** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1758442
Title:
[HP WMI] Issues with brightness keys [HP ProBook 640 G1]
Status in linux package in Ubuntu:
Invalid
Bug description:
Three of the "function" keys on this laptop don't work at all: "Mute",
"Brightness Down", and "Brightness Up". I believe these keys are
controlled by WMI. Other buttons not controlled by WMI, such as
"Volume Up" and "Volume Down" (both by ACPI), work fine. Setting
display brightness via software (e.g., GUI slider) works fine.
Sometimes other keys (Windows, up/down arrow, pgup/pgdn) are
interpreted as "Brightness Down". This behavior seems to come and go
randomly after each reboot.
I have tried setting (separately) acpi_osi=Linux and
acpi_backlight=vendor without effect.
The hp_wmi driver raises these message at each boot:
[ 19.610528] hp_wmi: query 0xd returned error 0x5
[ 19.610569] input: HP WMI hotkeys as /devices/virtual/input/input14
This system has the latest BIOS (1.43A, released 2018-01-25) and the
latest Intel ME firmware (9.1.42.3002, released 2017-12-19).
No output is generated when pressing these buttons with evtest
(choosing option 8, "HP WMI hotkeys"), xev, or acpi_listen).
I have attached the debugging information requested at
<https://wiki.ubuntu.com/Kernel/Debugging/Backlight#Debugging_information_to_provide_in_your_bug_report>,
although fwts method does not seem to be a valid command (anymore?).
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-12-generic 4.15.0-12.13
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: vectro 1415 F.... pulseaudio
/dev/snd/controlC0: vectro 1415 F.... pulseaudio
CurrentDesktop: KDE
Date: Fri Mar 23 17:15:19 2018
HibernationDevice: RESUME=UUID=0f34a9a4-0160-489a-9325-45913b03eb06
InstallationDate: Installed on 2018-03-23 (0 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64
(20180306.1)
MachineType: Hewlett-Packard HP ProBook 640 G1
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-12-generic
root=/dev/mapper/internal-root ro quiet splash acpi_osi=Linux vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-12-generic N/A
linux-backports-modules-4.15.0-12-generic N/A
linux-firmware 1.173
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/25/2018
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L78 Ver. 01.43
dmi.board.name: 2101
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 16.3C
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvrL78Ver.01.43:bd01/25/2018:svnHewlett-Packard:pnHPProBook640G1:pvrA3009DD10303:rvnHewlett-Packard:rn2101:rvrKBCVersion16.3C:cvnHewlett-Packard:ct10:cvr:
dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=PRO
dmi.product.name: HP ProBook 640 G1
dmi.product.version: A3009DD10303
dmi.sys.vendor: Hewlett-Packard
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