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[ubuntu] Screen flicker on virtual console Acer Aspire 4520

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http://ubuntuforums.org – Hi! I have just installed Ubuntu 9.04 Jaunty on my Acer Aspire 4520: Quote: Acer Aspire 4520 Nvidia nForce 610m/GeForce 7000m 2GB RAM 160GB HDD (only 12GB + 4GB swap for Ubuntu) After installation, I installed all updates and also the Nvidia proprietary drivers 180.x My problem is, when I switch to a virtual console (Ctrl-Alt-F1), the screen goes blank and flickers with white around the edges, and some thin black horizontal stripes. The same thing also happens during shutdown, I can't see the shutdown splash screen. When I go back to the X virtual console (Ctrl-Alt-F7), everything goes back to normal. Here is my guess: This seems to be a framebuffer problem. Or maybe because Ubuntu doesn't know how to render text-only consoles now that the Nvidia drivers are loaded. I don't know. What could be wrong? How can this be fixed? Thanks in advance! (Hardware)