I can confirm this bug! I have the same hardware: ACER Extensa 3000 Notebook with Dapper running. I also played arround with various settings but nothing worked.
This bug is really annoying and makes (K)ubuntu unusable for writing longer documents!!! -- keyboard very unresponsive / often missing keypresses https://launchpad.net/bugs/63147 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
