Maybe you can try? You must use version 184.108.40.20671 of the Intel drivers, the newer ones(220.127.116.1165) will give an error on the HD Control panel. I think it will be better to uninstall the actual graphics driver first before installing the 18.104.22.16871.
No, I created a custom install of 8.1 and it's flawless. All of the connection and power management issues are gone for me.
Edit: I just read your thread about the display issue, I didn't understand you completely here, the issue IS there on mine also.