Bug can be confirmed present in 14.04 with standard LTS kernel and 3.15rc2 kernel from ubuntu mainline kernel-ppa, daily build for april 24th (latest marked trusty at the time, now nonexistent, should I try a newer kernel even if marked utopic?)
I tried upgrading to bios version 2.21, but there was only an installer for win 8, and using it removes the ubuntu boot loader. Will post after getting my computer to boot ubuntu again.. (I would not recommend users without good knowledge of how UEFI bootloaders work to try upgrading the bios) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1173725 Title: [Acer Aspire V5-171] Backlight cannot be adjusted unless passing acpi_backlight=vendor To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1173725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
