This bug may be related to LP: #1218547 -- 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/1401415
Title: [Dell Inspiron 2350] could not control brightness Status in linux package in Ubuntu: Confirmed 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
