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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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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0answers
12 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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0answers
115 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
71 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
3k 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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3answers
1k 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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2answers
536 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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1answer
53 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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0answers
31 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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4answers
8k 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 ...
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0answers
58 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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2answers
315 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: ...
3
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1answer
531 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 ...
0
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1answer
109 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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0answers
399 views

Permanently disabling screen blinking Dell Vostro 3350

I've an old issue described here, to keep it short, after few seconds to one minute after boot screen starts flickering - windows and other elements rapidly turn white and go normal again. Problem ...
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0answers
675 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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0answers
114 views

How to resolve screen flickering in Ubuntu 12.04 LTS?

I have been using Windows XP Professional for a long time. Recently I switched to Ubuntu 12.04 LTS. I have installed Ubuntu alongside Windows XP Pro, but the problem is that whenever I start Ubuntu, ...
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0answers
1k views

Booting screen flicker after clean install of 12.10 on Dell Inspiron 1525

I just installed Ubuntu 12.10 on my Dell inspiron 1525 which was previously running on windows 7. During booting, immediately after the purple screen, my screen flickers like crazy (kind of switching ...
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2answers
8k 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
204 views

Google Earth display problems - no imagery and flickering

Google Earth installed fine and loads up OK but it never shows me any background imagery. Also the top of the display flickers intermittently even when nothing is moving. See screenshots below. I ...
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0answers
61 views

Screen flickers every few seconds in Ubuntu 12.10

I recently got a nice big monitor for my computer running Ubuntu 12.10 & when I changed over from the old screen it started flickering very few seconds - anyone know why & what I can do to ...
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0answers
95 views

Compiz and Intel g33/g31 flickering screen

I have installed Ubuntu 10.04 on a PC Celeron dual core 2.5 GHz, and 2 GB of RAM. The integrated video is 82G33/G31, and I have problems with flickering screen when playing videos with Compiz enabled. ...
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0answers
51 views

ubuntu 12.04 login screen flickering

I have ubuntu 12.04 LTS installed on dell C2Duo machine. Its login screen is flickering randomly. Can any one help me What's the mess this is? Thanks
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0answers
31 views

Screen flickering after forced termination

After a forced termination of Ubuntu (battery on laptop died while on suspend mode) the screen seems to flicker a little bit. It is not a very intense flicker, more like a rectangular of 3 fingers ...
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0answers
174 views

black flickering lines showing on the screen after booting ubuntu 12.04.3 in my vaio sve15136cn (dual boot with win8) amd radeon 7500M

I have a Sony vaio running on dual boot with windows 8 x64 recently updated to 8.1 and Ubuntu 12.04.3 x64 by disabling secure boot but uefi is enabled. I have repaired the boot and now i can select ...
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0answers
40 views

Video Flickering with Kazam

i'm using ubuntu for first time since yesterday, i recorded a video with kazam, all was smooth and perfect in live performance, but recorded video have some flickers, ¿this is because a faulty driver? ...
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1answer
147 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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0answers
161 views

Windows flickering on Dell N5100 (Inspiron 15R), ^@ on terminal

I have ubuntu 12.04 on my Dell N5100 (Inspiron 15R). Some time after booting up, windows and menus start flickering randomly. I thought it was a graphics card issue until I went to a virtual terminal ...
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0answers
76 views

Software center not working flickering window

Im using Ubuntu 13.04 and recently my Software Center every time I open it, the window start flickering and getting bigger and I have to close it by typing alt+f4. Is there a way to fix this? thanks ...
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0answers
132 views

Ubuntu 12.04 screen brightness flickering after software update

I have a Dell latitude E6410 laptop with Ubuntu 12.04. After installing few software updates last friday, my screen started flickering the brightness. It has a nvidia graphics card in it. If someone ...
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0answers
217 views

13.04 Video & Flash player flickering using Gnome Shell

Setup Ubuntu 13.04 x64 Graphics card: ATI HD 7850 Graphics Drivers: I have the proprietary drivers CPU: i7 2600k Ram: 8GB Problems Firefox: HTML5 and CSS3 stuff sometimes behaving strange/sloppy ...
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2answers
488 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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1answer
563 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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4answers
7k views

GNOME Shell flickering with ATI proprietary drivers

Works fine with opensource drivers, but with catalyst flickers everytime you press on activities or the lower right bar. I have 01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon ...
2
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1answer
747 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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1answer
485 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
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1answer
225 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 ...
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2answers
2k views

HP EliteBook 8440p screen flickers after blank screen (nvidia)

When my screen turns blank after 10 min or after locking the screen and I begin using the laptop again, the screen is flickering. It looks as if every second line of pixels is blinking and the ...
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0answers
709 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
558 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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0answers
61 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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0answers
224 views

Screen Ficker after installing Ubuntu 12.04 on a Dell T7600

I have a Dell T7600 with a Q5000, V2 graphics card. When I installed Ubuntu 12.04 the screen begins to flicker every few seconds. Any suggestions??
2
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0answers
321 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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1answer
439 views

Screen flickering / scrambling on an Asus UL30A

Recently my Laptop screen started to flicker. You can view the phenomena here: YouTube Sometimes the screen is totally scrambled, but most of the time it starts with the Title bar only. It happens ...
5
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2answers
4k views

Brightness problem on a Samsung 530U3B

I am using Ubuntu 12.04 on a Samsung 530U3B laptop. Screen blinks on adjusting the brightness and CPU load grow up to 100%. Video device: Intel(R) Extreme Graphics 3 Controller. Seems like it ...
0
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0answers
6k views

Black screen on boot [duplicate]

Possible Duplicate: My computer boots to a black screen, what options do I have to fix it? I've just installed Ubuntu and i can't access the desktop because the screen sometimes flickers ...
2
votes
1answer
3k views

Screen brightness flickering on a Samsung laptop

I have just installed Ubuntu 12.04 via the wubi installer. I have Windows 7 installed as my main os. Now when i turn on my computer and go into Ubuntu my screen brightness is on max. When i then turn ...
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2answers
1k views

Screen flickers on a Lenovo y460 laptop

I have a lenovo y460 laptop with hybrid graphics. it's a nvidia optimus card and a integrated intel graphics. I'm only using the integrated chip and i don't want use the nvidia card the problem ...
0
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1answer
385 views

Ubuntu Display repeats itself

I blew away Windows XP using the Ubuntu disk today on my Dell Inspiron 1100. After Linux installed and I rebooted, the display of Ubuntu seems to repeat itself. So I have two login screens, and each ...
2
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2answers
5k views

Screen, windows, and menus are flickering horribly

I just installed 11.04 (with updates/ubuntu extras installed). I am using a Dell Dimension 3000, and it is apparently not capable of running Unity. There was no flickering during the install, but ...