[Bug 249326] [NEW] Laptop freezes with no messages at all

[hal]

Public bug reported:

Hi, I have Dell Latitude C400 with intel Wireless 2915ABG which works just fine with 7.10. After an upgrade to 8.04 it started hanging on a regular basis. After several kernel updates these freezes mostly stopped. I thought they have stopped, but I found a place in my home with a little bit worse wifi reception (but not bad at all) where it still hangs even when just left there no user interaction at all. There is nothing in the logs after the freeze. I also figured out that when using network manager to switch between several wireless networks it freezes the same way very often. I guess the problem has something to do with the wifi driver.
Here is the output of lspci, dmesg and lsmod (all in dmesg.log).

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

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Laptop freezes with no messages at all
https://bugs.launchpad.net/bugs/249326
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