Su Heng, thank you for reporting this and helping make Ubuntu better. As per http://www.dell.com/support/home/us/en/19/product- support/product/inspiron-11-3147-laptop/drivers/advanced an update to your computer's buggy and outdated BIOS is available (A09). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-a09 ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1432236 Title: lid hinge 360 degree, touch pad is not disabled automatically Status in xorg package in Ubuntu: Incomplete Bug description: dell 3147(dell 11 3000) , lid hinged and the keyboard auto disabled, however, the touch pad still enabled. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 Uname: Linux 3.18.0-031800-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.7 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sun Mar 15 04:37:14 2015 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu GraphicsCard: Intel Corporation ValleyView Gen7 [8086:0f31] (rev 0e) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:064d] InstallationDate: Installed on 2015-02-06 (36 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Dell Inc. Inspiron 11 - 3147 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.18.0-031800-generic root=UUID=5a93f377-0fc2-41fa-80da-8f3375cd5306 ro quiet splash atkbd.reset vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/23/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0TWP67 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A04 dmi.modalias: dmi:bvnDellInc.:bvrA04:bd01/23/2015:svnDellInc.:pnInspiron11-3147:pvr:rvnDellInc.:rn0TWP67:rvrA00:cvnDellInc.:ct8:cvrA04: dmi.product.name: Inspiron 11 - 3147 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.56-1~ubuntu2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Sun Mar 15 04:30:39 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 0 vendor LGD xserver.version: 2:1.15.1-0ubuntu2.7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1432236/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

