This change was made by a bot. ** Changed in: linux (Ubuntu) Status: New => Confirmed
-- 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/1258686 Title: Faulty laptop battery or AC throws system cache for a loop Status in “linux” package in Ubuntu: Confirmed Bug description: After a random period of time after a fresh boot, the system cache gets corrupted. This is shown by hdparm -T. Before system cache corruption: Timing cached reads: 1804 MB in 2.00 seconds = 902.88 MB/sec After system cache corruption: Timing cached reads: 258 MB in 2.00 seconds = 129.10 MB/sec Either the system battery or the AC adaptor is not functioning correctly, the Dell bios at times indicates that the AC adaptor is not a valid Dell product, though it is. In any case, the battery does not charge, but remains at 0%. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic i686 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: asp 1931 F.... pulseaudio Date: Fri Dec 6 18:45:58 2013 HibernationDevice: RESUME=UUID=08003f81-dc4b-4697-adb9-c4f28291be17 InstallationDate: Installed on 2013-12-06 (0 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1) MachineType: Dell Inc. Latitude D420 MarkForUpload: True PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=ecd26c7d-0cb5-446e-a2ca-e4fefc0c0fd0 ro quiet splash processor.ignore_ppc=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-12-generic N/A linux-backports-modules-3.11.0-12-generic N/A linux-firmware 1.116 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/02/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0TJ984 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/02/2008:svnDellInc.:pnLatitudeD420:pvr:rvnDellInc.:rn0TJ984:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude D420 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1258686/+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