@Phillip Susi: That was a really interesting hint! Here are my results using
sudo sh -c "echo 'core' > /sys/power/pm_test"
1. GPU present (with Nvidia driver), fans kept running and machine was stuck (no ping, no keyboard, no video signal). dmesg after reboot: http://pastebin.com/wpmxaU3C
2. No GPU present (but Nvidia driver still installed), it correctly suspended and resumed after a few seconds.
dmesg: http://pastebin.com/UMt1aj2q
3. GPU present (Nvidia driver removed, nouveau driver installed), it correctly suspended and resumed after a few seconds.
dmesg: http://pastebin.com/wC6VitEc
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4. no echo "core"
GPU present, Nvidia driver removed, nouveau driver installed, regular pm-suspend ---> machine stuck and multiple reboots
@Phillip Susi: That was a really interesting hint! Here are my results using
sudo sh -c "echo 'core' > /sys/power/pm_test"
1. GPU present (with Nvidia driver), fans kept running and machine was stuck (no ping, no keyboard, no video signal). dmesg after reboot: pastebin. com/wpmxaU3C
http://
2. No GPU present (but Nvidia driver still installed), it correctly suspended and resumed after a few seconds. pastebin. com/UMt1aj2q
dmesg:
http://
3. GPU present (Nvidia driver removed, nouveau driver installed), it correctly suspended and resumed after a few seconds. pastebin. com/wC6VitEc
dmesg:
http://
------
4. no echo "core"
GPU present, Nvidia driver removed, nouveau driver installed, regular pm-suspend ---> machine stuck and multiple reboots