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."

learn more… | top users | synonyms

1
vote
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 ...
5
votes
1answer
116 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 ...
3
votes
1answer
272 views

Grub menu screen flicker

I am having a strange problem on my Dell Inspiron 1505 laptop. When starting the computer the grub screen flickers or every few seconds. I don't know if it would be called a flicker. The screen ...
2
votes
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
1
vote
1answer
186 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 ...
1
vote
1answer
220 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 ...
1
vote
1answer
193 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 ...
1
vote
1answer
195 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 ...
1
vote
1answer
712 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? ...
0
votes
1answer
156 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 ...
0
votes
1answer
272 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 ...
0
votes
1answer
236 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 ...
0
votes
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 ...
0
votes
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, ...
0
votes
1answer
310 views

White, red and green screen flicker

I updated 12.04 this morning through the update manager (can't remember what it was, but it was only one thing) and everything was fine up until a few minutes ago when my screen changed and began ...
0
votes
1answer
527 views

screen brightness flickering

After installing ubuntu 11.10 screen started flickering between two brightness levels i gues its not hardware issue because everything worked perfectly fine on windows which i have been using before ...
2
votes
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 ...
2
votes
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 ...
1
vote
0answers
490 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 ...
1
vote
0answers
95 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 ...
1
vote
0answers
412 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 ...
1
vote
0answers
980 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 ...
1
vote
0answers
780 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 ...
0
votes
0answers
111 views

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 ...
0
votes
0answers
14 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 ...
0
votes
0answers
52 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 ...
0
votes
0answers
73 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 ...
0
votes
0answers
178 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: ...
0
votes
0answers
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, ...
0
votes
0answers
265 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, ...
0
votes
0answers
191 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. ...
0
votes
0answers
134 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 ...
0
votes
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 ...
0
votes
0answers
315 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 ...
0
votes
0answers
214 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. ...
0
votes
0answers
59 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 ...
0
votes
0answers
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 ...