I got it figured out and the kernel at
https://people.canonical.com/~acelan/bugs/lp1861521/ did not fix the
issue.

On Fri, Mar 6, 2020 at 7:48 PM Jared Young <email address hidden> wrote:

> I installed from the .deb files and this did not make a difference for the
> backlight, however the volume keys on the keyboard no longer work.
>
> I am not experienced in testing different kernels so it is possible that I
> messed up the install. I did not apply the .patch files.
>
>
> On Tue, Mar 3, 2020 at 11:50 PM Kai-Heng Feng <email address hidden>
> wrote:
>
>> Can you please test kernel here:
>> https://people.canonical.com/~acelan/bugs/lp1861521/
>>
>> --
>> 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
>>
>