I have an Acer Aspire One netbook, which I'm using with Ubutu Netboox Remix 9.04. With a clean install, suspend seemed to be working fine. However, now that I've installed quite a lot of extra packages and done some configuring (bluetooth dialup, and such), I seem to have lost the suspend functionality.
When I try to go to suspend, the screen only shows a blinking text-mode cursor at the top left corner, and the computer never gets suspended. The only way out is a hard restart.
How can I troubleshoot the issue? For example, are there some specific log files I should be looking at, or such? Since the suspend was working on the clean install (and on the original linpus linux installation that came with the computer) I know this is not an unsolveable hardware compatibility problem. Removing/installing packages one by one would, of course, be an option - but this would be awfully time-consuming, since I have a lot of extra packages and no idea when the problem appeared. As far as I understand, I didn't install anything too weird that might be expected to cause such issues.
EDIT: The new release, Ubuntu Netbook Remix 9.10, fixed this. I can now suspend the netbook even with the memory extension mounted. This, however, does not work exactly how I'd hope... More information in new thread: Force unmount in Ubuntu, to fix problems after netbook sleep mode