Comment 2 for bug 437607

More information: when Xorg is consuming CPU on the first login, when I switch to another VT, the VT switches immediately back to X. I also cannot use the "Switch to another user" feature. Like so:

1. Ctrl+Alt+SysRQ+R (release keyboard)
2. Alt+F1 (switch VT)
3. In a fraction of a second, VT switches back to X. VT1 only flashes by.

This does not happen on the second login: there, VT stays at VT1 and does not switch back by itself.
Is it possible that part of Xorg is running in some busy-loop, constantly switching the VT?

I cannot easily attach a gdb to Xorg due to the VT problem. I may try setting up some ssh setup later on.