My Thinkpad T61p consistently refuses to resume after I suspend it to RAM by closing the lid. It seems to be partly working (LEDs blinking, hard disk light flashing occasionally, including when I press the ACPI power off button) and there is dmesg output to suggest that too. The screen seems to be completely dead, I am unable to ssh into the machine (I have also tried connecting an ethernet cable - there was an "ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready" message in dmesg, but my router did not show an IP for it, just the fact that the cable was connected, and trying a large range of IPs at random didn't help either).
I am using the "nv" graphics driver, not the closed source one. I also use VirtualBox, but removing it completely (kernel drivers gone), rebooting and then suspending doesn't change the symptoms.
Any suggestions as to how I can debug this?
Mar 3 16:34:10 michael-laptop kernel: [ 0.000000] Linux version 2.6.31-19-generic as per the dmesg output attached above.