Unrelated to this bug, I have also discovered that alt+sysreq RIE are all disabled for the mainline and trusty 'head' kernel (3.13.0-20-generic) by default:
Also, if I suspend while the focus is on tty1 ( a text console ) rather than tty7 (GUI), the text console operates fine when I resume from pm-suspend until I switch back to tty7. At that point the system locks up again.
Unrelated to this bug, I have also discovered that alt+sysreq RIE are all disabled for the mainline and trusty 'head' kernel (3.13.0-20-generic) by default:
cat /proc/sys/ kernel/ sysrq
176
Mentioned here: /bugs.launchpad .net/ubuntu/ +source/ procps/ +bug/1025467
https:/
Also, if I suspend while the focus is on tty1 ( a text console ) rather than tty7 (GUI), the text console operates fine when I resume from pm-suspend until I switch back to tty7. At that point the system locks up again.