apport information ** Tags added: trusty
** Description changed: The Dell M1330 backlight has exactly 8 levels of brightness. I expect each press of the brightness adjustment keys to change the brightness by one level. When I use the keyboard to adjust the brightness in GNOME, it sometimes changes by one level, and sometimes changes by two levels. In Karmic, the buttons worked like I have describe above. In Lucid, everything worked correctly. In Maverick (and every subsequent release at least through Precise), we're back to the same behavior as in Karmic. So this is a regression in functionality. --- Architecture: amd64 DistroRelease: Ubuntu 11.04 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) NonfreeKernelModules: nvidia wl Package: acpid 1:2.0.7-1ubuntu2 PackageArchitecture: amd64 ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/zsh ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8 Tags: natty running-unity Uname: Linux 2.6.38-11-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin cdrom dialout fuse lpadmin plugdev sambashare + --- + ApportVersion: 2.14.1-0ubuntu3.2 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: ryan 2465 F.... pulseaudio + CurrentDesktop: Unity + DistroRelease: Ubuntu 14.04 + HibernationDevice: RESUME=UUID=e00b6e22-9d5b-45f4-a861-8fa38e5ae470 + InstallationDate: Installed on 2014-06-15 (153 days ago) + InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) + MachineType: Dell Inc. XPS M1330 + NonfreeKernelModules: wl + Package: linux (not installed) + ProcFB: 0 nouveaufb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.11.2-phc root=UUID=355b9c19-46fe-44f2-8715-f9df660834f7 ro persistent quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 + RelatedPackageVersions: + linux-restricted-modules-3.13.11.2-phc N/A + linux-backports-modules-3.13.11.2-phc N/A + linux-firmware 1.127.4 + Tags: trusty + Uname: Linux 3.13.11.2-phc x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 12/26/2008 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: A15 + dmi.board.name: 0U8042 + dmi.board.vendor: Dell Inc. + dmi.chassis.type: 8 + dmi.chassis.vendor: Dell Inc. + dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0U8042:rvr:cvnDellInc.:ct8:cvr: + dmi.product.name: XPS M1330 + dmi.sys.vendor: Dell Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/720912/+attachment/4262085/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/720912 Title: Maverick (through Precise) regression: Dell M1330 backlight brightness messed up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720912/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs