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

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NVIDIA drivers cause screen flickering (Ubuntu 15.04) (Dell Inspiron 15-3542)

Installing NVIDIA drivers (340.76 proprietary or tested) from Additional Drivers causes screen flicker and doesn't go into the GUI. To be clear, laptop has Dual Graphics (NVIDIA GeForce 820M and Intel ...
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6 views

Screen flickering during fullscreen video playback

When I adjust the brightness or volume using the keyboard media buttons during full screen video playback, the screen flickers. This happens in both Vlc and the default Videos application. Is there a ...
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1answer
278 views

Vivid Vervet upgrade mess - flickering

I upgraded to Ubuntu 15.04 which was just released. After reboot, I get as far as the login screen but it only appears for a second, then it goes to an infinite loop of screen flickering. How could I ...
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1answer
59 views

14.04 w/ Intel HD 4000 display crashes when changing resolution

So, I just upgraded to Ubuntu 14.04 over spring break because MATE seems to have gotten to a point that it is generally usable with Compiz for me. I did a minimal install, and put MATE on top of that, ...
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2answers
44 views

Ubuntu constant screen flicker. Running hot

I recently installed Ubuntu on my hp desktop and I've had a lot of problems. After the initial install I got a lot of screen flicker and it eventually overheated and turned off (when I tried to turn ...
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1answer
141 views

Dual monitor setup - filickering issue with ATI Radeon open source driver

I'm having a flickering issue on a Toshiba Satellite A305 laptop with Radeon Mobility HD3450 graphic card and external monitor setup. Ubuntu 14.04 with NO proprietary ATI drivers installed. The dual ...
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50 views

Laptop Monitor Flicking then turning completely black when using Ubuntu

When I am using my Ubuntu on Virtual Box, my laptop screen blinks then turns black. The only way I've found to be able to bring my laptop back is Ctrl +alt +del. The laptop is still on but the monitor ...
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67 views

Kubuntu 14.10 screen flickers and chunks of it turn black while resizing windows

With any window,when I resize it by dragging the sides or corners, the screen flickers gray, black, all around the window, just a bit irritating. Has anyone encountered this and have found a fix ...
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164 views

Ati Radeon RS690 Flickering

Just installed Ubuntu 14.04.1 LTS on a Toshiba Satellite A210 Laptop The Graphic chipset is ATI RADEON R690. I have a gentle but fastidious flickering, you can see in this youtube video: ...
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1answer
183 views

Screen repeatedly goes black for a few seconds after suspend

When I suspend my laptop and then resume, the screen repeatedly goes black for a few seconds and then returns to normal. This happens randomly about once a minute without my behaviour having any ...
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117 views

14.10 unity | Pointer Flicker & can't move launcher | Dual monitor w/ dual video cards

I have a clean 14.10 desktop install (specs below) with two video cards each powering an HDMI monitor I have two issues, which I believe are related: the left monitor has regular pointer flicker, ...
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1answer
263 views

Persistent Display Issues in Ubuntu 14.04 on Toshiba Satellite L75 B7270

At the very top of my screen there is a thin flashing pink line, and all the virtual consoles sport several multi-colored vertical flashing lines, and the console text flickers. Some specs: I ...
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192 views

Ubuntu may have broken Windows 8 partition, endless flickering loop on boot. Can I still get information in it? [duplicate]

I own an MSI GE70 2OE-107US with Ubuntu 14.04 dual-booted with Windows 8. After a gaming session in Linux, I had to switch back to Windows. I reboot, and I get this whenever I select the Windows Boot ...
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1answer
214 views

Weird (and annoying) screen flicker on Compaq Presario CQ50

I have a Compaq Presario CQ50 laptop. It is running Windows Vista Home Premium and Ubuntu 14 LTS. I have a NVIDIA GeFORCE 8200M G. I installed 331.79 drivers for it (as recommended in another post) to ...
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486 views

Firefox flickering issue

I'm running Xubuntu 14.04 The image below shows the problem with the new animated homepage. I got the same kind of problems with some some videos that don't come from youtube. It seems like there ...
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0answers
261 views

Screen Flicker on Ubuntu 14.04, Lenovo W540

I have one external monitor connected to VGA output. In Ubuntu's System Settings -> Displays, the built-in display is disabled and the external monitor enabled as the main screen. With this setup, ...
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1answer
228 views

14.04 live whole screen flickers

Trying to live boot(and install) ubuntu-14.04.1-desktop-amd64.iso from a usb-stick and it gets to some login screen before the entire screen flickers or rather rerenders over and over. Machine is ...
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187 views

Lock screen flickering Acer Aspire E5-511

I got my new Acer Aspire E5-511-P2AV and installed Ubuntu 14.04. When I lock the screen the screen begins to flicker. Every 2-3 seconds the brightness goes up very shortly and then it's black again. ...
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1answer
115 views

Mouse is blinking/flickering at my built in monitor with an external monitor, please help

I am using a Thinkpad W530, and due to my works, I need to use an external monitor. I am using nouveau and nvidia-prime to switch between intel and nvidia adapter. After I connected and switched on ...
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0answers
132 views

Need solution for flickering mouse cursor in Ubuntu 14.04.

I made a fresh Ubuntu 14.04 installation on my lenovo laptop (z570). After successful installation, the mouse cursor is flickering and disappearing. I tried disabling the unknown display in the ...
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0answers
17 views

Screen sometimes keeps cycling between the updated view and the last view

I have installed Ubuntu 14.04 in my new computer and the screen sometimes keeps cycling between the updated view and the last view as shown in this video. It also happens outside the terminal and in ...
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0answers
1k views

How to fix Xubuntu 14.04 screen flicker that started after update?

Every few seconds the entire screen flickers. This began after updates over the weekend (30-31 August). The machine is a Toshiba Satellite P200D, 2GB, AMD Turion 64X2 running Xubuntu 14.04. Things ...
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1answer
2k views

How to resolve screen flickering in Xubuntu 14.04?

I have been using Xubuntu 14.04 alongside Windows XP. Today all of a sudden while surfing the Internet the screen started flickering. I restarted the computer, it ran successfully but the same issue ...
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1answer
187 views

Screen flicker present in all operating systems after error in Ubuntu Touch [Nexus 7 2012 wifi]

I installed Ubuntu Touch stable 10 with MultiRom. When I swiped from left to right Ubuntu froze and the screen started to flicker. I have removed Ubuntu Touch and still have the stock Android 4.4.4 ...
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312 views

Lenovo IdeaPad N580 - Screen ALWAYS Shaking/Flickering

The screen flickering all began a few weeks after installing Ubuntu 13.10, and (unrelated to this specific problem) the laptop wouldn't upgrade to 14.04 through the usual way. Recently, though, I ...
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211 views

Screen Flickers on Live Boot : Dell Inspiron 1440 : Ubuntu 12.04 / 13.10 / 14.04

When booting from Ubuntu Live USB, the screen fickers (right on the ubuntu logo) very fast and the boot process hangs. I have tried to boot the following versions but all of them have the same issue. ...
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58 views

AMD Radeon problem

I have an AMD Radeon HD 7870 graphics card with the mesa/fglrx drivers. Everything works except for the HDMI connection, it flickers with the colors on the screen. VGA/DVI works fine. I have Catalyst ...
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92 views

Latitude e6500 Flickering Sreen

I just installed Ubuntu 14.04 on my Dell Latitude e6500 (deleting Windows 7 in the process) and it seems to be running well except every 10 seconds or so the screen becomes very flashy/blurry. This ...
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0answers
406 views

ATI HD5450 w/ Ubuntu 14?

So, I'm running Ubuntu 12.04 right now. Last night I realised that I'm way behind as we're up to 14! Decided to run the updater and figured I'd take the path of least resistance (but lengthy ...
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1answer
5k views

YouTube Videos are flickering on Chrome

I am using a Lenovo IdeaPad U430p with Ubutu 14.04 LTS. There is a GeForce GT 730M built in and there are also some drivers available: NVIDIA binary driver - version 331.38 from nvidia-331 ...
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1answer
190 views

Previous frame seems to flicker in any type of window

Recently my 14.04 setup has run into some strange problem. Basically almost all windows (often) start flickering the "previous frame" (or that is what it feels like). There doesn't seem to be any ...
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5answers
12k views

Weird partial screen flickering after upgrade to 14.04

I have been bothered by this issue for few weeks already. The problem started when I upgraded to 14.04. Parts of my screen are sometimes flickering like shown on 2 videos that links I attach below: ...
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1answer
248 views

Mouse Flicker on Triple Monitor setup Ubuntu 14.04

I am currently running Ubuntu 14.04 with Kernel version 3.13. I have two ATI HD4650 graphics cards and am attempting to push display on 3 monitors. The first card is attached to 2 monitors via an HDMI ...
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1answer
190 views

Dual monitor flickering in Ubuntu 12.04 with ATI

This question might have been asked before but the solution posted there don't work for me. I have a laptop with the usual VGA output for a second monitor. On Windows I had no problem with connecting ...
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2answers
1k views

Ubuntu 14.04 LTS screen is flickering on Dell Optiplex 9010 AIO system.

I have just installed Ubuntu 14.04 LTS alongside Windows 7 on Dell Optiplex 9010, all in one system. As I boot from my bootable pendrive then screen flickers. I thought that problem may get solved ...
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974 views

Flickering/Flashing screen problem related to keyboard

This will seems quite bizarre but that's a huge problem for me, I'm facing it for a long time since Ubuntu 12.04. My Ubuntu/Linux Mint/Debian (Unity/Gnome) always starts flickering after using the ...
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1answer
177 views

A problem with a strange flickering/undulating effect and a related question about drivers on Ubuntu

I have been having a very frustrating problem in Ubuntu. Sometimes, there is a graphical effect that can only be described as flickering or undulation. I think undulation is the most accurate one, ...
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1answer
657 views

13.04 flickering mouse pointer [duplicate]

I'm running 13.04 on my laptop. My laptop has a tendency to run really hot - to the point of thermal shutdowns if left unattended for a long period of time. I don't know if that's relevant. the mouse ...
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2answers
560 views

Kubuntu 13.04 Live USB works, graphics crash when installed

I'm trying to install Kubuntu 13.04 on my laptop from a live USB. The live USB works fine, graphics, wireless etc. It all works. Installation works as well, but when I try to start the newly installed ...
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2answers
6k views

Why is my screen flickering while watching some flash videos?

I'm having an issue where on many flash videos (AMCTV's sites videos allow me to reproduce this consistantly) flicker. The bottom half of my laptop or vga monitor's screen will flash white or turn ...
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1answer
709 views

Screen flickers with Nvidia GPU

When I install the Nvidia driver (have tried both current and post-release current) the monitor flickers every time I open a new window/program such as Firefox. I don't know what else I'm going to do? ...
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3answers
4k views

Google Chrome “Flickering”

I am having a problem with Google Chrome on Ubuntu 12.10 64. On about 20-30% of web sites the page comes up and starts "flickering". It seems like there is a different or partial rendering of the ...
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4answers
13k views

Fixing the Nvidia Graphics Screen Flicker Issue

I know there are a lot of questions about this -- I've read at least 100 questions about it but still can't find a solution to the Nvidia screen flicker issue. I've had this issue since 11.10. The ...
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0answers
779 views

System is responding too slow after installing Nvidia drivers in Ubuntu12.10

My monitor was flickering after booting Ubuntu 12.10. The problem was increasing if I start moving my mouse and when it is kept idle, the flickering used to stop. My system has an AMD 32 bit ...
2
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1answer
694 views

Flickering monitor connected by VGA to new System76

Setup: New System76 Lemur laptop running Ubuntu Unity 12.10 is connected via VGA cable to a new dell Ultrasharp u2312hm 23-inch monitor. Symptom: The Dell monitor has an annoying flicker, like ...
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65 views

Need help Video card issue

how can i fix the problem with the image? If you look at the top-left of: Text and some images starts flickering. I have 2 Nvidia GTX460. Drivers are "unknown" according to "About this ...
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3answers
2k views

Flickering on youtube

All the videos on youtube are flickering on my Ubuntu. See screenshot: http://imgur.com/51dAk This happens with HTML5 enabled and disabled. I am running Ubuntu 12.10 on a Thinkpad X61s. This only ...
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1answer
1k views

Mouse Flickering/Disappearing

When I move my mouse around in Ubuntu 12.10 it flickers. When it's not moving it disappears. Any ideas? Info Macbook Pro 7.1 Nvidia 320m Ubuntu 12.10
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0answers
447 views

Screen flicker on mouse scroll

When i log in, everything works well for 5 minutes, then there is blank screen for 2 sec and again the display comes on the monitor but after that, the screen starts flickering on mouse scroll and the ...
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4answers
10k views

cursor jumps when moving (and some other times)

i updated to 12.10 beta 1 when it was released (coming from 12.04 fresh install, i skipped the alpha releases of 12.10) since then i've done all the usual updates but ive had an issue with my cursor ...