Questions tagged [flicker]

When something flickers it flashes repeatedly. Flickering in Ask Ubuntu is generally referring to screen issues, or to describe an LED, such as, "The hard disk access light flickered."

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"[[17~^" is auto added in terminal

When I open the terminal and press 6, it start typing "[[17~^" automatically and it continues. I also noticed that sometime it starts without pressing 6 or any key. Additional issue to that, ...
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Very fast flickering screen (Xubuntu on Lenovo Yoga)

I installed Xubuntu (i.e. ubuntu light) on a (laptop/tablet) Lenovo Yoga 900S 12ISK with HD Graphics 915 video card. After bios update (to allow for Linux) installation went fine but the login screen (...
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Screen Flickering after update to 22.04

Straight to the point, after update i started to notice some weird screen movements. Today, using LOCalc, i was able to reproduce the error. When mouse pointer still over an horizontal area of the ...
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Black screen flickering after update to 22.04

I've been using 20.04 and I updated to 22.04. After a few days a black flickering appears randomly, it's very annoying and it didn't happen before. Any idea what might be the cause?
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Ubuntu 20.04, i7 1165G7 i915 Intel Xe Graphics 4k@60hz Screen Flickering

I am using Lenovo Thinkpad notebook, Type-C (Thunderbold 4) port is available. I can't use 4k@60hz because the screen keeps turning off (black screen) and on again. When navigating with the mouse ...
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Flickering wallpaper, panel, etc. in Kubuntu 20.04

Many graphical elements are flickering all the time in the KDE Plasma environment. This problem is affecting the wallpaper, the panel, the login screen, as well as many others. Unfortunately, this ...
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Lenovo thinkbook: laptop screen flickering, second monitor

Context: LENOVO_MT_20VF_BU_idea_FM_ThinkBook 14 G2 ARE CPU, GPU: Ryzen 3,4300U RAM: 8gb driver=amdgpu latency=0 Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal I have problem ...
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Ubuntu 20.04 screen flickering with amdgpu and nvidia drivers

I have freshly installed ubuntu 20.04 and Budgie desktop on an Asus ROG Zephyrus G15 (AMD Ryzen 7 4800HS, 16GB ram, integrated Renoir graphics, Nvidia GeForce 1660 TI, 144Hz 1080p monitor). Everything ...
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Screen flickers in Ubuntu 20.04

My screen flickers when I open the lid after having closed the lid earlier, it keeps on flickering and doesn't stop. It flickers even when I go to shell (Ctrl+Alt+F3), but if I lock it again (Super+L) ...
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Random Screen Flickering on ubuntu and kde (including hdmi second monitor)

First of all, I am a novice linux user and I really do not want to abandon it. Hi, I have been having screen flickers since I had my laptop, I tried lots of solutions and anything related that can be ...
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Screen Flicker on 20.04 with AMD CPU/ Nvidia GPU

I am having a serious screen flicker problem on a laptop with 20.04 and Kernel 5.13.0-27-gneric. I am not sure if the problem came with the recent Kernel upgrade or a little earlier, but it started ...
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How do I revert the last installed updates?

Today I just clicked yes to a few updates that my Ubuntu 20.04 LTS suggested. Since then, when I boot up my laptop everything is fine. But when it goes to suspend and wakes up the screen is flickering ...
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Screen repeatedly goes blank, flickering off and on. Lubuntu 20.04

My screen keeps switching off for about a second, then switching back on. This is getting increasingly annoying. It can happen several times a minute, or not happen at all for an hour or so. It always ...
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Lenovo idepad Slim 7i Pro display flickering when using keyboard or touchpad

Running Ubuntu 21.10. Screen flickers when I press any keyboard key or when I use the trackpad. The system is essentially unusable. Same behavior with 20.04 LTS. The interesting thing is that if I ...
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Screen flickering on Ubuntu 20.04 with Nvidia 495 under high CPU

I'm having a strange issue for the past couple of months. I run an Ubuntu 20.04 on a Lenovo Y740 laptop (RTX 2070). With the latest Nvidia drivers (currently, I'm testing with 495), I'm having an ...
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Screen flickering on mouse move (Ubuntu 20/21, Lenovo IdeaPad 5i Pro)

I recently purchased a Lenovo IdeaPad 5i Pro (16IHU6) with the following configuration CPU: i5-11300H GPU: nVidia MX450 Display: 2k@120Hz and I fail to run Ubuntu 20.04/21.10 (to be honest, any ...
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Display flicker on new HP 14S laptop with Ubuntu 20.04

Dual boot installation on new HP 14S laptop using latest Ubuntu 20.04 LTS on a USB stick. The machine has Intel i5 processor with Intel iRIS Xe graphics. When running from the USB it is necessary to ...
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Ubuntu 21.10 Flickering Screen on Wake or Screen Resolution Change

When I wake my computer, the login screen and DE looks like the graphics card is broken (it's not). the screen has flickering lines and blocks of the screen flickering off an on. The manual resolution ...
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Ubuntu lts display is zoomed/scaled after changing dell screen

I used to have screen flickering problem and it became frequent. When I visited the service center they said it is the screen problem and changed the screen in 1 day. Next day when I booted into ...
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Flickering 4k@60Hz monitor

I have bought new laptop Dell xps 15 9500, installed Ubuntu and tried to connect external monitor, but got some problems. If I choose 4k@60Hz monitor occasionally got blank which make it unuseable. I ...
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Screen flickering on Ubuntu 20.04 - HP Spectre X360 with Intel Skylake GT2 [HD Graphics 520]

I am using Ubuntu 20.04.3 LTS on my HP Spectre X360 with Intel Skylake GT2 [HD Graphics 520] and I am having flickering graphics. Unlike similar entries that have been reported, my flickering is ...
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Screen flickering and hdmi port not being recognized -- related problems?

I installed 20.04 on an HP laptop with Intel iris(xe) graphics adapter, dual-booting with Windows. The screen starting flickering after an update. I've read a number of suggestions and none seem ...
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Screen flickering black after upgrade from 19.04 to 21.04 (ubuntu emulated on virtualbox)

I have a macbook with 10.15.7 and virtualbox 6.1 I just updated ubuntu from 19.04 to 21.04 Now when I login into ubuntu every few (randomly) seconds I get a black screen for a while. It seems a black ...
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Screen flickering and slow response to mouse moves

I am new to linux and I am using Ubuntu 20.04 on my Dell device which uses intel i3 processor with Intel hd graphics 5500. The machine was working well for a month and then suddenly yesterday I ...
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Ubuntu flashing screan on power off and turn on after suspend

I installed ubuntu 20.04 on my Dell Studio 1555 laptop and It flashes two or three times when I try to turn it off and when It woke up after suspend. I had this problem with older versions of Ubuntu ...
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Intense screen flickering, vertical rainbow bars, display problems on Ubuntu 20.04, Lenovo X1 Carbon

Starting today (Aug 24) I observed intense screen flickering and tearing on my Ubuntu 20.04.3 on the Lenovo X1 Carbon. As far as I know, there were no shutdowns, updates, or changes. I observed this ...
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Top row of pixels flicker magenta on any version after 20.04.2 LTS

(For specs please see below) Hi, I dualboot Ubuntu and Windows 10 on my laptop. I installed Ubuntu 20.04.2 LTS from a live USB and I was using it for quite a while without any problems. My frustration-...
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Frequent screen flicker after kernel update

Been running Ubuntu for many years. After kernel 5.8.0.55 update to 5.8.0.59 screen flickers once or twice a second. It's variable but is continuous. Rebooted into kernel 5.8.0.55 and all is well. New ...
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Screen flickering after upgrade to Ubuntu 20.04

I recently upgraded from Ubuntu 18.04 to 20.04 LTS on my laptop (Lenovo Ideapad FLEX 6-14IKB). After a while the screen would start flickering (similar to the video in this post here). I notice that ...
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Screen flickering on startup

I have latest version of Ubuntu installed on my system. Dell vostro Uhd integrated graphics Screen flickering on startup and not booting Please help
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Screen flickers when opening/closing apps in wayland

I am using Ubuntu 21.04, with AMD Ryzen 5 processor and RX 560X graphic card. When I open/close any app (Brave,VSCode,Slack etc) screen flicker with a delay of 1 sec it only happens in wayland never ...
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How to stop screen from vibrating?

Couldn't find anybody else with the same or similar problem. After rebooting my computer one time, it just randomly started flickering all over. It's like my LCD screen is a CRT that's not set up ...
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After Upgrade to ubuntu 18.04 laptop screen was flickering

I am using Dell latitude 3580 model recently i upgrade Ubuntu 18 .After upgrade my laptop screen was flickering frequently i checked Hardware that's fine no issues .Any solution for this to fix ? i ...
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1 vote
1 answer
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Kubuntu 20.04 - Notification flicker

I am using Kubuntu 20.04 with KDE Plasma 5.18.4 My issue is: The notifications are flickering and I want to get rid of this. I tried various themes, compositors (OpenGL 3.1, OpenGL 2, XRender) and ...
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5 votes
2 answers
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Strange graphics issues such as flickering application windows and inconsistent display lagging [duplicate]

My computer was acting really strange; the windows were flickering and parts of windows of different applications were partly appearing at random places. Also when I was typing, my computer seemed to ...
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Flickering GUI Ubuntu 20.04 Desktop

I installed fresh copy of Ubuntu 20.04 Desktop version for more than a month, and everything was okay. Suddenly 3 days ago (without any new installations), everything became crazy whenever (specially ...
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239 views

Ubuntu 20.04.2 LTS flickering and flashing on/off problem

Hi I have an issue with my laptop. At first I reboot for some reason and the ubuntu login screen didn't show up. Then I have to change the display manager to light-dm. It was gdm3 and it was working ...
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3 votes
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Ubuntu 20.04 LTS flickering screen

I just installed a fresh Ubuntu 20.04 on my Lenovo Z580 laptop and it’s dual boot with Windows 10. Windows 10 runs fine, but whenever I launch Ubuntu, my PC screen starts flashing continuously. The ...
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2 answers
249 views

Unable to install proprietary nvidia drivers on Xubuntu 20.04

I upgraded a bunch of old machines from Xubuntu 18.04 to 20.04, everything going smooth except a distressing flickering when windows go on focus or scroll (i can briefly see other windows that are in ...
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3 votes
1 answer
177 views

Colours dots move around when using firefox

Green, blue and black dots show on the screen when I use firefox. They move around and quicker when I write or do a search. Sometimes they appear thicker somtimes less. They don't appear in other ...
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Samsung TV blinking/blanking when connected via a HDMI cable - how do I get it stable?

I'm attempting to use a TV as an external monitor for my laptop, connecting with a HDMI cable. When I plug the cable into HDMI 1 (on the TV, the laptop only has a single HDMI port) both the laptop ...
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1 vote
2 answers
173 views

Ubuntu 18.04 window flickering/strobing white for specific applications

I've been having lots of graphical issues with specific applications on Ubuntu 18.04 using my Dell Latitude 7490. For instance on GitKraken: The same thing happens on: Zoom Slack Signal Skype ...
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1 vote
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Display weirdness after update, PC unusable

Please forgive me if this is already covered somewhere, I'm using the Stack exchange app on my phone because my PC is unusable. Today, I ran the usual updates Ubuntu provides me with, but when I ...
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334 views

External monitor instability while connected via HDMI

Recently I tried using HDMI connection from my laptop to my second screen. I can connect to the screen without any problems, but the connection is very poor. The second screen keeps flickering and ...
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Ubuntu 20.04, Nvidia GTX 1660 Super screen flickering [closed]

It seems like the problem is there only with Scaling set to 200%. If I use Fractional scaling and set 150% or 175%, there is no flickering. However, I dislike that that way the image is way less crisp ...
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3 votes
1 answer
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Is Intel i5-1135G7 Iris Xe Graphics supported? Screen flickers and tears

I got a Lenovo Yoga 14s 2021 with ubuntu 18.04 OS installed on it this week, but the screen keeps flickering and tearing whenever the mouse moving or anything change on the screen. I've tried using ...
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Ubuntu 20.04.1 / Desktop icons flicker when a file is deleted [duplicate]

I recently updated from Ubuntu 18.04.4 to 20.04.1. Now I noticed that the icons on the Desktop disappear shortly when I delete a file by pressing the Del key. There is no flickering when I delete a ...
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2 votes
1 answer
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Screen flickering on certain apps in Ubuntu 20.04.1 LTS

I use Ubuntu 20.04.1 LTS on a dual-monitor setup. These are the relevant components of my PC: CPU: AMD Ryzen 7 3700X 3.6GHz Motherboard: Asus TUF GAMING X570-PLUS Memory: Corsair Vengeance LPX 16GB (2 ...
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502 views

Flickering Brightness Ubuntu 20.04

I am having an issue with the brightness flickering on my machine that is running Ubuntu 20.04. My machine is dual booted, and this only happens when I am using Ubuntu. I have seen a lot of other ...
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Ubuntu 20.04 : continious screen flicker after return from supend ( *ERROR* CPU pipe A FIFO underrun )

After return from suspend the screen of my laptop flickers. You can't continue work with that. In kernel log you see : [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun ...
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