Ubuntu
linux package

  1. Cosmic (18.10)
  2. Bug #1783964
  3. Comment #0

Comment 0 for bug 1783964

Revision history for this message
RussianNeuroMancer (russianneuromancer) wrote : Please make CONFIG_PWM_LPSS_PCI and CONFIG_PWM_LPSS_PLATFORM built in to make brightness adjustment working on various BayTrail-based devices

Hello!

Building kernel with following option should make brightness adjustment working on various Intel BayTrail-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.