pm-suspend.log shows this error line. Everything else is success. Running hook /usr/lib/pm-utils/sleep.d/60_wpa_supplicant suspend suspend: Failed to connect to non-global ctrl_ifname: (null) error: No such file or directory /usr/lib/pm-utils/sleep.d/60_wpa_supplicant suspend suspend: success.
It seems this bug has been reported in many places since a long time ago. -- 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/1449357 Title: Thinkpad T450s unable to resume after suspended for a long time Status in linux package in Ubuntu: Confirmed Bug description: My laptop shows a black screen when resumes from suspend. I'm unable to log in with ctrl-alt-f1 then ctrl-alt-f7. I'm able to control the keyboard backlight, the LED on the power button still looks like the way the laptop is in suspend. I'm only able to log in by pressing the power button and power off. This issue only happens when I close the lid and leave the computer for a long time. If I close the lid and open it in around 1 minute, it resumes just fine. I have to press the suspend button in the drop down menu to suspend the laptop first, and then close the lid. In that case, the laptop resumes without error. I've set in the power settings to let the laptop do nothing when lid is closed, and that didn't change the problem. The laptop only has an Intel integrated graphics card. I've tried using the newest i915 driver from o1.org and the same problem persists. This same problem is observed in clean installs of 14.04LTS, 14.10 and 15.04. I updated to 15.04 from 14.10 using the built-in updater. The laptop runs the newest version of BIOS from Lenovo. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-15-generic 3.19.0-15.15 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: pinghao 3446 F.... pulseaudio /dev/snd/controlC0: pinghao 3446 F.... pulseaudio CurrentDesktop: Unity Date: Mon Apr 27 23:44:32 2015 HibernationDevice: RESUME=UUID=72731580-3c1d-4d92-8d3d-c07fd1031447 InstallationDate: Installed on 2015-04-16 (11 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20BX001LUS ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-15-generic N/A linux-backports-modules-3.19.0-15-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-24 (3 days ago) dmi.bios.date: 03/10/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET47WW (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BX001LUS dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET47WW(1.12):bd03/10/2015:svnLENOVO:pn20BX001LUS:pvrThinkPadT450s:rvnLENOVO:rn20BX001LUS:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BX001LUS 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/1449357/+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