Just a week or so ago the latest Ubuntu Linux X86_64 update
resulted in a kernel which is incompatible with nvidia 290.10 or
295.20. So back to 280.13 (which does at least allow
booting into X so I have graphical windows!).
I hope a kernel change (or action by NVIDIA) fixes
this before long as boinc now fails to recognize my GeForce GTX 560 TI.
Sigh.

Well, back to pure CPU SETI computing for the moment (not that I am
getting much either, but at least a little).

Just a week or so ago the latest Ubuntu Linux X86_64 update
resulted in a kernel which is incompatible with nvidia 290.10 or
295.20. So back to 280.13 (which does at least allow
booting into X so I have graphical windows!).
I hope a kernel change (or action by NVIDIA) fixes
this before long as boinc now fails to recognize my GeForce GTX 560 TI.
Sigh.

Well, back to pure CPU SETI computing for the moment (not that I am
getting much either, but at least a little).

Hope you can report that to the Linux folks....messing up 3 different generations of NV drivers, I would not think it's NV's problem.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Just a week or so ago the latest Ubuntu Linux X86_64 update
resulted in a kernel which is incompatible with nvidia 290.10 or
295.20. So back to 280.13 (which does at least allow
booting into X so I have graphical windows!).
I hope a kernel change (or action by NVIDIA) fixes
this before long as boinc now fails to recognize my GeForce GTX 560 TI.
Sigh.

Well, back to pure CPU SETI computing for the moment (not that I am
getting much either, but at least a little).

Check out this thread: Linux x64 Cuda Multibeam (x41g).

There is at least one member (ausymark, 11th message) which let run x41g with Ubuntu 11.10 .

What is the min driver for the x41g Linux app?

E.g. for Windows it's a nVIDIA driver which support at least CUDA V3.2 .

If this is the app name (setiathome_x41g_x86_64-pc-linux-gnu_cuda32) then I guess it's the same story..


- Best regards! - Sutaru Tsureku, team seti.international founder. - Optimize your PC for higher RAC. - SETI@home needs your help. -

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I had this exact same problem with Ubuntu last week and after I shifted to Fedora I ran into different, but equally painful driver incompatibility problems there as well.

Unfortunately, I just do not have time to fix any of this anymore and I am forced to run on that "other" operating system.

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I was running x41g myself till the kernel update. On 11.10.
But then a minor kernel update broke things ... the driver
was kicked out (somehow) and Linux went back to the driver
Ubuntu recommends.
I won't have time to follow up till Feb 22 at earliest,
but http://forums.nvidia.com/index.php?showtopic=220377
suggests there is a workaround (see the end of the thread,
a long description there). It is basically redoing what
we (all) did earlier, mostly. But with a kernel setting
added to the kernel startup.

I hope the stuff suggested there will work, I'd love to get x41g
working again. Whether with 290.10 (which worked
till a seemingly-routine kernel update invalidated driver 290.10)
or 295.20 (latest from nvidia).

It's up to nvidia to deal with this (not Linux folks) since the
nvidia driver is closed proprietary source which Linux kernel folks
cannot look at or fix. But you knew that :-)

Things did get a little exciting when X would not come up with
290.10 when I sort of accepted an install from nvidia that
acknowledged it found a problem. With Ubuntu there is no
'startup level' so I had to get a vga window CNTRL-ALT-F1
and do stuff like
sudo service lightdm stop
sudo service boinc-client stop
before the nvidia install script would do much at all.
But the result got a startup error. Curiously, an
Ubuntu splash screen (moderately attractive screen)
for xubuntu came up normally, but then the kernel got some error
and turned off the X stuff, so all I could
do was type to a simple vga window with no decent graphics
or copy paste or...the rest of the stuff we get
so used to. Just a text window. Perhaps that kernel error
is what the forum posting kernel-setting avoids.

What is the min driver for the x41g Linux app?

The minimum Linux driver for a Cuda 3.2 application is (from the README included with the x41g app):
* CUDA 3.2 Video Driver (260.19.26 or higher)

I found some messy instructions for 11.10 that added a 'nomodeset'
to the kernel boot line (in grub) --- but this does no good,
the install does not work. I wind up with 280.13 installed
even though the install process says it is installing 295.20
from an ubuntu repository.

The vast majority of the nvidia install instructions on the web to
get a later driver than 280.13 in 11.10 is more than
a few weeks old, and back then those instructions actually worked.
But now...not so much.

With 280.13 boinc does not even recognize the driver version at all.

Since nvidia stuff is proprietary, the Linux folks cannot do
the sort of things they would like to do.

For unclear reasons (after several reboots and fooling around)
boinc recognizes the gpu now, even with 280.13 driver.
I'll keep an eye on results to make sure its not failing.

I am running 10:04 LTS Lucid with kernel 2.6.32-38 with all updates and nv driver 295.20 and x41g
and from what has been sed here i will be very wary of which updates i allow to install
It used to be dependency`s hell, that is mostly sorted these days
it is rapidily turning into driver hell.

I had problems too with NVIDIA drivers and made a HOW TO - Full installation Ubuntu 11.10

Just in case is of use to somebody.

Now there is your problem. You have a fully commercialized Windows available to you and you waste your free time trying to make a toast install work.....LOL.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

..Linux folks...

This thread is a about "Ubuntu" thing for noobies and their packages, not Linux and actual nVidia drivers by nVidia.
Because I never had any problems installing nVidia drivers on any of the 2.6.x kernels, including the latest 295.20. I always use official nVidia drivers.
It's "ubuntu distribution maintainer folks" who should get their stuff together.

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Now there is your problem. You have a fully commercialized Windows available to you and you waste your free time trying to make a toast install work.....LOL.

If you have only one computer running maybe you are right. If you have a few, like I do, it's more interesting to waste your time and earn all the licences to buy more hardware.

I also tried 295.20 direct from nvidia and it got an error
in the install process (the install shell script from nvidia
complained about kernel headers or the build process or something).
The result did not work (as I described earlier in this
thread).

Folks using Ubuntu 12.04 report problems with kernel headers and nvidia
295.20, but the workaround they suggest (after all 12.04 is not released)
does not apply to 11.10 (I checked in my kernel headers to see
if their 'cp' command would work).

Maybe it's time to redo an uninstall-install of the nvidia
download just to see if maybe I was doing something wrong before.
I'm getting better at running the machine from a vga window without
X running while going through all this. To actually stop X fully
so the nvidia-install-script works at all one
has to stop both X and boinc-client (I discovered early on
in this process).