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I have a Sony Vaio E series laptop. And I recently installed Ubuntu 12.10 on it. It was running all smooth without any problem, till I updated it (as we have to do after any normal installation of Ubuntu). But as I updated the system, it asked me to restart the system (which again is a normal thing), but after reboot, when the ubuntu 12.10 login screen came, it was all flickering. Nothing was properly visible, though I heard the sound, when the login screen come's. Interestingly when I took the mouse to the top of the screen, it was partly visible. Also when I closed the lid the system went to sleep, and after resuming the screen was all Ok again.

But still, can you help with this problem of flickering.

Thank You!

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Thanks for the work around - although not perfect, at least I can log in now! – Giles Smith Apr 29 '13 at 12:01

It's a kernel-related issue of kernel versions >=3.6.10 with your hardware. Please report that the bug affects also you on Launchpad: Launchpad bug 1123024
This will rise the priority of the bug.

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