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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7
votes
4answers
10k 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
276 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
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 ...
0
votes
1answer
311 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
552 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
510 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 ...
0
votes
1answer
529 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
689 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
0answers
519 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?) ...
0
votes
2answers
435 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 ...
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
367 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
482 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
636 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
243 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
227 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) ...