This happens identically with both Thinkpad T410 models (intel integrated graphics, nvidia discrete graphics). The first suspend/resume completes successfully. The second suspend appears to work, but when waking, a few LEDs flicker, but the laptop stays suspended (moon LED on the lid stays lit, LED around power button continues to pulse). Pressing the power button again causes a reboot (no other buttons seem to do anything in this state).
This happens identically with both Thinkpad T410 models (intel integrated graphics, nvidia discrete graphics). The first suspend/resume completes successfully. The second suspend appears to work, but when waking, a few LEDs flicker, but the laptop stays suspended (moon LED on the lid stays lit, LED around power button continues to pulse). Pressing the power button again causes a reboot (no other buttons seem to do anything in this state).
Per https:/ /wiki.ubuntu. com/DebuggingKe rnelSuspend:
$ grep -A4 Magic .tmp/dmesg.txt buildd/ linux-2. 6.32/drivers/ base/power/ main.c: 471
[ 1.148585] Magic number: 0:523:347
[ 1.148587] hash matches /build/
[ 1.148615] pci0000:00: hash matches
That's the DRAM Controller.
Same results from the "xterm" session, and also without X, so no gnome-power-manager interactions.