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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3
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1answer
463 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 ...
2
votes
1answer
489 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 ...
0
votes
2answers
2k 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 ...
2
votes
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 ...
0
votes
1answer
196 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, ...
3
votes
1answer
735 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 ...
1
vote
2answers
602 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 ...
2
votes
1answer
9k 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 ...
1
vote
1answer
826 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? ...
18
votes
4answers
12k 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 ...
7
votes
5answers
27k 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 ...
1
vote
0answers
856 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
votes
1answer
871 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 high-...
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 computer"...
3
votes
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 ...
2
votes
1answer
2k 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
3
votes
0answers
621 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 ...
7
votes
4answers
13k 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 ...
3
votes
1answer
372 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 ...
5
votes
2answers
5k 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 ...
2
votes
1answer
4k 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 ...
0
votes
1answer
325 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
2answers
3k 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 ...
0
votes
1answer
622 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 ...
0
votes
1answer
595 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 ...
0
votes
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 and ...
0
votes
1answer
554 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 ...
0
votes
2answers
775 views

Annoying Screen Flickers on MSI U120

My screen brightness changes on my MSI U120 when I log in. I can fix this by switching workspaces, and the screen will stay at a constant brightness. Changing the brightness using the function keys ...
1
vote
1answer
1k views

screen flickers after waking from blank screen

Every time I lock my screen and then unlock it again I get a really annoying screen flicker that stays until the next reboot. It's not like a graphic glitch it's like the screen is refreshing at a ...
0
votes
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 ...
1
vote
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 ...
1
vote
2answers
489 views

Kubuntu corrupt screen after lid close/screensaver

I've seen a few other Q&As around this, but nothing that is exactly what I'm experiencing. I have a new Lenovo X220 which I'm running the latest Kubuntu on. If I close the lid when I open it I ...
3
votes
1answer
1k views

Flickering with experimental driver on a Geforce 8200M [duplicate]

I've just installed Natty in a laptop with a non-working back-light, so I have to use an external monitor in order to see anything. The problem is that the two nVidia proprietary drivers available won'...
3
votes
2answers
6k 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 ...
2
votes
1answer
368 views

WUBI boot error [closed]

I installed wubi netbook edition a week back from win xp service pack 2 When I boot into Ubuntu the screen flickers and it reboots. Now I don't have Windows anymore on my notebook asus L3800. It ...
2
votes
1answer
620 views

What exactly is --no-daemon function in Gnome-power-manager

I have problem with monitor flickering and here i found that possible solution is to run gnome-power-manager like this: gnome-power-manager --no-daemon For some people this fixed the issues. I am ...
0
votes
1answer
646 views

Monitor blinking

I have Ubuntu 10.04, my laptop is ASUS k50ij, intel duo t3000, 2gb ram, 320 HDD, intel gma 4500M video card. My problem is that a couple days ago my monitor had start blinking for a few seconds. Then ...
2
votes
1answer
261 views

Windowed SDL apps are all flickering with a SiS graphics card

So when I'm using an SDL app like Wormux, the screen flickers like the app was in fullscreen to the actual desktop with the SDL window. This doesn't occur on my other PCs, which use Intel Extreme 845G ...
4
votes
1answer
252 views

Stopping the menu icon flicker

Every time I click on the application or system menus, I notice that no icons show up for a second, then they page in. Is there some way to explicitly tell Ubuntu to cache this? My SuSE (GNOME) ...