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I installed Ubuntu 2011.04 from scratch a few hours ago. At first Firefox was working perfectly. Then I selected "Static application switcher" in the Compiz configuration.

From that time, whenever I press ALT-TAB, Firefox's display is frozen. As hinted by the changing mouse cursor, I can click on link and select text, but I can not see it.

If I restart Firefox or simply unmaximize/remaximize it, the problem is gone, until the next ALT-TAB.

What's going wrong? How to go back to the deafult (non Compiz?) application switcher?

Note: I am using the proprietary ATI driver Ubuntu proposed me to install.

Nicolas Raoul
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2 Answers2

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I would have liked to really solve the problem, but meanwhile here is how to avoid the problematic consequence: Select the Compiz "Static application switcher".

Nicolas Raoul
  • 11,603
  • Ya but static application switcher sucks. The system should not crash just because the user wants to use a different option – puk Nov 04 '11 at 22:41
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This is an answer if you didn't check your settings correctly. Static application switcher is a watered down version of application switcher. It is generally more stable than the latter as well. When I switched from static application switcher to the more powerful application switcher I started observing the problems you mentioned: windows became locked until I resized them. The problem went away as soon as I disabled application switcher (which is a shame because it is so cooler).

Word of caution: re-enabling static application switcher made my system totally unresponsive to the point where I had to hold down the power button. Afterwards, however, everything returned to normal, after reboot

puk
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