More information: I've tried the upstream (mainline) kernel 2.6.36 (see below). Same result--after 15 minutes of waiting, the fan and machine do not fully go to sleep.
Linux GhostWheelII 2.6.36-020636-generic #201010210905 SMP Thu Oct 21 09:08:58 UTC 2010 x86_64 GNU/Linux I also tried uninstalling the Nvidia driver. With the driver gone, I still get the machine not going fully to sleep. However, at least 3 of 4 times I was able to make the computer usable again by pressing the power button to 'wake' the system from its partial sleep. In other words, I was able to get an image on my monitor and use the keyboard and mouse. So, the graphics card driver is contributing something to the problem. Quite possibly, the graphics card is what is failing to go to sleep--I think it has the loudest fan on the entire system and the fan I hear when the system is suspended does not seem any quieter than normal. Repeated tests now show that *whenever* I suspend, the system fails to go to sleep. That is, the problem has become deterministic. It's quite odd that it was not deterministic when I first started using the system but became so. That made me think that perhaps some software I installed is causing problems. The only non-repository software I used was the Nvidia driver, but removing it didn't fix the problem. So, what else could it be? I decided to test the hypothesis of the software being a problem by running a clean copy of the system from a USB Startup Disk. I rebooted from the USB, got into the gnome desktop and ran suspend. More than 10 minutes later, the fan had not turned itself off. That suggests that it isn't the software on the system causing the problems. So, the mystery is how I could suspend and hibernate a few times before those stopped working deterministically, even after going to a USB Startup Disk. I haven't modified the BIOS. Perhaps something like the Nvidia driver permanently altered settings on the graphics card? I don't even know if that's possible. The other possibility is that hardware on the system has begun to go bad (after 2 days on a new system), though I see nothing in the logs on that (then again, I'm not an expert). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/722039 Title: System crashes / freezes on suspend -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
