Hi, OS: Ubuntu Server 12.04.3 Installed: CUDA5.5 Installed: Boinc Client Installed a Ubuntu Server 12.04 and CUDA5.5 for number crunching/Boinc. Used the 12.04.3 update, since the 12.04.4 update doesn't work with CUDA! System runs perfect, using all 4 GPU's to crunch data. Suddenly, without installing anything or updating anything, the GPU's is lost to Boinc! Please see this image: Checking the hardware using this command, tells us: # lspci | grep -i nvidia Code: 01:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 640 Rev. 2] (rev a1) 01:00.1 Audio device: NVIDIA Corporation Device 0e0f (rev a1) 02:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 640 Rev. 2] (rev a1) 02:00.1 Audio device: NVIDIA Corporation Device 0e0f (rev a1) 03:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 640 Rev. 2] (rev a1) 03:00.1 Audio device: NVIDIA Corporation Device 0e0f (rev a1) 04:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 640 Rev. 2] (rev a1) 04:00.1 Audio device: NVIDIA Corporation Device 0e0f (rev a1) Using this command to check the GPU's attached, usually shows all 4 GPU's and temperature, but know nothing is found. The error message was something like this: # nvidia-smi -a |grep Gpu Code: NVIDIA: failed to load the NVIDIA kernel module. No signal to moniter either.... There's no output to the monitor either, and the monitor works just fine. Putting a Installation CD in the DVD drive and booting makes the signal to the monitor work again!?!?!? I'm totally lost! Does a "coorupt driver" or what it might be, do this? So that you can't se anything on the monitor???
Dumped 12.04.3/CUDA5.5 and went along woth 14.04.1/CUDA6.5 !!! Hi, Never mind this post! I went along with Ubuntu Server 14.04.1 & CUDA v.6.5 and it works just fine. Had to change some minor things but it's running, and it seems to be running pretty d... good The command I usually use for my "WatchDog*" scripts when it comes to the GPU's, is # nvidia-smi -a | grep Gpu but this doesn't return any temperature anymore. Only N/A I modified the command to: # nvidia-smi -a | grep GPU and I'm able to use this output for the scripts. It's not the same, but it can be used. Anybody who knows why this has changed???
