Questions tagged [display]

Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)

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Ubuntu keeps showing either black screen or display output is not active when using emulation

For my pentest course I am required to use an ubuntu vm as my target vm. my computer environment: I have a macbook air M1, I am installing it with emulation via UTM as it is a qcow2 file. I believe it ...
12 votes
7 answers
20k views

Black screen after logging in, after upgrading to 20.04

I tried adding a new user and it works, I can login just fine with that user. So I tried removing (renamed it) my home directory, and that also fixes it. Then I tried removing the .config/monitors....
2 votes
3 answers
8k views

vmwgfx failure on Ubuntu boot

An Ubuntu (64 bit) virtual machine was working on a Windows 10 computer through VM VirtualBox Manager without a problem. Today, suddenly, it gives the error below during the boot. vmwgfx 0000:00:0Z.0 [...
5 votes
2 answers
6k views

How to fix the physical size of a display in xrandr?

In a nutshell, my problem is that my TV is overscanning and I have nothing like a "Screen Fit" option in the TV. The TV is a Samsung model LN32R71B that I believe is providing a corrupted EDID file, ...
1 vote
2 answers
3k views

Display became too big for the screen after installing an update for Ubuntu 18.04 LTS

I am new to Linux and my laptop is asus gl552vw with two graphic cards, one of them is NVIDIA Gforce. I find both ASUS and NVIDIA have problem on Linux especially in terms of high resolution and all ...
-1 votes
0 answers
27 views

Display is monochrone - Using Mantic Minotaur in both Wayland and X11

I am using Mantic Minotaur and the display is completely desaturated. Please help me return the display to what it was under previous versions with normal level of color.
1 vote
0 answers
47 views

Ubuntu is lagging on a UN50JU6500F TV

I have installed Ubuntu (24.04.4) and connected it through HDMI to the UN50JU6500F Samsung TV. When I log in, the mouse and really everything starts to lag enormously, rendering the PC unusable. Funny ...
7 votes
1 answer
1k views

Ubuntu 22.04 / Modify Power Saver Behavior (Do Not Dim Screen)

First of all, I think it's really cool that Ubuntu 22.04 (I upgraded from 20.04, the last LTS version) now has the ability to switch between different profiles. Depending on what I do, I have times ...
2 votes
1 answer
7k views

Configure Xorg to use integrated Intel, not Nvidia

I know I should change the configuration in something like a 20-intel.conf file that should be somewhere, but I could not find it and I suspect that might highlight deeper problems, it is not in /use/...
0 votes
0 answers
27 views

Ubuntu 20.04 laptop screen is blank, but monitors connected to HDMI and USB-C ports work

I am using Ubuntu 20.04.6 LTS (Windows/Ubuntu dual boot, with Ubuntu on an external SSD). A long time ago, I made changes such that my two external monitors (one with an HMDI cable and one with a USB-...
-1 votes
0 answers
24 views

snowflake shows at the beginning of boot and reboot a ubuntu 2204 VM on Xen (Only UEFI/Secure boot)

The boot process below includes a step displaying a snowflake, which is not present in the BIOS boot process.
1 vote
0 answers
34 views

No dual display obtion on my Ubuntu 22.04.4

I am using a Lenovo Thinkbook 16 G6 (2024 version) laptop. I tried to install Ubuntu 22.04.4 (dual boot with Win11), but when I needed to use dual display, I found out that my Ubuntu has no dual ...
1 vote
0 answers
10 views

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 ...
1 vote
2 answers
4k views

Ubuntu won't do 1920x1080

Both my monitors (one over DVI other over HDMI) have a native resolution of 1920x1080 (16:9) but the only two options for resolution in the "Display" section of system settings are 800x600 (4:3) and ...
0 votes
1 answer
5k views

Cannot install RTX 2080 Ti in Ubuntu 18.04 LTS

Cannot install Nvidia driver for RTX 2080 Ti in Ubuntu 18.04 LTS !!!! I am trying to install nvidia driver with RTX 2080 Ti in Ubuntu 18.04 LTS After Installing nvidia-driver (version 418.57) , the ...
1 vote
0 answers
26 views

Ubuntu 22.04 LTS after change to X11 from wayland, external monitor shows display blur with intense yellow

Because Wayland does not support remote control on Ubuntu, so I changed Wayland to x11 by sudo gedit /etc/gdm3/custom.conf and remove '#' from #WaylandEnable=false But after this, my external monitor ...
1 vote
1 answer
4k views

DVI-VGA adapter problem

Is it possible to add unsupported resolution when monitor is connected via DVI -> VGA (passive probably) adapter? The problem is that the monitor (Acer AL1916W) is reported as CRT monitor, mainly ...
0 votes
1 answer
72 views

HDMI display port not detected on Ubuntu 22.04

I'm trying to connect a Lenovo Legion 5i Gen 7 laptop with Ubuntu 22.04 (kernel 6.5.0-21-generic) to an external monitor LG 27gp850p-b. The Displays shows only my primary display and xrandr --auto ...
0 votes
0 answers
14 views

Need Help Setting MSI Pro MP271AP 27" Monitor to 100Hz in Ubuntu

I recently purchased an MSI Pro MP271AP 27" monitor with a 100Hz refresh rate. While the monitor functions perfectly at 100Hz in Windows, I'm encountering difficulties setting it to the same ...
5 votes
7 answers
8k views

Istat menu 3 of Mac equivalent?

With Mac, I have istat that shows computer info (memory/cpu/network ...) in real time. Does Ubuntu have a similar application?
51 votes
10 answers
71k views

Is there a software utility to adjust screen gamma/brightness/contrast?

I use to work at night and it is eye-hurting to watch at lightbulb-bright screens (I've got two - laptop's built-in panel and an external 18-inch CRT) in a dark environment. So I adjust my screens to ...
1 vote
0 answers
35 views

How to fix display resolution issues on 2019 iMac 21.5in retina4k running 22.04

Apple specs says the display runs at a 4096x2304 resolution. By default on a fresh install of Ubuntu 22.04 the maximum selectable resolution is 3840x2160. I edited the grub configuration file to set ...
3 votes
1 answer
14k views

Can "gnome-network-displays" work on a Ubuntu 20.04.3 running on Oracle VM VirtualBox

I am trying to simulate casting my display to a miracast sink on linux. It seem like gnome-network-displays is a good option. I was having trouble getting it to work and was not sure if the fact I am ...
0 votes
0 answers
15 views

Blurry text for all non system application in Ubuntu 22.04

I have laptop and external display, to make display work properly I have to turn on fractional scaling and all was set. But when I opened chrome, vs code and other apps, text were stretched. I ...
0 votes
1 answer
83 views

Install DisplayLink drivers on Ubuntu 22.04 LTS, fix the square around mouse error and use non accelerated drivers instead nvidia/amd ones

I have a fresh installation of Ubuntu 22.04 LTS and would like to install the DisplayLink drivers so that I can use various DisplayLink peripherals and I tried some official passages but I'm gettin a ...
0 votes
0 answers
15 views

Reat Mirror Display to single display

After selection mirror display, primary computer screen has become black. How to reset to normal single display.
0 votes
1 answer
186 views

Ubuntu Server screen gets dark and shows 'no signal' after successful boot

We install Ubuntu LTS Sever editions like 16.04/18.04/20.04/22.04 on Dell/IBM/HP servers, after these Ubuntu servers boot successfully, as usual, the screen will show messages like below: Ubuntu 20.04 ...
1 vote
0 answers
37 views

Display Crash Issue During Ubuntu 20.04 Installation on Lenovo P360 with Nvidia T1000

I am in need of some assistance with installing Ubuntu 20.04.5 server on my Lenovo P360 workstation with an Nvidia T1000 graphics card. I have encountered a problem that only appears with Ubuntu 20.04 ...
2 votes
2 answers
82 views

Can't adjust brightness on my Lenovo IdeaPad with OLED display

I had bought Lenovo IdeaPad Pro 5 14IMH9 this week, but when I installed Ubuntu 22.04.4 LTS, there is no option to adjust brightness. I feel like I tried everything with my friend - updating drivers, ...
0 votes
0 answers
13 views

xrandr --panning returns BadRRCrtc error (Ubuntu 22.04)

I occassionay need to use panning to have a larger (virtual) desktop to move around on my Lenovo laptop. On my previous laptop I used xrandr for that. xrandr --listactivemonitors Monitors: 1 0: +*...
0 votes
0 answers
54 views

Ubuntu 20.04 does not recognize display, sound and other components on HP

I'm having issues with this new HP Elitebook 840, G10... It came with W11 installed and works well. I put an ubuntu 20.04 on dual boot and all internal components drivers seem to be failing... Took me ...
1 vote
1 answer
55 views

Scrivener Appimage graphic display broken after Ubuntu update (Feb 27,2024)

I am using the Scrivener Linux Beta image on Ubuntu 22.04. I know it is dated, and I have a paid date copy on a Windows 11 machine, but honestly, for first drafts, I just like the calm distraction-...
1 vote
0 answers
153 views

sudo upgrade evdi.ko.zst freeze at install

I did run sudo apt update, and afterwards sudo apt upgrade. Normally, this is all fine but it got stuck for ages. I cancelled the process. I tried to do it again but the terminal tells me to run sudo ...
1 vote
1 answer
1k views

Display settings not saved across sessions when using fractional scaling

I have a pc with: Nvidia gtx1080 two 4k monitors Ubuntu 19.10 nvidia xserver installed I changed the scaling and order of monitors in Ubuntu Display settings. However when I reboot or logout/login ...
6 votes
5 answers
12k views

Screen turns off while watching video (VLC player & SM player)

I'm on ubuntu 12.04 and I've already read similar questions and answers regarding this issue but none of them reported the same problem as I have. The problem is that the screen turns off after 10 ...
0 votes
0 answers
54 views

Abnormal display on laptop screen

My laptop screen did not display properly when I installed Ubuntu 22.04. The display is out of place in the middle (horizontally), and the screen flickers. The computer graphics card is an 11th-...
13 votes
1 answer
3k views

Firefox on Ubuntu 22.04 is garbled on HP laptop

I am trying out Ubuntu 22 LTS on my new laptop with the intent of installing it beside windows. Everything looks fine except when I click on Firefox it comes up garbled as in the attached pic. I am ...
1 vote
1 answer
152 views

Ubuntu resolution stuck at 1024x768

My PC configuration includes a 4th generation Intel Core i3 processor, Intel(R) HD Graphics 4400, 8GB of RAM, and a 128 GB SSD. My monitor is a 19 inch Gigasonic, connected by HDMI. When I used ...
-1 votes
0 answers
58 views

DP over USB-C not working on Dell G15 - tried all the suggested solutions

I know this may look like a duplicate but I've followed every single suggestion I found in different questions on AskUbuntu and I still can't get it to work. I've been fighting for over 4 days to get ...
-1 votes
0 answers
43 views

Changing screen orientation makes display unusable

I've installed Ubuntu 22.04.4 LTS and have connected three monitors to my desktop. My main monitor is connected directly to the graphics card (GTX1060) and the other two are connected to a usb-c dock (...
-1 votes
0 answers
56 views

Addional display is 1920x1080 but ubuntu is recomending only 1024 x768

I am using Ubuntu 22.04. I had old LCD 1024 x 768 resolution, then I upgraded to a 24 inch 1920x1080 resolution LCD. But Ubuntu is showing old resolution up to 1024 x 768 in display settings for ...
3 votes
2 answers
345 views

Ubuntu 23.10 - Display color calibration problem

I'm trying to adjust the color calibration for my LCD video display. I purchased a Datacolor Spyder X Pro colorimeter which is supposed to be supported. I installed argyll 2.3.1 and its support files, ...
1 vote
1 answer
137 views

System freeze with dual screen

I am working on Ubuntu 22.04.3 LTS. I connected external monitor by USB Type-C. After that system freezes randomly. Only hard reset can help. Syslog shows: Jan 31 10:13:59 AcerAspire kernel: [ 412....
0 votes
1 answer
75 views

Mirror single application / workspace to an external screen / beamer

When connecting an external monitor / beamer / projector to my laptop, I can choose between two modes: Join Displays and Mirror (see here). When teaching, I need a combination of the two modes: I ...
0 votes
0 answers
24 views

Flashing white screen when GPU is deployed for AI generation tasks

Ubuntu screen flashes white, sometimes partially, sometimes on the whole screen when GPU is used for processing generative AI workloads. It is very annoying and I have to logout and login again every ...
1 vote
2 answers
140 views

How to use the highest 1920x resolution that is not out of range?

I found no option to switch to 1920x1080, even though Windows supports it. Xrandr can add a 1920x resolution options at 60Hz to the resolution selector, but when I click apply the GPU or internal ...
0 votes
0 answers
35 views

Trying to add 1920x1280 mode "out of range" error

Testing kubuntu from usb stick. Single, wired, Viewsonic 14415 monitor. I use the following commands to add 1920x1280 mode: cvt 1920 1280 xrandr --newmode "1920x1280_60.00" 206.25 1920 ...
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 ...
0 votes
1 answer
52 views

How to set brightness and color temperature in iMac late 2009 after setting nomodeset?

I am running Kubuntu 22.04 on an iMac late 2009 27 inch. It is also known as iMac 11,1. This computer has AMD ATI Mobility Radeon HD 4850 graphics, and it only shows a black screen beyond grub unless ...
11 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 ?

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