Comment 1 for bug 158488

Same problem for me on the 7.10 RC, changing resolution from 1280x1024 to 1024x768 it just activate virtual size 1024x768 on a virtual 1280x1024 display.
I tried to modify xorg.conf manual putting option in section screen => Virtual "1024x768" to force the resolution, but something went wrong with an alt+tab.
Actually system hang completly no way to use ctrl+F1 tty after a hard reboot same thing, i guess i'm going to use single mode to switch to ancien xorg.conf.