Sorry, I just retested the acpi_backlight=vendor parameter in grub, and with the latest updates its working perfect.. The last time I've tested was in jaunty. This really fixed and works perfect.
I've just updated my /etc/default/grub with that option and the changed line its just like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset i8042.nomux acpi_backlight=vendor" Just to explain: - nomodeset: makes something show up in the screen (fix the videodriver) - i8042.nomux: makes the touchpad button work. - acpi_backlight=vendor: fix the brightness problem. Now just do the update-grub cmd. Remeber that this changes need root privilegies, so "sudo su" or "sudo <cmd>" -- Acer Aspire 5738 cannot change brightness at all https://bugs.launchpad.net/bugs/489041 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs