Yes, but it will be great if it could pass with 3.13 kernel, in that case, we won't need to deal with the kernel upgrade issue like what we're dealing with recently (3.5 / 3.8 / 3.11 -> 3.13)
However, we should wait and see how many blocker would be solved on this system, then we decide if it's worth to fix it in 3.13. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1381851 Title: [Dell Latitude E5550] Brightness control does not work on this system Status in HWE Next Project: Incomplete Status in “linux” package in Ubuntu: Incomplete Bug description: CID: 201406-15271 Dell Latitude E5550 Brightness control does not work on this system The brightness level indicator would change with hotkey events, but the brightness itself does not. Debugging information: ubuntu@201406-15271:~$ ls /sys/class/backlight acpi_video0 intel_backlight ubuntu@201406-15271:~$ grep -r . /proc/acpi /proc/acpi/battery/BAT0/alarm:alarm: unsupported /proc/acpi/battery/BAT0/state:present: yes /proc/acpi/battery/BAT0/state:capacity state: ok /proc/acpi/battery/BAT0/state:charging state: discharging /proc/acpi/battery/BAT0/state:present rate: 772 mA /proc/acpi/battery/BAT0/state:remaining capacity: 3170 mAh /proc/acpi/battery/BAT0/state:present voltage: 12493 mV /proc/acpi/battery/BAT0/info:present: yes /proc/acpi/battery/BAT0/info:design capacity: 3540 mAh /proc/acpi/battery/BAT0/info:last full capacity: 3372 mAh /proc/acpi/battery/BAT0/info:battery technology: rechargeable /proc/acpi/battery/BAT0/info:design voltage: 11100 mV /proc/acpi/battery/BAT0/info:design capacity warning: 354 mAh /proc/acpi/battery/BAT0/info:design capacity low: 107 mAh /proc/acpi/battery/BAT0/info:cycle count: 0 /proc/acpi/battery/BAT0/info:capacity granularity 1: 35 mAh /proc/acpi/battery/BAT0/info:capacity granularity 2: 35 mAh /proc/acpi/battery/BAT0/info:model number: DELL 9P4D246 /proc/acpi/battery/BAT0/info:serial number: 226 /proc/acpi/battery/BAT0/info:battery type: LiP /proc/acpi/battery/BAT0/info:OEM info: LGC-LGC3.4 /proc/acpi/button/lid/LID0/state:state: open /proc/acpi/ac_adapter/AC/state:state: off-line /proc/acpi/wakeup:Device S-state Status Sysfs node /proc/acpi/wakeup:PEG0 S4 *disabled /proc/acpi/wakeup:PEGP S4 *disabled /proc/acpi/wakeup:PEG1 S4 *disabled /proc/acpi/wakeup:PEGP S4 *disabled /proc/acpi/wakeup:PEG2 S4 *disabled /proc/acpi/wakeup:PEGP S4 *disabled /proc/acpi/wakeup:RP01 S4 *disabled pci:0000:00:1c.0 /proc/acpi/wakeup:PXSX S4 *disabled pci:0000:01:00.0 /proc/acpi/wakeup:RP02 S4 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP03 S4 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP04 S4 *disabled pci:0000:00:1c.3 /proc/acpi/wakeup:PXSX S4 *disabled pci:0000:02:00.0 /proc/acpi/wakeup:RP05 S4 *disabled pci:0000:00:1c.4 /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP06 S4 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP07 S4 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP08 S4 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:GLAN S4 *disabled pci:0000:00:19.0 /proc/acpi/wakeup:EHC1 S0 *enabled pci:0000:00:1d.0 /proc/acpi/wakeup:EHC2 S0 *disabled /proc/acpi/wakeup:XHC S0 *enabled pci:0000:00:14.0 /proc/acpi/wakeup:HDEF S4 *disabled pci:0000:00:1b.0 /proc/acpi/wakeup:LID0 S3 *enabled /proc/acpi/wakeup:PBTN S3 *enabled ubuntu@201406-15271:~$ dmesg | grep 'ACPI: Video' [ 12.986933] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) ubuntu@201406-15271:~$ ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-37-generic 3.13.0-37.64 ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7 Uname: Linux 3.13.0-37-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 1530 F.... pulseaudio /dev/snd/controlC1: ubuntu 1530 F.... pulseaudio CurrentDesktop: Unity Date: Wed Oct 15 23:03:45 2014 HibernationDevice: RESUME=UUID=02cbc1f1-a261-484c-8fc2-05b68f73446d InstallationDate: Installed on 2014-10-09 (6 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Dell Inc. Latitude E5550 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic root=UUID=d3b20ae5-9ff8-49b3-b640-1c6a9f264710 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-37-generic N/A linux-backports-modules-3.13.0-37-generic N/A linux-firmware 1.127.7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/25/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: T43 dmi.board.name: 0141B2 dmi.board.vendor: Dell Inc. dmi.board.version: X02 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrT43:bd07/25/2014:svnDellInc.:pnLatitudeE5550:pvr01:rvnDellInc.:rn0141B2:rvrX02:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5550 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. 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