Public bug reported: The following troubleshooting indicates that an ACPI events fired by the keyboard backlight up/down hotkeys are not being propagated as an input events.
https://wiki.ubuntu.com/Hotkeys/Troubleshooting See section 6a: run xev to test whether a keypress event is seen: xev | sed -n 's/^.*state \([0-9].*\), keycode *\([0-9]\+\) *\(.*\), .*$/keycode \2 = \3, state = \1/p' if the key code is wrong, or >there is no keypress event<, or the key only works once and then the desktop gets "stuck", exercise the "Fixing broken keys" section in /usr/share/doc/udev/README.keymap.txt (Ubuntu 9.10 and later). Find broken scan codes: sudo /lib/udev/keymap -i input/eventX if >not found with keymap<, use >acpi_listen< to determine whether the key is coming through as an ACPI event instead of a keypress $ acpi_listen # 0xC4 = up, 0xC5 = down hotkey ATKD 000000c4 00000011 hotkey ATKD 000000c5 00000011 if >there is an ACPI event but no keypress<, this is a bug in the kernel (ubuntu-bug linux) for not translating the ACPI event to an input event. ProblemType: Bug Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC663 Analog [ALC663 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: cjac 2304 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf4700000 irq 22' Mixer name : 'Realtek ALC663' Components : 'HDA:10ec0663,10431303,00100001' Controls : 24 Simple ctrls : 14 CheckboxSubmission: 71940e25d1716db6629c05795f7a5e2d CheckboxSystem: 7572a03ced97b60af945f51b4bd8c88a Date: Sun Mar 7 00:26:38 2010 DistroRelease: Ubuntu 9.10 HibernationDevice: RESUME=UUID=2eb002fc-8e79-48aa-8f07-7cb461439c81 MachineType: ASUSTek Computer Inc. G60J NonfreeKernelModules: nvidia Package: linux-image-2.6.31-20-generic 2.6.31-20.57 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-20-generic root=/dev/mapper/vg0-newroot ro quiet splash ProcEnviron: LANGUAGE=en_US.UTF-8 PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-20.57-generic RelatedPackageVersions: linux-backports-modules-2.6.31-20-generic N/A linux-firmware 1.26 SourcePackage: linux Uname: Linux 2.6.31-20-generic x86_64 dmi.bios.date: 10/16/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 204 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: G60J dmi.board.vendor: PEGATRON CORPORATION dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: PEGATRON Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr204:bd10/16/2009:svnASUSTekComputerInc.:pnG60J:pvr1.0:rvnPEGATRONCORPORATION:rnG60J:rvr1.0:cvnPEGATRONComputerInc.:ct10:cvr1.0: dmi.product.name: G60J dmi.product.version: 1.0 dmi.sys.vendor: ASUSTek Computer Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug -- ASUS G60J keyboard backlight brightness hotkeys don't work https://bugs.launchpad.net/bugs/533690 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
