acpi events not fired correctly

[Dark Dragon]

On my Lenovo ThinkPad Twist (S230u) there is a screen rotate button (ibm/hotkey 0x6020).

acpi_listen recognizes this event, dmesg also recognized it, but as "unknown" and /etc/acpi/events never get fired.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-13-generic 3.11.0-13.20
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mschnirring 2411 F.... pulseaudio
Date: Sun Nov 10 17:18:49 2013
InstallationDate: Installed on 2013-10-21 (19 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: LENOVO N3C29UK
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic.efi.signed root=UUID=57ca7e87-7c13-41ee-8f89-13f9e3fa6aa8 ro quiet splash "acpi_osi=!Windows 2012" vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.11.0-13-generic N/A
 linux-backports-modules-3.11.0-13-generic N/A
 linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/20/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: GDET90WW (1.50 )
dmi.board.asset.tag: Not Available
dmi.board.name: N3C29UK
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGDET90WW(1.50):bd12/20/2012:svnLENOVO:pnN3C29UK:pvrThinkPadTwist:rvnLENOVO:rnN3C29UK:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: N3C29UK
dmi.product.version: ThinkPad Twist
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.12 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-trusty/

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Dark Dragon (darkdragon-001)]

After some updates, it now works.

Probably it was the grub option to turn acpi on correctly.