This is somewhat off topic, but the fix in the description remains useful and is required to enable backlight brightness adjustment for the HP Stream 7 when running Debian 11 (Linux 5.10).
Example steps (to be run in an i386 environment, such as a debootstrap chroot jail): apt install fakeroot devscripts apt build-dep linux apt source linux cd linux-5.10.84/ # Change as needed nano debian/config/kernelarch-x86/config # Make the kernel configuration changes as in the description debuild -b -uc -us # Install linux-image-5.10.0-10-686-unsigned_5.10.84-1_i386.deb -- 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: 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. 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 : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
