Ugh... <sarcasm>What's absolutely *awesome* is that there is apparently also a bug in Ubuntu that prevents ALT+SysRq+K from working, even though ALT+SysRq+REISUB does work!!</sarcasm> See here: https://bugs.launchpad.net/ubuntu/+bug/329644
So, unless the bug doesn't apply to you (you can test it while your X server is not frozen), you can't test what I suggested. I'm trying to get ALT+SysRq+K to work as it should, but until I can do that, I can't test it either. :-/ This is extremely annoying.
Ugh... <sarcasm>What's absolutely *awesome* is that there is apparently also a bug in Ubuntu that prevents ALT+SysRq+K from working, even though ALT+SysRq+REISUB does work!!</sarcasm> See here: https:/ /bugs.launchpad .net/ubuntu/ +bug/329644
So, unless the bug doesn't apply to you (you can test it while your X server is not frozen), you can't test what I suggested. I'm trying to get ALT+SysRq+K to work as it should, but until I can do that, I can't test it either. :-/ This is extremely annoying.