Tried both nvidia-driver-390 and nvidia-driver-396 (from graphics- drivers PPA). Neither allow backlight to change upon reboot.
Not sure if this matters, but also tried switching to Intel with prime- select, and after reboot still no luck. -- 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/1784878 Title: Backlight Not Functional - Origin EVO 15-S (Clevo) Status in linux package in Ubuntu: Confirmed Bug description: Backlight slider moves, and values updated in /sys/class/backlight/intel_backlight/actual_brightness however, backlight does not actually change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight attaching results of the procedure. Link to laptop in question: https://www.originpc.com/gaming/laptops/evo15-s/ I believe Origin uses Clevo laptops. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-29-generic 4.15.0-29.31 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0c: dan 2150 F...m pulseaudio /dev/snd/pcmC0D0p: dan 2150 F...m pulseaudio /dev/snd/controlC0: dan 2150 F.... pulseaudio /dev/snd/controlC1: dan 2150 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Aug 1 10:26:58 2018 InstallationDate: Installed on 2018-07-30 (1 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: Notebook P95_HR ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic root=UUID=a800497f-73b5-4cd0-8555-3b66c8a3248a ro quiet splash nouveau.runpm=0 vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-29-generic N/A linux-backports-modules-4.15.0-29-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/14/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.05.03 dmi.board.asset.tag: Tag 12345 dmi.board.name: P95_HR dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.03:bd07/14/2017:svnNotebook:pnP95_HR:pvrNotApplicable:rvnNotebook:rnP95_HR:rvrNotApplicable:cvnNotebook:ct10:cvrN/A: dmi.product.family: Not Applicable dmi.product.name: P95_HR dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1784878/+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
