I have an EeePC 900 and the latest Eeebuntu. Very often when I try to come out of suspend state, things appear to work for a few seconds, and then the screen goes blank (not necesssarily black) and the computer locks up. Forced power-off is required to recover.

Last person who reported something similar was having X crash when they came out of suspend. Can you check the logs after you reboot for any indication of what's causing the lock?

Logs are in System->Admin->System Logs.

Edit /etc/default/eeepc-acpi.local , and replace BUS_MODE="STANDARD" with BUS_MODE="SHE"
See if that fixes it.

I applied the modification and tried 5 consecutive suspend-repeat cycles with some application loading in between. I could no longer reproduce the problem. I'm very happy now and hopeful that this helped. Please send best regards to the Eeebuntu team, it has brought the computer to a completely new level of usefulness! I will report back if the problem still appears, as said it's not deterministic.

The freezing problem has continued, I'm investigating it. Is kern.log the log I should be looking at?

Could this be the problem?

Oct 22 07:52:49 palsa-eeepc kernel: [ 928.756532] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0

Now I think the problem is somehow related to graphics on the device, today when I started to resume from hibernation, graphics went completely crazy.

That second part definitely sounds like the SHE error, which you've already corrected...

The first error is an X error, however, and I never had problems with suspend resume without SHE. Is it possible that X is crashing as well? I don't have a solution for that, but it seems likely.

The last log lines before death are:

PM: resume devices took 2.048 seconds
Restarting tasks ... done.

And then the system dies.