I am on a Gateway NV78 and have gotten both Linux Mint 11 and 12 to boot flawlessly using this thread. Here is what I did.
Enter i915.broken=1 into command line to make install. Post #42: Based on the info available here and how to set up a script to run during the startup process and the resume process (from suspend/hiberate modes), here it goes a work around for this bug: 1) create a script under /etc/init.d by the following command: sudo gedit /etc/init.d/fix_backlight With the content above: #! /bin/sh echo "Fixing backlight for Gateway NV78" setpci -s 00:02.0 F4.B=00 exit 0 2) And then include that script path (/etc/init.d/fix_backlight) into /etc/rc.local (before the last command: exit 0) 3) create a script under /etc/pm/sleep.d/ by the following command: sudo gedit /etc/pm/sleep.d/10_fix_backlight With the content above: #!/bin/sh # Fix Gateway NV78 backlight PATH=/sbin:/usr/sbin:/bin:/usr/bin if [ ! -x /etc/init.d/fix_backlight ]; then exit 0 fi /etc/init.d/fix_backlight 4) Make sure to make the created scripts executable: sudo chmod 755 /etc/init.d/fix_backlight; sudo chmod 755 /etc/pm/sleep.d/10_fix_backlight; 5) Add "acpi_osi=Linux" to the default grub start up script: sudo gedit /etc/default/grub Add "acpi_osi=Linux" after quiet splash Then sudo update-grub YMMV You may have to add the respective backlight kernel. https://launchpad.net/~kamalmostafa/+archive/inverted-backlight --Gnome3 https://launchpad.net/~kamalmostafa/+archive/linux-kamal-mjgbacklight --Gnome2 >From experience I have had to use the backlight kernels above. Coming out of suspend mode the backlight keys would be inactive. This fixed it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/765438 Title: On startup, the backlight is off on laptop To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/765438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
