P.J.Lin, could you please execute the following in a terminal while booted into a default Ubuntu kernel (not a mainline one): apport-collect 1279282
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1279282 Title: There are no LCD backlight brightness function and OSD with Fn hot keys under Ubuntu 13.10. Status in “linux” package in Ubuntu: Confirmed Bug description: Steps to reproduce : #1. Install Ubuntu 13.10 x64 #2. Change OS indication. $ sudo gedit /etc/default/grub Find GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" Change to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_os_name=Linux acpi_osi=" $ sudo update-grub (Reboot) #3.Press hot key Fn+F8 or Fn+F9. More information : Our BIOS engineer had already checked the ACPI ASL code and all the necessary event notifications are normally notified as expected while Fn hot key pressed. Butthis issue is still there. We think there is no Intel graphics driver in Ubuntu 13.10.That's why we need it. There is no problem for all our Shark Bay models with the same ASL event notification under Ubuntu 13.10. --- ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 DistroRelease: Ubuntu 13.10 InstallationDate: Installed on 2014-01-09 (47 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MarkForUpload: True Package: linux (not installed) Tags: saucy Uname: Linux 3.13.3-031303-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1279282/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp