After updating the kernel, the iwlwifi driver crashes, causing a slowdown and then unresponsive internet connection; the network applet shows that nothing has changed, but dmesg | grep iwl shows that the driver has crashed.
I had this problem in a previous kernel version, and it came back with the recent update. My internet is stable on 4.4.0-59.
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ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gwen 2702 F.... pulseaudio
/dev/snd/pcmC1D0p: gwen 2702 F...m pulseaudio
/dev/snd/controlC1: gwen 2702 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=2c70b958-e0e0-4dc1-a37e-71ef9d056fb6
InstallationDate: Installed on 2016-01-23 (383 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: LENOVO 20DL0038US
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=1ee8c80d-12f6-4663-b419-dbc5bd18f6d3 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
RelatedPackageVersions:
linux-restricted-modules-4.4.0-59-generic N/A
linux-backports-modules-4.4.0-59-generic N/A
linux-firmware 1.157.6
Tags: xenial
Uname: Linux 4.4.0-59-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-07-13 (210 days ago)
UserGroups: adm cdrom dip kvm libvirtd lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 02/02/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JEET58WW (1.07 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20DL0038US
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:bvrJEET58WW(1.07):bd02/02/2015:svnLENOVO:pn20DL0038US:pvrThinkPadS1Yoga12:rvnLENOVO:rn20DL0038US:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20DL0038US
dmi.product.version: ThinkPad S1 Yoga 12
dmi.sys.vendor: LENOVO
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1663296
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.