In the meantime I changed laptop again (to an Acer Travelmate 2428wxci), it works perfectly fine; I haven't been able to test the others lately, but they seemed fixed for me around dapper...
-- laptop sudden poweroff / failure https://launchpad.net/bugs/19241 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
