Public bug reported: following information outlined in https://wiki.ubuntu.com/Hotkeys/Troubleshooting
1) proper ACPI events are being reported by activating the keys video LCD 00000087 00000000 (down) video LCD 00000086 00000000 (up) 2) keys are coming through properly on the "Video Bus" input scan code: 0x00 key code: brightnessdown scan code: 0x00 key code: brightnessup the ui portion showing changes in the brightness is not being shown, further the brightness applet says "Cannot get panel brightness", and dmesg shows [20007.595753] ACPI: Failed to switch the brightness when the brightness keys are pressed (though the panel brightness does change) ProblemType: Bug AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ohsix 1775 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfe938000 irq 27' Mixer name : 'IDT 92HD81B1X5' Components : 'HDA:111d7605,103c308f,00100402' Controls : 14 Simple ctrls : 9 CheckboxSubmission: 12f34cb446e863f8ecab0ad1f83d1e1e CheckboxSystem: 8c3973413f77007d7b111ca3763f5e51 Date: Sun Feb 7 07:40:08 2010 DistroRelease: Ubuntu 9.10 HibernationDevice: RESUME=UUID=c139b366-7f7a-4979-9603-a1070c5ccf1b InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Release i386 (20091028.4) MachineType: Hewlett-Packard Compaq Mini 110c-1100 Package: linux-image-2.6.31-19-generic 2.6.31-19.56 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-19-generic root=UUID=e028a231-762d-4bdd-8985-7834c03adba1 ro noht quiet splash ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-19.56-generic RelatedPackageVersions: linux-backports-modules-2.6.31-19-generic 2.6.31-19.21 linux-firmware 1.26 SourcePackage: linux Tags: ubuntu-unr Uname: Linux 2.6.31-19-generic i686 WifiSyslog: Feb 7 07:37:35 field NetworkManager: <info> (wlan0): supplicant connection state: completed -> group handshake Feb 7 07:37:35 field NetworkManager: <info> (wlan0): supplicant connection state: group handshake -> completed Feb 7 07:38:22 field dhclient: DHCPREQUEST of 10.0.0.7 on wlan0 to 10.0.0.1 port 67 Feb 7 07:38:22 field dhclient: DHCPACK of 10.0.0.7 from 10.0.0.1 Feb 7 07:38:22 field dhclient: bound to 10.0.0.7 -- renewal in 268 seconds. dmi.bios.date: 09/16/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 308F0 Ver. F.17 dmi.board.name: 308F dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 02.10 dmi.chassis.asset.tag: CNU9424DRK dmi.chassis.type: 10 dmi.chassis.vendor: Inventec dmi.modalias: dmi:bvnHewlett-Packard:bvr308F0Ver.F.17:bd09/16/2009:svnHewlett-Packard:pnCompaqMini110c-1100:pvr0394110000001C00000300000:rvnHewlett-Packard:rn308F:rvrKBCVersion02.10:cvnInventec:ct10:cvr: dmi.product.name: Compaq Mini 110c-1100 dmi.product.version: 0394110000001C00000300000 dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 ubuntu-unr -- backlight keys sending acpi and input events, malfunctioning https://bugs.launchpad.net/bugs/518425 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs