lxg, as per http://support.lenovo.com/us/en/products/laptops-and- netbooks/thinkpad-t-series-laptops/thinkpad-t450s an update to your computer's buggy and outdated BIOS is available (1.17). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 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, and the information above is provided, then please mark this report Status Confirmed. Otherwise, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-1.17 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.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/1456531 Title: LightDM (?) blank/white screen after resume from suspend Status in linux package in Ubuntu: Incomplete Bug description: On Xubuntu 15.04, when I suspend the machine and resume afterwards, the screen remains completely white/blank. I can move the mouse cursor, but I don't see any screen elements. Clicking or wildly pressing keys doesn't do anything. I can switch to a different console with Ctrl+Alt+F1 and log in, just fine. For this bug report, I have removed all files from /var/log/lightdm, then rebooted, suspended, resumed, and switched to VT1. Then copied the /var/log/lightdm files to a different location. See their contents attached to this bug report. Other parameters: - Simply locking and unlocking the screen works, ALTHOUGH I also see the white screen there at first, and have to click a mouse button for the login form to show up. - I'm running a system with a fully encrypted hard-drive and have configured LightDM to log me in automatically. - System is up-to-date. - No experimental packages, although I had an experimental version of xserver-xorg-video-intel running, but removed it shortly after. - System is a Thinkpad T450s with Intel HD 5500 graphics. Hope I didn't forget to mention anything important. If you need more information or want me to try something, let me know. --- ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lxg 2068 F.... pulseaudio /dev/snd/controlC0: lxg 2068 F.... pulseaudio DistroRelease: Ubuntu 15.04 InstallationDate: Installed on 2015-05-16 (134 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) MachineType: LENOVO 20BXCTO1WW Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-28-generic root=UUID=7247f3dc-87dc-460f-a4ec-7d049af66a36 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.19.0-28-generic N/A linux-backports-modules-3.19.0-28-generic N/A linux-firmware 1.143.3 Tags: vivid UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 3.19.0-28-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 04/20/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET48WW (1.13 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BXCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET48WW(1.13):bd04/20/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BXCTO1WW dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1456531/+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
