"Missing CUDA device".

[veebee]

I updated (via GetDeb) to 6.4.5 on one of my machines, which was running GPU grid on a GT 9500. (yes... painflly slow - I know..).

thing is , since the upgrade, I now get an error message.."Error: Missing CUDA device".

I have googled around and it seems (for Vista at least) that the problem is due to Boinc being installed as a service.....

anyone else run into this problem ?
or do I have to go back to the Synaptic repositry version of 6.2.x or something lowly...

[Wang Solutions]

I have not seen this problem, but have a few suggestions:

1) Try reinstalling/reloading the NVidia driver. I have found a few times that this is necessary after making system changes.

2) Make sure you have build-essential installed

3) Try a reboot or at least a full BOINC restart

You generally need at least BOINC 6.4.5 for CUDA to be properly recognised. Are you sure you updated all files?

[yoda]

It's tricky...   Took a while for mine to "take" as well. 

I can't remember exactly what fixed it but...   run the nvidia programs again, then restart BOINC and see what happens.

P.S. mine is running fine with BOINC 6.4.5.  I ran it with a later version for a while (6.6.something) but the scheduler was all out of whack - it would not ask any project for work. 

[veebee]

yeah, this was a fresh re-install of Ubuntu 8.1 a wek or so ago, and it took a couple of days before it just started "doing" GPU grid "by itself".

I have spent so much time fiddling with Nvidia drivers/ Envy/ Coolbits etc that now that I FINALLY have 1680 x 1050 resolution....I'm scared to "fiddle" anymore... lol.

Will see what I can come up with, tho I suppose its not really "worth" running GPUgrid on it anyways...

What about FAH ? does that run undr Ubuntu?

EDIT: Thanks Wang, shut down boinc client and re-started it .... GPU grid crunching (oh well.... chewing... without teeth in ... ) away.

[daveandton]

I find that I have to delete and re-install boinc every time I restart the computer to get it to work
Dave

[Tixx]

yeah i found that with older versions of boinc client on every reboot i had to repair the install for boinc to work.
this has been since fixed with latest versions.

you can just do a repair daveandton, dont have to uninstall and reinstall fully

[daveandton]

Thanks for that but I've got 6.4.5 Boinc and for my nvidia 9600gt card I've got version 180.11 driver for kubuntu, but I still get the problem every time I re-start.
Dave

[veebee]

I have been using the 6.6.11 version on a cpl of boxes without a prob (now up to 6.6.20 - may have to upgrade those boxes again).

[Wang Solutions]

Dave, try upgrading to the 182 drivers. These have fixed quite a few of the earlier issues.

[daveandton]

Wang
Unless I'm missing something I can only find that driver for Windoze and I use Kubuntu 8.10
Dave

[Wang Solutions]

Sorry yes, latest driver for linux is 180.44 but it has the same fixes as in the Windows 182.

[daveandton]

Thanks mate
I'll try it
Dave

[daveandton]

Wang
Despite what everybody says I think you're a legend. It worked
Thanks
Dave

[Rob]

OK. I've decided to try one more time to get this working on my Kubuntu box. Was hoping upgrading to 9.04 might miraculously fix it, but no such luck.
Which NVIDIA packages do I need from the repositories & which ones are possibly hindering things. When I search for NVIDIA in Synaptic, these are the packages it says I have installed :
envyng-core
envyng-qt
nvidia-settings
nvidia-180-kernel-source
nvidia-kernel-common
nvidia-common
nvclock-qt
nvclock-gtk
nvidia-71-modaliases
nvidia-173-modaliases
nvidia-180-modialiases
nvidia-96-modialiases
nvidia-glx-180
xserver-xorg-video-nv
smartdimmer
jockey-kde
jockey-common

I assume it's safe to remove all the  modaliases packages except the 180 one? I've tried re-installing all the 180 related packages & the kernal common, & common, but Boinc still says no Cuda devices found :cry2:

[Wang Solutions]

Did you reboot after installing the drivers?