black-screens together with the usage of single and multiple displays.

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External monitors not remaining off after screen lock/suspend

I am using Ubuntu 23.10 on a laptop and a desktop. The external monitors are on separate rigs (one on my downstairs laptop setup) and one permanently connected to my upsatiars desktop). On both, when ...
3 votes
2 answers
2k views

Ubuntu 20.04 loses monitor resolution after waking from sleep

I have an Nvidia RTX 3070 and a Samsung C49RG90 monitor. The monitor is connected to the video card via HDMI. Everything works fine, unless I suspend the system and then wake it back up. When that ...
1 vote
2 answers
15k views

Out of range on monitor

After installing Ubuntu 16.04 on a server machine I get an error on my monitor. It tells me that the input is out of range I've tried following the other suggestions on here but not of them work. I'm ...
0 votes
0 answers
33 views

Connecting LG 22MD4KA to 970A GAMING PRO CARBON Motherboard

I have a LG 22MD4KA monitor that connects only with USB-C. There is a UBS-C outlet in my mother board (970A GAMING PRO CARBON MSI) but I don't know if it can transmit an output. My current video card ...
10 votes
1 answer
14k views

Is there HDR monitor support in Ubuntu

More monitors have the HDR (high dynamic range) functionality. Does Ubuntu (Linux) support this, too?
6 votes
6 answers
2k views

Ubuntu eye strain problem?

Hi I saw lots of posts here regarding Ubuntu eye strain issue. But none could answer my question. I use Intel i5 processor, AMD radeon Graphics card. When I use my Win 7, there is no issue with my ...
0 votes
4 answers
512 views

My laptop freezes when connecting external monitor via DP or HDMI

I have a new DELL 7440 laptop with Ubuntu 22.04.03 and I'm using Xorg instead of Wayland. When I connect an external monitor, via Display Port from docking station Dell WD19TB or directly using HDMI ...
2 votes
1 answer
5k views

How to calibrate monitor in Ubuntu Mate

Question: How can I calibrate my monitor in Ubuntu Mate without extra hardware? Details: I have installed gnome-color-manager but no gui is available and I can't find an ICC profile file for my ...
-1 votes
0 answers
46 views

LG monitor 22mk400 goes black Ubuntu 23.10.1

I have Ubuntu 23.10.1 installed on a dedicated 1Tb HD and Windows 11 on a separate disk. My graphics card is an nvidia RTX3050, which is running with proprietary nvidia drivers. I have bought this ...
9 votes
3 answers
20k views

Setting up ultrawide (3440x1440) monitor on Ubuntu 18.04

I am trying to setup ubuntu properly on ultrawide monitor. What have I done so far: I have run: xrandr and found out that my connected monitor is HDMI-0: HDMI-0 connected 1920x1080+258+0 (normal ...
0 votes
1 answer
4k views

Ubuntu 22.04 problem with monitor resolution

My ubuntu worked well with a VGA 1920x1200 resolution monitor and the previous version of ubuntu, but when upgrading to 22.04.1 LTS it only supports 1024x768 maximum. The system is an intel I7 with ...
10 votes
2 answers
18k views

Dell Display Manager

How can I get my Dell Monitors software i.e. Dell Display Manager in my Ubuntu 18.04.3 LTS for controlling the monitor via software rather than the physical buttons on the screen ?
7 votes
3 answers
10k views

How to turn off the monitor via command on Wayland (KDE Plasma)?

I like turning off the monitor when I don't need it, to reduce eyestrain and energy consumption (e. g. when only listening to music). On X11, I have been using the sleep 0.5; xset dpms force off shell ...
1 vote
3 answers
5k views

Correct Display configuration. Errors while trying to arrange displays

I am trying to set up my tv with my laptop trough a VGA cable. The display application in Ubuntu throws a lot of errors to me and I have given up in trying to do it myself. I try to apply the 1920 ...
1 vote
4 answers
3k views

Solution for black screen after setting the screen brightness cursor to 0

My screen went completely black after I set the screen brightness cursor to 0. I know it's not very smart, but my previous Linux installation had a minimum value which was allowing the screen to still ...
0 votes
0 answers
27 views

Second monitor freezing ... necessitates restart

I have a fresh install of Ubuntu 22.04 on a 100 GB partition alongside Windows 11 on an HP Envy with an intel core i7 with integrated iRISxe. I've plugged an old Acer monitor to the HDMI port as a ...
0 votes
1 answer
56 views

Ubuntu Desktop 22.04.3 LTS - Raspberry Pi 4 Model B 2GB - How turn monitor on/off from script?

I want to use cron or the like to turn on/off the attached monitor for a Rpi running MagicMirror2. user@user-desktop:~/MagicMirror/config$ lsb_release -a No LSB modules are available. Distributor ID: ...
0 votes
1 answer
57 views

Ultrawide GRUB slowness

I'm using 22.04 with a Dell 34 inch ultrawide monitor (S3424DWC) connected to an NVIDIA 3080 by HDMI. Here are all my installed GRUB versions (although probably unnecessary as they are all from the ...
1 vote
1 answer
4k views

get-edid always fails, yet ubuntu detects monitor make/model in system settings

I am trying to writer some scripts to detect what monitor is plugged in and when. I am not sure if I am going down the correct path, but I notice that no matter what I do trying to use 'get-edid' ...
0 votes
0 answers
60 views

Screen Display Options Missing - Ubuntu 22.04.3

New to Ubuntu. I have downloaded the latest version and installed it on an HP laptop. Attached is a screenshot of the display options. The laptop is connected to a monitor via a docking station. It ...
0 votes
0 answers
61 views

Ubuntu 20.04 . Screen extends beyond monitor in tty/console mode

Adter upgrading to 20.04 the default resolution of 1920x1080 makes screen window extend beyond my monitor I can switch to a lower resolution in the graphic mode (1680x1050 works fine for me) but ...
0 votes
2 answers
190 views

half of my screen suddently stopped working

Yesterday everything was fine, then when I rebooted my computer I got this: I'm not a Ubuntu guru so I don't know what to do here. I tried reinstalling my nvidia drivers, but no luck. Did anyone ...
0 votes
0 answers
32 views

Monitor screen randomly goes blank while using Ubuntu

I have a weird problem. When I am on Ubuntu, screen randomly goes blank and comes back while I am moving the mouse or pressing keys on keyboard. Monitor connections, cables are all fine. The same ...
1 vote
0 answers
35 views

xrandr does not change the screen brightnness

I have two screens connected. xrandr --listmonitors Monitors: 2 0: +*DVI-I-1-1 1920/598x1080/336+1600+0 DVI-I-1-1 1: +HDMI-1 1600/621x1200/341+0+0 HDMI-1 xrandr --current | grep connected DP-1 ...
33 votes
5 answers
176k 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 ...
0 votes
0 answers
22 views

ubuntu 22.04.03 do not reconize size 16:9 / resoluton of monitor samsung 1366x768 60HZ

could anybody help me with the files configuration and commands in order to use this optimal configuration. in this moment xubuntu only recognize 4:3 1024 x 768
0 votes
2 answers
883 views

HDMI stops working with my new Acer aspire E3-112

I bourght a new Acer Aspire E3-112. I use external screens both at home and at work. After installing Ubuntu everyting worked. I used it at home and at work. The second day when I got home the ...
0 votes
0 answers
21 views

External Monitor and Screen Brightness Funcitionality Lost At The Same Time

I've been using Ubuntu several years, and since yesterday, I am unable to connect to my external monitor, and it seems at the same time that my laptop's screen brightness functionality was also lost. ...
4 votes
2 answers
211 views

How can you automate monitor turning off and on in a notebook used as a server Body:

I'm repurposing a notebook as a home server (running Ubuntu Server 22.04 LTS). In order to save energy (and backlight lifetime), I'm looking for a way to automatically turn the monitor off and back on ...
1 vote
1 answer
879 views

Accessing Ubuntu desktop from WIndows through RDP and without monitor

I installed Ubuntu 22.04.2 LTS on a PC. In Settings - Sharing, I activated Remote Desktop and Remote Control. On my Windows 11 PC, I configured the remote desktop to access the Ubuntu PC that is on ...
0 votes
0 answers
26 views

Second monitor does not work

Ubuntu 22.04.3 does not recognize my second monitor connected with DVI cable. It identifies on "monitors" but does not play video
0 votes
0 answers
46 views

Ubuntu 22.04.3 LTS does not detect monitor

I have Hewlett-Packard HP Compaq 8200 Elite with these specifications: Processor : (Intel® Core™ i7-2600 CPU @ 3.40GHz × 8) Graphic: Mesa Intel® HD Graphics 2000 (SNB GT1) I have install Ubuntu 22.04....
8 votes
6 answers
11k views

Ubuntu 22.10 external monitor not working

The title says it all. I just upgraded from Ubuntu 22.04 to 22.10, and noticed that my external monitor doesn't receive any signal anymore. I'm connecting it with a USB-c to USB-c cable. Tried a lot ...
0 votes
1 answer
130 views

Lenovo LS2223WC monitor low resolusion

My fresh Ubuntu 22.04 installation is not OK with Lenovo LS2223WC monitor. Its maximum available resolution is 1024x728. While it happens higher resolutions with other monitors, I wonder if it is a ...
1 vote
0 answers
166 views

Second monitor freezes

I'm facing the following situation: I have a laptop and a monitor connected to it. At least once a day, when I'm using Steam and do activities like open the friends list or just closing Steam (top ...
28 votes
6 answers
88k views

How can I get a DisplayLink USB monitor work under Ubuntu?

I have a DisplayLink-based external USB monitor, which has both power and data over USB, and seems to work perfectly under Windows 7, but only can display a text console under Ubuntu 10.10, and that I ...
0 votes
1 answer
21 views

Monitor problem during booting

I am running Ubuntu 22.04 on a HP EliteDesk 800 G2. Recently the m/c was packed up and stored for a few days. Since reconnecting everything, the monitor turns off after 2 seconds of Ubuntu logo screen....
1 vote
1 answer
39 views

External Monitor Ubunut

I have installed ubuntu 22.04 LTS on my MSI GF65 Thin laptop. I am trying to connect it to a monitor using hdmi cable; the cable works when I use it on windows OS or my ps4 but I am failing to connect ...
0 votes
0 answers
90 views

Ubuntu on Zbook G5 using TB HP G2 dock - internet works but not 4k external USB-C connected screen

OS: Ubuntu 22.04.3 LTS Hardware model: HP HP ZBook Studio G5 I have had a HP G2 120W dock working with my external 4k screen, however the USB-C cable on that dock is a bit damaged so I have got ...
15 votes
7 answers
43k views

How do I find out monitor make / model?

My friend has recently bought a second-hand vehicle with an in-car computer and it's wired up to a touchscreen monitor on the dashboard (very impressive!). Now, I've helped him install Ubuntu on it ...
0 votes
0 answers
51 views

new to ubuntu - unable to work external montor on HP laptop

I'm just a regular Ubuntu user and wondering if someone can help me on how to make my external 19inch LED Dell monitor works via my HP Laptop HDMI. Thank you. OS: Ubuntu 22.04.3 LTS x86_64 Host: HP ...
0 votes
0 answers
43 views

XRandr Refuses Custom Resolution

I've got the exact timings I need for my monitor from CRU in Windows and they work great, in Windows. However, using XRandr and any of the currently available solutions on the forum never results in a ...
0 votes
1 answer
261 views

xrandr - is laptop display always "eDP-1"

I want to write myself some help scripts targeting the laptop monitor and I want to make it generic. I've noticed that on 3 different laptops with Ubuntu 22 the laptop display is always marked in ...
0 votes
0 answers
60 views

Remote Ubuntu pc

I built a great ubuntu pc at my family house, but now moving to university dorms. I can't take my pc with me because of space and electricity issues, but will take my monitor and laptop (that has ...
0 votes
1 answer
163 views

Problem with custom resolution with AMD

I can't get the whole screen to work so if anyone here could help me it would be great... All I need is a way for 1920x1080_73.00 to work on my monitor as a DP-1/VGA-0. Does anyone else here knows how ...
0 votes
0 answers
367 views

Problems with custom resolution with amd on ubuntu 23.10

I can't get the whole screen to work so if anyone here could help me it would be great... All I need is a way for 1920x1080_73.00 to work on my monitor as a DP-1/VGA-0. Does anyone else here knows how ...
1 vote
0 answers
40 views

360' monitor touch screen is off when rotated, draws in the opposite side , what to do?

I have an Asus Rog Flow 13 and its a touchscreen laptop that you can rotate it 360 to draw with stylus, but when i have my laptop open in the tablet mode , it draws on the opposite side of where i'm ...
0 votes
0 answers
280 views

4K 60Hz refresh rate only works intermittently in Wayland and X11

I can get a 4K 60Hz refresh rate to work on an Ubuntu Wayland session. I do have a monitor, graphics card, and HDMI cable that all support 4K 60Hz refresh rates (they all work fine in Windows). At ...
0 votes
0 answers
47 views

Why sum of this process CPU(%) is not equal to total cpu(%) utilisation in top output

In the attached image of top command output, you can see the idle is 53.3% means CPU utilization is 52.7% but, sum of CPU% of all the process listed (Image cropped for CPU% > 0.0) is more than the ...
8 votes
12 answers
19k views

Ubuntu external full HD monitor flicker

I had an issue with my external HD monitor which started flickering and the rows of pixels were unaligned with each other a bit so the picture was kind of blurry. I tried everything from changing some ...

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