Ever since I upgraded from 2.6.33.6-147.2.4 to: Linux zeus.lan 2.6.34.4-42.fc13.x86_64 #1 SMP Wed Aug 18 23:17:21 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux my USB connected keyboard has been acting funky and pseudo-randomly eating keypresses (or even entire sequences of keypresses). Seems most likely to happen after a moment or two of idleness.
*** This bug has been marked as a duplicate of bug 625728 ***
*** This bug has been marked as a duplicate of bug 625758 ***