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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1answer
153 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
301 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
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vote
1answer
236 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
355 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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vote
1answer
293 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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vote
1answer
280 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
745 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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votes
1answer
49 views

Ubuntu Flickering windows

I recently installed nautilus 3.1.12 following this website and it have left me flickering windows. All my browser, ide, options are flickering and it seems like the ui is basic one not gnome. How to ...
0
votes
1answer
313 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
422 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
346 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
185 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
315 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
538 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 ...
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votes
0answers
2k 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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votes
0answers
478 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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vote
0answers
58 views

Screen Flicker in Ubuntu

My Ubuntu PC's screen flickers every time I boot up. Sometimes, when it stops, it starts again when I move my mouse. My laptop has its own graphics card. Nvidia Geforce 8200m G.
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vote
0answers
234 views

Ubuntu 14.04 flickering screen on high resolution

I have a Dell Inspiron 15 7000 7548 with Windows 8.1 and Ubuntu 14.04 dual boot. It has a built-in 4k display with Intel HD Graphics 5500(Broadwell GT2) graphics. Everything runs as normal on Windows, ...
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vote
0answers
20 views

Unity Dash Flickers Instead of Opening

When I hit the meta key or click on the dash button, the dash will open very, very briefly and then immediately close. It is so quick I cannot read anything in the dash, let alone click anything. ...
1
vote
0answers
607 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
121 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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vote
0answers
484 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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0answers
1k 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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vote
0answers
811 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 ...
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0answers
12 views

My screen gets brighter when I close applications and darker when I open them?

It almost looks like a flicker. I'm using Ubuntu 14.04 on a computer with the latest proprietary nvidia drivers. Also it happens on all applications.
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0answers
25 views

The flickering in unity launcher search box

Whenever I try to write something in the search box on the Unity launcher, the screen flickers and the search process slows down a bit. Do I need to install additional softwares for my old graphics ...
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votes
0answers
36 views

Screen flickering on my Toshiba PRO Satellite P505D-S8935

I have a Toshiba PRO Satellite P505D-S8935 running the recent 14.04.2 LTS release and the screen flickers on and off rapidly. but everything works fine but it flickers all the time. I did some ...
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votes
0answers
19 views

Screen flickers while booting and mouse invisible

I am new to Ubuntu, and I just installed it on my machine, a few days later, the screen now flickers (when the computer is starting up), and now the cursor is gone. I have searched for solutions ...
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votes
0answers
144 views

Ubuntu 15.04 intermittent screen freezing

I have updated from Ubuntu 14.10 to Ubuntu 15.04 and I am having intermittent screen cuts or screen flickers every 8 seconds approximately. Each flicker is very short, less than a second (maybe half a ...
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votes
0answers
528 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
72 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
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0answers
157 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
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0answers
328 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
131 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
313 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
256 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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0answers
170 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
21 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
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 ...