ctrl-alt-+ and ctrl-alt-- zooming is broken in xorg-server 1.1.1 it seems. this is xorg bug 7097: https://bugs.freedesktop.org/show_bug.cgi?id=7097 the patch doesn't apply cleanly to xorg-server 1.1.1 however...it seems its a simple fix, i will be testing this shortly to see if it solves the problem...i'll post my modified patch if it works.
Created attachment 95903 [details, diff] modified patch this is a modified version of the patch from the xorg bug, just had to change one line so that it applies correctly now. This fixes the problem for me.
This should also go into the upcoming revision bump for aiglx and libxf86config.
Created attachment 96108 [details, diff] 1.1.1-fix-xrandr-zoom-keys.patch This one provides strcasecmp.c so it builds.
This is fixed in 1.1.1-r1, which we'll unmask once mesa 6.5.1 is released.