I can confirm this bug with 2.6.20-6-generic on a Sony Vaio PCG-FXA53 (older laptop).
I also think that this bug is causing hald to use ~40% of my cpu constantly (not exactly great for battery life). -- feisty:dmesg flooded with sonypi messages https://launchpad.net/bugs/75349 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs