The patch Hendrik posted is for the upstream acerhk driver rather than for ubuntu. Seems that this is a bug in the acerhk package rather than a kernel bug, therefore closing the linux task.
** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/555828 Title: Regression: flag "-pg" on /usr/src/$(uname -r)/Makefile prevents acerhk-source package from compiling, cutting internet access -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs