I had the same issues, but the problem ist gone since I replaced the kernel module for my onboard ethernet controller [lspci: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 08)] e100 (intel driver) by eepro100 (community driver). I'm not sure if this is a solution for everyone, but I realized, that the problems always occured during downloads or other network traffic.
-- spurious keyboard events https://launchpad.net/bugs/63024 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
