Hi! No, updating the BIOS didn't change anything at all. $ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date V1.30 08/13/2012
I tried both with the raring kernel (3.8.0-33-generic ) on my Precise system, and with a Trusty daily live CD, with the same results as usual. Summary: * The brightness keys make the brightness window pop up, but the brightness isn't changed at all. * Comment #22 from ag200spr does apply to me. So it is possible to change the brightness by e.g. # echo 123 > /sys/class/backlight/intel_backlight/brightness * If I boot with `acpi_osi=Linux` in the kernel command line, I can change the brightness, but the brightness window doesn't pop up. So fixing the problem should be easy, if some upstream developer was actually interested in this. Thanks, Alkis ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged -- 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/linux/+bug/853244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs