[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1618952
Title:
Display brightness keys not registered by ~$acpi_listen
Status in linux package in Ubuntu:
Expired
Bug description:
Brightness keys donot repond, Brightness controls on
xfce4_power_manager behave as expected. Either kernel is not
recognizing the fn+f5/f6 commands or their is a problem with my
configuration.
here is the event output of all of my fn+(f keys):
~ $ acpi_listen
button/volumeup VOLUP 00000080 00000000 K
button/volumedown VOLDN 00000080 00000000 K
button/mute MUTE 00000080 00000000 K
button/mute MUTE 00000080 00000000 K
PNP0C14:00 000000ff 00000000
PNP0C14:00 000000ff 00000000
PNP0C14:00 000000ff 00000000
button/sleep SBTN 00000080 00000000
button/sleep PNP0C0E:00 00000080 00000001
(As a side note, my bios has no configuration options for the function
keys.)
(On another note, it is worth noting the fn+f2 does not respond with
an event calling for airplane mode either, which is not important to
me but may be important for others, if this is fixed by any solution
here I will make note, though airplane mode may be a feature request
and not a bug.)
I have tried several options in the etc/default/grub file, these include:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video.use_native_backlight=1"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video.use_native_backlight=0"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=intel_backlight"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"
I am using Mint XFCE Sarah (Ubuntu Xenial) 64-bit, xfce4_power_manager was
tested with all above configurations to both handle and not handle display
brightness keys. My Computer is an ASUS model is X540LA. I am attaching a few
files to help with this bug report.
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ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: XFCE
DistroRelease: Linux 18
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-06-10 (92 days ago)
InstallationMedia: Linux Mint 17.2 "Rafaela" - Release amd64 20150723
Package: linux (not installed)
Tags: sarah
Uname: Linux 4.8.0-040800rc3-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
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