Hello, On a T440s (intel graphic + nvidia) with ubuntu 16.04, I experience random freezes when waking up from hibernation.
Suspend to ram works fine. But when waking up from suspend to disk, it happens that either the screen go black and the system becomes totally unresponsive, or the system actually wakes up but freezes soon after, in this latter case, I can see in the log a "general protection fault" followed by what seems to be a kernel crash (can post it if you want). But sometimes, it runs just well, it is quite random. I suspect some kind of race conditions, but it always happens if I hibernate/wakes up more than 3/4 times one after the other. >From the logs, I cannot infer what is going on. It also happened with ubuntu 14.04 but much more rarely. When installing ubuntu 16.04, I had to put the wifi module in the SUSPEND_MODULE list for the hibernation to work (crashes every time otherwise). Putting more modules (bluetooth, bbswitch) did not solve the issue. Could you help me in solving this bug ? What should I do ? Thanks in advance for your attention. Regards T440s (intel graphics + nvidia) + ubuntu 16.04 (latest kernel) + latest bios (2.39) -- 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/1566302 Title: Ubuntu 16.04: Suspend freezes the system after upgrade to linux image 4.4.0-16 Status in linux package in Ubuntu: Won't Fix Bug description: I'm using ubuntu 16.04 on a XPS 15 9550. Suspend/resume worked flawlessly with linux image 4.4.0-15, and after standard upgrade yesterday (5/04/2016) which installed image 4.4.0-16, the system freezes when attempting a suspend. I get no response from the system (nor keyboard, nor screen, nor touchpad), but it gets very hot, so that it must be running something. Booting with 4.4.0-15 makes the suspend to work perfectly. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-extra-4.4.0-16-generic 4.4.0-16.32 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: macias 1770 F.... pulseaudio CurrentDesktop: X-Cinnamon Date: Tue Apr 5 14:56:17 2016 HibernationDevice: RESUME=UUID=4180adfa-3852-4a96-86b4-f3696448c743 InstallationDate: Installed on 2016-03-07 (28 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160304) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. Bus 001 Device 004: ID 1bcf:2b95 Sunplus Innovation Technology Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 15 9550 ProcEnviron: LANGUAGE=es_ES PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=es_ES.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic.efi.signed root=UUID=673f4658-75f8-4c01-bcd8-0af860269699 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-15-generic N/A linux-backports-modules-4.4.0-15-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/25/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.01.19 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302/+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
