Daily, random hard freeze/lock up during idle since 13.10
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
High
|
Unassigned |
Bug Description
Since about the final version of 13.10 (using it since Beta 2), my Lenovo L420 which was running stable until then randomly hard freezes/locks up about once a day while idling.
It never happens while I am using the PC, only when I am away. It sometimes runs through a whole night, and sometimes it freezes when I leave it idle for just an hour or so. Once it froze while the screen was not blank yet, same situation.
I have tried to disable power management in KDE and run without external screen and external harddisks, just on battery with nothing connected, then it also happens.
The screen is usually blank, there is no reaction to either mouse or keyboard, switching to a console not possible, connection through VNC or SSD not possible. I need to hard-shutdown by long-pressing the power button.
There is nothing in dmesg or syslog, it just ends and continues with the restarts. No kernel panics or something like that.
Any advice on how to trace down the issue or similar experience?
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-
ProcVersionSign
Uname: Linux 3.11.0-13-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Date: Wed Nov 27 14:06:00 2013
HibernationDevice: RESUME=
InstallationDate: Installed on 2013-09-08 (80 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902.2)
MachineType: LENOVO 78545HG
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 8GET44WW (1.21 )
dmi.board.name: 78545HG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 78545HG
dmi.product.
dmi.sys.vendor: LENOVO
This change was made by a bot.