On the fifth trace suspend I got the picture back on screen but the computer totally froze, not even REISUB would restart it. This is a bit different from when I close the laptop lid because then the computer keeps working but I get a black screen until I restart lightdm. Attached is the dmesg output after that hang, perhaps it can help.
I do find this which seems to be similar to what I'd expect to find according to the resume t race instructions in your link. [ 2.072557] Magic number: 0:381:403 [ 2.072562] hash matches /home/apw/COD/linux/drivers/base/power/main.c:803 [ 2.072608] power_supply BAT0: hash matches ** Attachment added: "dmesg after computer hanged after resum." https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1327110/+attachment/4126934/+files/dmesg-afterhang.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1327110 Title: [Dell Latitude D420] Black screen after resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1327110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
