ubuntufan, thank you for reporting this and helping make Ubuntu better. As per http://support.lenovo.com/us/en/products/Desktops-and-all-in- ones/ThinkCentre-A-Series- desktops/ThinkCentre-A52?linkTrack=Homepage:Body_Search%20Products an update to your computer's buggy and outdated BIOS is available (2HKT14A). 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 New. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: 2hkt14a bios-outdated- ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => 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/1537443 Title: flickering of screen Status in xorg package in Ubuntu: Incomplete Bug description: There is sudden freeze of keyboard and mouse followed by flickering of led screen, I have found a work around by pressing ctlrl+alt+del resulting in opening of restart and shut down dialogue box. Most of the time the flickering stops without restarting the computer but some times I have to force restart the computer. I am using Ubuntu since 2008 and the problem started after upgrading from 15.04 to 15.10,it still persists after a clean reinstall and complete update yesterday. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1 Uname: Linux 4.2.0-27-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.19.1-0ubuntu5 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 Date: Sun Jan 24 10:17:59 2016 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu GraphicsCard: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:1005] InstallationDate: Installed on 2016-01-23 (0 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=f1918e0a-b847-4f36-a146-1a891057eca7 ro quiet splash vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/08/2006 dmi.bios.vendor: LENOVO dmi.bios.version: 2HKT13AUS dmi.board.name: LENOVO dmi.chassis.vendor: LENOVO dmi.modalias: dmi:bvnLENOVO:bvr2HKT13AUS:bd09/08/2006:svnLENOVO:pn8298D15:pvrThinkCentreA52:rvnLENOVO:rnLENOVO:rvr:cvnLENOVO:ct4:cvr: dmi.product.name: 8298D15 dmi.product.version: ThinkCentre A52 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+15.10.20151202-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Sun Jan 24 10:11:14 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input USB USB Keykoard KEYBOARD, id 8 input USB USB Keykoard KEYBOARD, id 9 input SIGMACHIP Usb Mouse MOUSE, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.2-1ubuntu9.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1537443/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
