[Bug 596838] [NEW] After upgrading from Karmic to Lucid, system locks up when closing laptop lid on Dell Studio 1555

[AleksanderAdamowski]

Public bug reported:

I'm using Kubuntu, recently upgraded from Karmic to Lucid. In Karmic, I
have configured it to perform no action when closing the laptop lid.

After the upgrade to Lucid, the system started locking up completely
when closing the lid - the freeze is different from these reported in
bug #549983, bug #480037 and bug #574848, because in my case the screen
doesn't change at all (the other bugs report that the screen goes
black).

Contraty to those reports, on my laptop the content that's present on
screen at the moment of lid being closed, remains there unchanged.

However, the system freezes completely and stops reacting to any input.

Even magic SysRq combinations (like Alt-SysRq-S, Alt-SysRq-E, Alt-
SysRq-K, Alt-SysRq-U, Alt-SysRq-B) remain without any effect and the
only possible action is pressing and holding the power button to force
power off.

After rebooting, no traces of the problem remain in any logs - the logs
end abruptly shortly before the moment the lid has been closed.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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After upgrading from Karmic to Lucid, system locks up when closing laptop lid on Dell Studio 1555
https://bugs.launchpad.net/bugs/596838
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