Comment 24 for bug 642792

If alt+prscr is really rendering a sysrq event, it would appear that sysrq is not a bindable event. I can't get it to show up in anything (including xev).

While I can see the technical argument for making alt trigger the alternate key, the solution in the latest kernel is at least 10 years too late. There is too much documentation and too much "known behaviour" to try (or want) to reverse things now without upsetting everybody who expects a windowshot from an alt+prscr combo.

It's also well known that if you want sysrq, you use control+alt+prscr. I assume this key-combo is also broken now (or it renders as control+sysrq).

Everything about this stinks to me and I think we should fight upstream all the way on this, disabling the new kernel configuration by default.