I seem to have the same problem also on a Dell XPS 13 (2015) but with A03 BIOS. Currently running Kubuntu 15.04, Kernel 3.19.0-24-generic. Only I have the kernel panic 100% of the time when suspending from KDE either by closing the lid or from the KDE menu.
But I've found a tempory workaround. I've made a program starter with the following command line: qdbus org.freedesktop.ScreenSaver /ScreenSaver Lock ; sudo pm-suspend and put the following file into /etc/sudoers.d: mb@rhea:~$ cat /etc/sudoers.d/pm-suspend Cmnd_Alias SUSPEND = /usr/sbin/pm-suspend %sudo ALL = NOPASSWD: SUSPEND This locks the screen and goes into suspend flawlessly. So it must be something about the way KDE does suspend. -- 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/1468788 Title: Kernel panic on suspend/shutdown Status in linux package in Ubuntu: Incomplete Bug description: On (so far) spontaneous suspends (to RAM) or shutdowns, a kernel panic (blinking caps lock) will happen in roughly a third of the cases (felt, not measured). So far this has not happened when suspending manually through plasma. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-21-generic 3.19.0-21.21 ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8 Uname: Linux 3.19.0-21-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: alex 1604 F.... pulseaudio /dev/snd/controlC0: alex 1604 F.... pulseaudio CurrentDesktop: KDE Date: Thu Jun 25 16:50:43 2015 HibernationDevice: RESUME=UUID=4487b3ba-9f46-4a25-9afd-0763b18028d3 InstallationDate: Installed on 2015-06-01 (24 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Dell Inc. XPS 13 9343 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic.efi.signed root=UUID=73890e89-f87d-4854-923c-bcf888dd69a4 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-21-generic N/A linux-backports-modules-3.19.0-21-generic N/A linux-firmware 1.143.1 SourcePackage: linux UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/15/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0310JH dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA04:bd05/15/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9343 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1468788/+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
