[Bug 1401415] Re: [Dell Inspiron 2350] could not control brightness

The task "linux (Ubuntu)" has expired because it has had no new comments or updates for more than three years. If this issue is still present in an Ubuntu LTS kernel still under active support, please reopen the bug and provide updated details. If this issue was reported against an Ubuntu kernel no longer under active support but the issue still exists in a currently supported Ubuntu kernel, please open a new bug against that kernel version and provide the updated details, with a reference link to the original bug. This action was performed by an automated process maintained by the Ubuntu Kernel Team. ** Tags added: kernel-autoclosed kernel-autoclosed-expired ** Changed in: linux (Ubuntu) Status: Confirmed => Expired -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/1401415 Title: [Dell Inspiron 2350] could not control brightness Status in linux package in Ubuntu: Expired Bug description: Dell Inspiron 2350 (CID 201305-13669) with Ubuntu 14.04.1 Linux 201305-13669 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux VGA compatible controller [0300]: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) Steps to reproduce this bug: 1. install Ubuntu 14.04.1 2. after installing, boot into desktop 3. dash --> brightness Expected result: There is an brightness slider on the brightness panel Actual result: There is no such slider. More information: /sys/class/backlight/ shows nothing ubuntu@201305-13669:~$ ls /sys/class/backlight/ ubuntu@201305-13669:~$ --------------------------------------------------------------- ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse:  USER PID ACCESS COMMAND  /dev/snd/controlC0: ubuntu 1476 F.... pulseaudio  /dev/snd/controlC1: ubuntu 1476 F.... pulseaudio CurrentDesktop: Unity CurrentDmesg:  [ 15.148179] thinkpad_ec: no ThinkPad embedded controller!  [ 17.013792] init: plymouth-upstart-bridge main process ended, respawning  [ 17.021574] init: plymouth-upstart-bridge main process ended, respawning  [ 17.969005] r8169 0000:03:00.0 eth0: link up  [ 17.969013] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=a6237ffe-4fa9-4ab7-9253-55430263f86f InstallationDate: Installed on 2014-12-08 (2 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Dell Inc. Inspiron 2350 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=fe7cefb8-002c-4091-9a6e-6cab455727b5 ro rootdelay=60 quiet splash initcall_debug vt.handoff=7 ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4 RelatedPackageVersions:  linux-restricted-modules-3.13.0-32-generic N/A  linux-backports-modules-3.13.0-32-generic N/A  linux-firmware 1.127.5 Tags: trusty Uname: Linux 3.13.0-32-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/02/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A02 dmi.board.name: 08NG84 dmi.board.vendor: Dell Inc. dmi.board.version: X01 dmi.chassis.type: 13 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 00 dmi.modalias: dmi:bvnDellInc.:bvrA02:bd09/02/2013:svnDellInc.:pnInspiron2350:pvr00:rvnDellInc.:rn08NG84:rvrX01:cvnDellInc.:ct13:cvr00: dmi.product.name: Inspiron 2350 dmi.product.version: 00 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1401415/+subscriptions