ACK: [PATCH 0/2][SRU Xenial] Backlight malfunction after S3

[Tim Gardner]

On 09/21/2016 12:37 AM, AceLan Kao wrote:
> BugLink: http://bugs.launchpad.net/bugs/1625932
> 
> Impact:
> On some Intel machines, after S3, the backlight becomes malfunction.
> Some machines can't change backlight anymore, and some can't adjust the
> brightness level more than 50%.
> 
> Fix:
> After checking the intel regs, we found some regs value changed after S3.
> So we added a checking to see if it uses alternate pwm increment, and
> write back the correct value while enabling the backlight.
> 
> Tested:
> The patch is tested on new Dell machines.
> BTW, it also fixes the MacBook's backlight issue after S3, too.
> 
> Jani Nikula (1):
>   UBUNTU: SAUCE: i915_bpo: drm/i915/backlight: setup and cache pwm
>     alternate increment value
> 
> Shawn Lee (1):
>   UBUNTU: SAUCE: i915_bpo: drm/i915/backlight: setup backlight pwm
>     alternate increment on backlight enable
> 
>  ubuntu/i915/intel_drv.h   |  1 +
>  ubuntu/i915/intel_panel.c | 32 ++++++++++++++++++++++++++++----
>  2 files changed, 29 insertions(+), 4 deletions(-)
> 

Are you planning a backport for Yakkety ?

-- 
Tim Gardner tim.gardner at canonical.com