nVidia driver - Problem report on every reboot

MR ZenWiz mrzenwiz at gmail.com
Thu Apr 30 21:06:39 UTC 2015


I'm running Xubuntu 14.04.2 on my home and work desktops.  Both have
an nVidia graphics card in them.  I've installed the Ubuntu nVidia-340
driver package from the Ubuntu repository and it seems to be running
fine.

However, every time I get a kernel update and have to reboot, I get
one or two "problem report"s where the system detects a problem, asks
me if I want to report it, and then when it runs, it tells me it can't
report the problem because this isn't an Ubuntu package.

I have this crazy expectation that drivers from the Ubuntu repository
will either work properly or at least report problems upstream.

What shows up in the logs is this:

kern.log and syslog:
Apr 30 11:27:24 USITRICHTMD1C kernel: [   30.971413] nvidia: module
license 'NVIDIA' taints kernel.
Apr 30 11:27:24 USITRICHTMD1C kernel: [   30.971421] Disabling lock
debugging due to kernel taint
Apr 30 11:27:24 USITRICHTMD1C kernel: [   30.977137] nvidia: module
verification failed: signature and/or  required key missing - tainting
kernel
Apr 30 11:27:24 USITRICHTMD1C kernel: [   30.986654] vgaarb: device
changed decodes:
PCI:0000:02:00.0,olddecodes=io+mem,decodes=none:owns=none
Apr 30 11:27:24 USITRICHTMD1C kernel: [   30.987228] [drm] Initialized
nvidia-drm 0.0.0 20150116 for 0000:02:00.0 on minor 0
Apr 30 11:27:24 USITRICHTMD1C kernel: [   30.987256] NVRM: loading
NVIDIA UNIX x86_64 Kernel Module  340.76  Thu Jan 22 12:11:08 PST 2015

dmesg.0 and dmesg:
[   26.808465] nvidia: module license 'NVIDIA' taints kernel.
[   26.808473] Disabling lock debugging due to kernel taint
[   26.814753] nvidia: module verification failed: signature and/or
required key missing - tainting kernel
[   26.821901] vgaarb: device changed decodes:
PCI:0000:02:00.0,olddecodes=io+mem,decodes=none:owns=none
[   26.822562] [drm] Initialized nvidia-drm 0.0.0 20150116 for
0000:02:00.0 on minor 0
[   26.822583] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  340.76
Thu Jan 22 12:11:08 PST 2015

apt/term.log:
run-parts: executing /etc/kernel/postinst.d/dkms 3.13.0-51-generic
/boot/vmlinuz-3.13.0-51-generic^M
Error! Bad return status for module build on kernel: 3.13.0-51-generic
(x86_64)^M
Consult /var/lib/dkms/nvidia-340/340.76/build/make.log for more information.^M

However, /var/lib/dkms/nvidia-340/340.76/build/make.log is empty.

I'm not entirely sure what that means.  Any suggestions?

Thanks.
MR




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