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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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 ...
5
votes
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 ...
4
votes
1answer
209 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) ...
3
votes
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 ...
3
votes
0answers
477 views

13.04 flickering mouse pointer

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 ...
3
votes
1answer
855 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 ...
2
votes
1answer
524 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 ...
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 ...
2
votes
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 ...
2
votes
1answer
2k 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 ...
2
votes
1answer
365 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 ...
2
votes
1answer
214 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 ...
2
votes
1answer
575 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
2
votes
0answers
284 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 ...
2
votes
1answer
206 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
362 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 ...
1
vote
2answers
470 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 ...
1
vote
2answers
6k 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
45 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, ...
1
vote
0answers
35 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? ...
1
vote
0answers
626 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
211 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 ...
1
vote
1answer
502 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? ...
1
vote
0answers
688 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 ...
1
vote
0answers
59 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 ...
1
vote
0answers
211 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??
1
vote
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 ...
1
vote
1answer
897 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 ...
1
vote
0answers
461 views

Why does my screen flicker whenever I'm in a 3D program? [closed]

I just built a new computer and installed 11.04 on it. All was perfect for a few days, then this morning, SuperTuxCart and Minecraft (both 3d and the only 3d programs on this machine, coincidence?) ...
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 ...
0
votes
1answer
400 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
328 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
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
votes
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 ...
0
votes
2answers
386 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 ...
0
votes
1answer
600 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 ...
0
votes
1answer
32 views

Why do desktop / monitor screens fail after staying logged in overnight?

I am currently running Ubuntu 13.10. I experienced this same issue with Ubuntu 12.04, so I dont believe the following issue is tied to a specific release. I am using Ubuntu for work, by choice. Id ...
0
votes
1answer
50 views

Screen problem in Ubuntu 12.04 LTS

Since yesterday I am facing some problems with my Laptop screen with Ubuntu 12.04 LTS, sometimes it works well but sometimes it keeps flickering and I see small squares everywhere on my screen. The ...
0
votes
0answers
123 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 ...
0
votes
0answers
40 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 ...
0
votes
0answers
75 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. ...
0
votes
0answers
105 views

wine 1.4 regedit makes screen flicker on 12.04 with dual monitor setup

I have a dualmonitor setup running dual 23" on 1920x1080 which has the following problem: When running any wine application (for example "wine regedit" from console) the screen flickers and the ...
0
votes
0answers
43 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
0
votes
0answers
27 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 ...
0
votes
0answers
169 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 ...
0
votes
0answers
125 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 ...
0
votes
0answers
71 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 ...
0
votes
1answer
139 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
0answers
125 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 ...
0
votes
0answers
275 views

Black flickering screen on ubuntu installation/boot on ATI Radeon HD 7650M (dual booting with win8 on vaio sve15129 cn )

I have a Sony Vaio sve15129cn running windows 8 which comes with an AMD Radeon™ HD 7650M graphics chip. I want to dual boot ubuntu with win 8 using a separate partition. I have installed latest ati ...