I'm using x86_64 F12 on my dell inspiron 1440 laptop. My machine frequently freezes especially after suspending. Today, when i disabled the wireless connection, the machined friezed. I'm in deep trouble, somebody help me.
You can try setting nomodset as a kernel argument. Just hit e at startup and edit kernel line and ad modset at the end. If that works you can add it to your grub.conf. This has been found in most common bugs, https://fedoraproject.org/wiki/Common_F12_bugs. There are a few other suggestions there for this reaction, if the prior doesn't work for you.