Today I issued an apt-get dist-upgrade and the kernel has been upgraded to
the above.

I always had this issue but only when getting back from hibernation (I've
installed only a couple of months ago)

After the upgrade of today the issues become severe.. I cannot have a
coffee without rebooting afterwards :)
Today only I've seen the panic message on the console and more logging
about nouveau

I'm going to try 4.1-rc8-unstable from kernel-ppa/mainline and report back
from here
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc8-unstable/linux-headers-4.1.0-040100rc8-generic_4.1.0-040100rc8.201506150335_amd64.deb

Thank you

Best
Luca




2015-06-15 20:49 GMT+02:00 Joseph Salisbury <email address hidden>
:

> Did this issue start happening after an update/upgrade?  Was there a
> prior kernel version where you were not having this particular problem?
>
> Would it be possible for you to test the latest upstream kernel? Refer
> to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
> v4.1 kernel[0].
>
> If this bug is fixed in the mainline kernel, please add the following
> tag 'kernel-fixed-upstream'.
>
> If the mainline kernel does not fix this bug, please add the tag:
> 'kernel-bug-exists-upstream'.
>
> If you are unable to test the mainline kernel, for example it will not
> boot, please add the tag: 'kernel-unable-to-test-upstream'.
> Once testing of the upstream kernel is complete, please mark this bug as
> "Confirmed".
>
>
> Thanks in advance.
>
> [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc8-unstable/
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1465364
>
> Title:
>   Laptop freeze with panic error
>
> Status in linux package in Ubuntu:
>   Confirmed
>
> Bug description:
>   When getting back to the pc and the screen is turned off, the pc
>   freeze and sometime show a message like (sorry do not have full
>   message)
>
>   drm_kms_helper: panic ...
>
>   In dmesg I see a lot of noveau related error like
>
>
>   [  +0,001098] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK08 ]  #
> thousand like this!
>   [  +0,001099] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK08 ]
>   [  +0,001098] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK08 ]
>   [  +0,001099] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK08 ]
>   [  +0,001097] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK08 ]
>   [  +0,001096] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK08 ]
>   [  +0,000566] nouveau E[   PFIFO][0000:01:00.0] runlist 4 update timeout
>   [  +0,000123] [drm] Initialized nouveau 1.2.1 20120801 for 0000:01:00.0
> on minor 1
>   [  +1,260477] nouveau  [  PGRAPH][0000:01:00.0] using external firmware
>   [  +0,000022] nouveau 0000:01:00.0: Direct firmware load for
> nouveau/nv117_fuc409c failed with error -2
>   [  +0,000006] nouveau 0000:01:00.0: Direct firmware load for
> nouveau/fuc409c failed with error -2
>   [  +0,000001] nouveau E[  PGRAPH][0000:01:00.0] failed to load fuc409c
>   [giu15 20:06] nouveau E[   PIBUS][0000:01:00.0] HUB0: 0x6013d4
> 0xffff573f (0x1c408200)
>   [giu15 20:09] nouveau E[   PIBUS][0000:01:00.0] HUB0: 0x6013d4
> 0xffffffff (0x1b40822c)
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 15.04
>   Package: linux-image-3.19.0-20-generic 3.19.0-20.20
>   ProcVersionSignature: Ubuntu 3.19.0-20.20-generic 3.19.8
>   Uname: Linux 3.19.0-20-generic x86_64
>   ApportVersion: 2.17.2-0ubuntu1.1
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC1:  l          1422 F.... pulseaudio
>    /dev/snd/controlC0:  l          1422 F.... pulseaudio
>   CurrentDesktop: LXDE
>   Date: Mon Jun 15 20:09:15 2015
>   HibernationDevice: RESUME=UUID=5bb9993a-20aa-42b9-b775-d2508ba91475
>   InstallationDate: Installed on 2015-04-16 (59 days ago)
>   InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release amd64
> (20141022.1)
>   MachineType: LENOVO 20378
>   ProcFB: 0 inteldrmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-20-generic
> root=UUID=949b66c8-bdcd-4186-980e-b873d5da5906 ro quiet splash vt.handoff=7
>   RelatedPackageVersions:
>    linux-restricted-modules-3.19.0-20-generic N/A
>    linux-backports-modules-3.19.0-20-generic  N/A
>    linux-firmware                             1.143.1
>   SourcePackage: linux
>   UpgradeStatus: Upgraded to vivid on 2015-05-24 (22 days ago)
>   dmi.bios.date: 08/18/2014
>   dmi.bios.vendor: LENOVO
>   dmi.bios.version: 9ECN31WW(V1.14)
>   dmi.board.asset.tag: 00000000NO DPK
>   dmi.board.name: Lenovo Y50-70
>   dmi.board.vendor: LENOVO
>   dmi.board.version: 00000000NO DPK
>   dmi.chassis.asset.tag: 00000000NO DPK
>   dmi.chassis.type: 10
>   dmi.chassis.vendor: LENOVO
>   dmi.chassis.version: Lenovo Y50-70
>   dmi.modalias:
> dmi:bvnLENOVO:bvr9ECN31WW(V1.14):bd08/18/2014:svnLENOVO:pn20378:pvrLenovoY50-70:rvnLENOVO:rnLenovoY50-70:rvr00000000NODPK:cvnLENOVO:ct10:cvrLenovoY50-70:
>   dmi.product.name: 20378
>   dmi.product.version: Lenovo Y50-70
>   dmi.sys.vendor: LENOVO
>
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>