Nothing changes with any of the boot parameters you asked me to try, separately.
I tried thoses parameters only with the current stable ubuntu kernel (3.11.0-15-generic). I also tried, separately, to set i915.modeset=1 with no more luck. The current boot parameters are these one : quiet i915.lvds_channel_mode=2 i915.modeset=0 i915.lvds_use_ssc=0 splash acpi_osi= BTW, I use nvidia binary Xorg driver (nvidia-319-updates). My only workaround to date is to boot with the old kernel (3.8.0-22.23), put the laptop in sleep mode once, wake it up and then I got backlight control working. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1190341 Title: [MacBookPro10,1] Backlight stopped working after update of linux-image with nvidia 313.30 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1190341/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
