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[Stuart Young <cef@xxxxxxxxx>]

Sitsofe: I have not yet tried later kernels, as I'm still running Hardy.
Given the outstanding list of issues I've seen mentioned in the past
around power management issues with Intrepid, I've been loathe to change
my setup and try.

Will re-evaluate and see if I can upgrade now.

-- 
MAC Address change after suspend (atl1e)
https://bugs.launchpad.net/bugs/271744
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Status in Easy Peasy: New
Status in Ubuntu EeePC-optimized Kernel: Triaged
Status in Ubuntu EeePC Kernel Series: 2.6.24: Confirmed

Bug description:
Occasionally after suspend, the MAC address for the wired network card on a Eee 901/1000/1000h changes to something other than the correct MAC address. I've had this behavior confirmed by 2 other independent sources on IRC (#eeepc on FreeNode).

On a network with DHCP, this results in a new IP address being allocated after a suspend. It also results in the interface name changing, and a bunch of bogus entries being left in /etc/udev/rules.d/70-persistent-net.rules storing the varied MAC addresses that seem to be given to the adapter after this suspend bug.

Note: This does not happen always. I've had it happen irregularly. When trying to directly force it to happen, it took at least 5 suspends in the space of 3 minutes to get it to happen.

Applies to the 2.6.24-21-eeepc kernel and I've had an independent confirmation that the same bug exists in 2.6.24-22-eeepc kernel in the array.org hardy-proposed repository.