Screen flickering in Ubuntu 12.04 LTS

Question

for those of you who can help me..I recently installed ubuntu 12.04 lts and i got this screen flickering at the log on screen...i googled this problem and i found out that laptops with nvidia graphics have it...but i have intel hd graphics in mine...i tried "nomodeset" and it was solved but my screen resolution changed to 1024x768 and i couldn't change it to 1366x768...so im using ubuntu 11.10 for now...what should i do??

For those who can help me..i'm a newbie at ubuntu and i know nothing..so please detail your answer....

Anyone??

Answer 1

I seem to have eliminated my flicker by following this advice:

1. From a terminal, do a unity --reset.
2. Restart the machine.

I had issue on first reboot, but after second, no flicker, trackpad OK!

Answer 2

I had lots of similar problems on a fresh install of 12.04 from the Live CD. The Live CD was working fine, but not the installed system.

Flicker/pixelation on the login screen. After login, eihter the same, making windows unreadable, or nothing but a clean background (no menus, no launcher, nothing).

unity --reset and several reboots didn't help.

That was an install of Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425).

A fresh install of the latest version (Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)), works fine now.

Answer 3

I had same problem. There are two solutions:

1. Login into recovery mode, then the screen flickering stops. But everytime you have to do the same.
2. I upgraded to 12.10. And you can download the drivers by "settings" and search for the drivers availability for your device and then install it.

Answer 4

I too had the same Problem I had to reinstall the Proprietary drivers for it then it got set right