I just tried with the Oneiric final CD (kernel 3.0.0-12-generic), and had the exact same problems, i.e.: * with the default boot options the laptop brightness keys made the brightness indicator window show, but the brightness wasn't actually changed, and * with acpi_osi=Linux in the isolinux command line, the brightness keys were indeed modifying the brightness, but the indicator window didn't appear.
** Changed in: linux (Ubuntu) Status: Expired => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/853244 Title: Acer Aspire 5742Z brightness keys not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/853244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs