I have faced issues with Intel HD graphics adapter detection in lenova laptop.
Basically the adapter was not detected properly and it was showing "Unknown monitor" display in fedora 13.
I was able to fix this, by the following steps.
1. Remove the word nomodeset in grub.conf present in /etc directory.
2. move the file xorg.conf present in /etc/X11/ to xorg.conf.backup (basically xorg.conf should no longer be used).
just restart the machine. Now you should be able to change the resolution and the adapter will be detected properly.
Note:
You need this only if you face any issues while starting GUI.
If in case you face any issues with X (GUI)starting properly, restart the machine manually and boot in "single user mode" just undo the above mentioned steps.
for single user mode refer :http://www.fedorafaq.org/basics/#runlevel