gpu-manager searches for a wrong string when checking if nvidia was unloaded

[Rafał Cieślak]

I am using Ubuntu 14.04 with an Intel 4000HD and Nvidia GTX 770.
I have noticed that my gpu-manager claims that:
    Was nvidia unloaded? yes
even though the nvidia module is loaded and was never unloaded (and lsmod displays it).
Quick investigation showed that gpu-manager checks whether that module was unloaded by running:
    dmesg | grep -q "nvidia: module"
I assume that the intention was to detect any "nvidia: module unloaded" or similar messages.
However, my dmesg contains several other messages that match this pattern:
    nvidia: module license 'NVIDIA' taints kernel.
    nvidia: module verification failed: signature and/or required key missing - tainting kernel
These messages are not realated to unloading the module, it sucessfully keeps running afterwards.
Therefore I believe the pattern used by gpu-manager is incorrect.

Possible solution is to correct that search string. The only message that appears in my dmesg when I unload nvidia module is:
    [drm] Module unloaded
The dmesg output never explicitly names `nvidia` when it is unloaded.
Another possible solution would be to grep lsmod instead of dmesg, to check if the driver is currently loaded.

[Alberto Milone (albertomilone)]

I have addressed this issue in the 1:0.2.98 release

[Alberto Milone (albertomilone)]

I'll be tracking this as part of LP: #1310489