The upstream bug https://bugs.freedesktop.org/show_bug.cgi?id=97486
And the issue could be fixed by the following 2 commits in drm-intel- next-queued. commit 32b421e79e6b546da1d469f1229403ac9142d695 Author: Jani Nikula <[email protected]> Date: Mon Sep 19 13:35:25 2016 +0300 drm/i915/backlight: setup and cache pwm alternate increment value and commit e29aff05f239f8dd24e9ee7816fd96726e20105a Author: Shawn Lee <[email protected]> Date: Mon Sep 19 13:35:26 2016 +0300 drm/i915/backlight: setup backlight pwm alternate increment on backlight enable -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1625932 Title: Backlight does not change when adjust it higher than 50% after S3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1625932/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
