** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Also affects: linux (Ubuntu Cosmic)
Importance: Medium
Status: Triaged
** Tags added: cosmic kernel-da-key
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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:
Triaged
Status in linux source package in Cosmic:
Triaged
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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