Hi all , recently I updated nvidia drivers to 331.67 on linux ( OpenSuse 13.1 X64) and now Cycles doesn’t find my GPU (gtx 760).
Anyone else has this problem?
Are you sure the driver update was successful? Have you checked whether the system is using nouveau or nvidia driver? Can you open nvidia-settings?
Hi, I have no problems on Opensuse 13.1/64 with this driver but I had the problem YAFU mention some time ago.
Driver was installed with Yast but simply not used.
Cheers, mib.
Bls, after some test cuda stop working for me too with 2.70a, Buildbot and own build.
I thing something happen during latest updates, grrr.
Cheers, mib.
EDIT: My other Cuda render engine Octane also don´t work anymore, so not Blender related.
I’m using Nvidia drivers, I’m sure, so it’s a driver error?
Then I suppose we have to wait for new drivers or install previous.
Perhaps this is related to this report?
https://developer.blender.org/T39149
Also see the link to nvidia developer zone in that report.
Edit:
I have installed the nvidia 331.38 driver in Kubuntu 14.04. The package “nvidia-331-uvm” is not installed and the uvm module seems not to be loaded, but CUDA in Blender is working anyway.
I install nvidia 331.67 (and 337.12 beta) from xorg edgers PPA and nvidia driver is loaded by the system, but CUDA does not work (I have no GPU Compute available in blender cycles). So I do not know if this is related to that report and uvm.
Tested with Blender 2.69 and 2.7
Hi, after installing 331.49 manually all cuda functionality was back.
I´ll try 331.67 from Nvidia later because I think it is a Suse problem maybe.
Thanks YAFU for the Hint.
Cheers, mib
EDIT: The 331.67 downloaded from Nvidia work fine so it is a Suse problem.
Thanks a lot guys I’ll try to install manually nvidia drivers.
mib2berlin usually I install drivers through one click install, now I’ll have to uninstall them from Yast and then
run nvidia drivers installer file?
Hi, you have nothing to uninstall but it is terminal work to install a driver manually.
If you can find a “One Click” install for 331.49 go for it.
Maybe the Suse guys fix it in a few days.
Short description for manual install:
DL driver from Nvidia
Install dkms with Yast
Close all windows/applications
Open terminal with “strg+alt + F1”
Shoot down xserver with “init 3”
Go to the DL location and start install driver with “sh NVIDIA.xyz.run”
Hit “Yes” several times during installation
Start xserver with “init 5”
Ready
This can damage your system, if you not familar with terminal work don´t try it.
Cheers, mib.
Thanks, I’ll try with Yast first to install previous drivers and if fails I’ll try through terminal. Wish me good luck 
Ok I have my GPU rendering back!! Thank you mib2berlin, you saved me again!!
I had the same problem with 331.67 (debian) and went straight to 337.19…maybe that’s my problem…
The problem seems to be related with this:
https://devtalk.nvidia.com/default/topic/699610/334-21-driver-returns-999-on-cuinit-cuda-/
As earlier said mib2berlin in comment #7, perhaps nVidia has made some changes and therefore the distributions are not properly packaging the driver.
Anyway, you can report to your distribution so that they try to do something. Here the report to the Ubuntu family (you login to launchpad and you join as affected if you have the same problem):
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331-updates/+bug/1375841
Edit:
Well, installing “nvidia-modprobe” package seems to solve the problem:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1361207