Surak, thank you for performing the requested test. Given that Bugzilla
is legacy, it would be best to engage the upstream developers via the
appropriate mailing list. Could you please report this problem through
the appropriate channel by following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel (would send to linux-acpi)?
Please provide a direct URL to your e-mail to the mailing list once you
have made it so that it may be tracked.
Thank you for your understanding.
** Tags removed: kernel-bug-exists-upstream-v3.13-rc6-trusty
** Tags added: kernel-bug-exists-upstream-v3.13-rc6
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
** Changed in: linux (Ubuntu)
Importance: Medium => Low
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https://bugs.launchpad.net/bugs/1218547
Title:
8086:0416 [Clevo W350ST] brightness keys don't work on Kubuntu
Status in The Linux Kernel:
Unknown
Status in “linux” package in Ubuntu:
Triaged
Bug description:
The Fn+F8 and Fn+F9 keys are not working on my Clevo W350ST with
Kubuntu Raring to change screen brightness of the internal laptop
screen. I installed linux-headers-3.11.0-4, linux-
headers-3.11.0-4-generic, linux-image-3.11.0-4-generic and linux-
image-extra-3.11.0-4-generic from Saucy packages repository but the
problem persists. Edit: Bug persists with v3.13-rc6-trusty.
When trying the following event codes appear correctly:
xev | sed -n 's/^.*state \([0-9].*\), keycode *\([0-9]\+\) *\(.*\),
.*$/keycode \2 = \3, state = \1/p'
keycode 36 = (keysym 0xff0d, Return), state = 0x10
keycode 232 = (keysym 0x1008ff03, XF86MonBrightnessDown), state = 0x10
keycode 233 = (keysym 0x1008ff02, XF86MonBrightnessUp), state = 0x10
And changing:
/sys/class/backlight/intel_backlight/brightness
changes the brightness of the screen, but pressing the key combination does
not. I believe this happens because the key combination is, in fact, changing
the value of:
/sys/class/backlight/acpi_video0/brightness
I have in my package sources:
http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu
http://ppa.launchpad.net/bumblebee/stable/ubuntu
WORKAROUND: acpi_backlight=vendor
(but this brakes autoswitch to external monitor when connecting one to VGA
port)
---
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: silvio 2689 F.... pulseaudio
/dev/snd/pcmC1D0p: silvio 2689 F...m pulseaudio
/dev/snd/controlC0: silvio 2689 F.... pulseaudio
DistroRelease: Ubuntu 13.04
HibernationDevice: RESUME=UUID=58f7acf2-4914-4b11-a2ac-e641cb4b39fd
InstallationDate: Installed on 2013-08-18 (57 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Notebook W350STQ/W370ST
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-9-generic
root=UUID=f0bca002-701a-49bb-befc-7343bac2e245 ro locale=pt_BR quiet splash
vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-9.16-generic 3.11.2
RelatedPackageVersions:
linux-restricted-modules-3.11.0-9-generic N/A
linux-backports-modules-3.11.0-9-generic N/A
linux-firmware 1.106
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: raring
Uname: Linux 3.11.0-9-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo vboxusers
dmi.bios.date: 04/11/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W350STQ/W370ST
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd04/11/2013:svnNotebook:pnW350STQ/W370ST:pvrNotApplicable:rvnNotebook:rnW350STQ/W370ST:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
dmi.product.name: W350STQ/W370ST
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
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