Hi,

I'm running BOINC since 10th of december.
10th of december I've added SETI, Einstein and Milkyway projects.
11th I added LHC and Cosmology.

This two days I hadn't problems with BOINC, but today (12th), everytime I'm not using my computer, when I want to use it again I have a black screen. I hear the computer running and fan spinning, but I have to turn off the computer and restart it.

I guess it's a problem with screensaver, but this doesn't happen to me the other days.

Anyone has this problem too?
How can I fix it? (without changing my screensaver)

P.D.: I have an Nvidia GeForce GT 540M, and running BOINC 6.12.34 in Win7 64-bit.

Either you have the "turn off the display" power option set, and not enough patience to wait after you moved the mouse or hit a key on the keyboard, to see what will happen, or you have a problem with your videocard.

Since Seti and Einstein and Milkyway will try to use that videocard to do calculations on (CUDA), if at least you installed Nvidia drivers and allow these projects to use the GPU (default setting in BOINC is to use them). Despite your card being one of the Fermi versions, you don't say much else about it, so it's difficult to see how much memory it has, and whether this is real memory or added to it from your main RAM. Seeing how it's an M version (Mobile), it seems to be one in a laptop or notebook, right?

Especially so if it is a laptop/notebook, and you see a blank screen and hear the fan spinning, it will be a heat problem. Laptops/notebooks are notorious for heat build-up, which causes all kinds of problems on its own. They can't get rid of the extra heat that work being done by BOINC causes. Not without extra cooling, such as a cooling-pad, which are two or more big fans that you put the laptop on, which constantly blow cold(er) air from below into the laptop.

Anyway, Try running without the screen saver for now. Or try running without allowing Seti, Einstein and Milkyway to use the Nvidia GPU (this needs to be set on each project separately, in their project preferences) and see if that breaks your system less.

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