Hello guys,

I'm kind of new regarding kernel patching. I've Asus T102HA and saw some
other blogs about how to control the backlight brightness. I tried to
message to people and asked for help but I got no response. Would you
guys help me how to fix the backlight brightness step by step?
Currently, I tried to install linux mint 19 mate edition and
Crunchbangplusplus versions. Both are working but couldn't set the
brightness to lower setting.

Thank you.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1783964

Title:
  Please make CONFIG_PWM_LPSS_PCI and CONFIG_PWM_LPSS_PLATFORM built in
  to make brightness adjustment working on various BayTrail/CherryTrail-
  based devices

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Cosmic:
  Fix Released

Bug description:
  Hello!

  Building kernel with following option should make brightness
  adjustment working on various Intel BayTrail and CherryTrail-based
  devices such as HP Stream 7 Tablet, Microsoft Surface 3, and quite a
  few tablets from ASUS, and many no-name Chinese companies.

  CONFIG_PWM_LPSS=y
  CONFIG_PWM_LPSS_PCI=y
  CONFIG_PWM_LPSS_PLATFORM=y

  I tested this change on HP Stream 7, by installing Linux 4.18rc6 from
  http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18-rc6/ and then
  installing same kernel, but with built in CONFIG_PWM_LPSS modules
  listed above.

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