This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1783964 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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: Incomplete 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1783964/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp