[ubuntu] Ubuntu freeze during loading on dual booted lenovo system

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http://ubuntuforums.org – Hi, I am having trouble Dual booting Ubuntu 12.10 alongside windows 8 on my Lenovo Z580. I made some space for Ubuntu in win 8 and then used a live stick to install Ubuntu. Of course things were broken so I ran a live session from a live-stick and used "boot repair" this seemed to fix everything however after a few uses of Ubuntu and then a few uses of windows 8 Ubuntu broke and would only give a blank purple screen for upwards of 10 minutes. I have been through this rigmarole before and was hoping that recent advancements in boot-repair would solve my issues. No such luck so f (Hardware)