Is this what you need? On Mon, Mar 9, 2020 at 7:25 AM Kai-Heng Feng <kai.heng.f...@canonical.com> wrote:
> Please test latest drm-tip kernel with kernel parameter "drm.debug=0xe" > and attach dmesg: > https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/ > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1860303 > > Title: > Backlight brightness cannot be adjusted using keys > > Status in linux package in Ubuntu: > Incomplete > > Bug description: > I cannot adjust the screen brightness using the keyboard keys or > changing /sys/call/backlight/intel_backlight/brightness values. I've > only been able to adjust the backlight using xrandr. > > Followed bug report on > https://wiki.ubuntu.com/Kernel/Debugging/Backlight#Diagnostic_Techniques > and attached files. Additional information: > 1. echo 8 > /sys/class/backlight/intel_backlight/brightness does not > change the screen brightness > 2. video.use_bios_initial_backlight=0 does not enable brightness to be > changed > 3. Cannot login to when using kernel paramater acpi_osi=. Login does not > work and on one boot "y"s were being continuously typed without any keys > being depressed. It was odd. > 4. video.use_native_backlight=1 does not enabel brightness to be changed > 5. Created file /usr/share/X11/xorg.conf.d/80-backlight.conf and it had > no impact > > ProblemType: Bug > DistroRelease: Ubuntu 19.10 > Package: linux-image-5.3.0-26-generic 5.3.0-26.28 > ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13 > Uname: Linux 5.3.0-26-generic x86_64 > ApportVersion: 2.20.11-0ubuntu8.2 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: jaredy 1649 F.... pulseaudio > /dev/snd/pcmC0D0p: jaredy 1649 F...m pulseaudio > CurrentDesktop: ubuntu:GNOME > Date: Sun Jan 19 19:51:45 2020 > InstallationDate: Installed on 2020-01-03 (16 days ago) > InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) > MachineType: HP HP Spectre x360 Convertible 13t-aw100 > ProcEnviron: > TERM=xterm-256color > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=en_US.UTF-8 > SHELL=/bin/bash > ProcFB: 0 i915drmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-26-generic > root=UUID=5f505587-b59b-4abd-b8f2-28c04ab84c64 ro quiet splash > acpi_backlight=vendor vt.handoff=7 > RelatedPackageVersions: > linux-restricted-modules-5.3.0-26-generic N/A > linux-backports-modules-5.3.0-26-generic N/A > linux-firmware 1.183.3 > SourcePackage: linux > UpgradeStatus: No upgrade log present (probably fresh install) > dmi.bios.date: 11/15/2019 > dmi.bios.vendor: AMI > dmi.bios.version: F.10 > dmi.board.asset.tag: Base Board Asset Tag > dmi.board.name: 86FA > dmi.board.vendor: HP > dmi.board.version: 87.43 > dmi.chassis.type: 31 > dmi.chassis.vendor: HP > dmi.chassis.version: Chassis Version > dmi.modalias: > dmi:bvnAMI:bvrF.10:bd11/15/2019:svnHP:pnHPSpectrex360Convertible13t-aw100:pvr:rvnHP:rn86FA:rvr87.43:cvnHP:ct31:cvrChassisVersion: > dmi.product.family: 103C_5335KV HP Spectre > dmi.product.name: HP Spectre x360 Convertible 13t-aw100 > dmi.product.sku: 6YG70AV > dmi.sys.vendor: HP > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860303/+subscriptions > ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/bugs/1860303/+attachment/5336385/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860303 Title: Backlight brightness cannot be adjusted using keys To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860303/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
