[SOLVED] System froze and won't boot.

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https://bbs.archlinux.org – ontobelli wrote:Kernel 3.7.0 + laptop-mode-tools are freezing the laptop when switching from battery to A/C.As a workaround uninstall laptop-mode-tools until problem is fixed.Indeed this was the cause.Anyway I've manage to solve it, here is the steps:1) Boot a live cd2) Set up and enter a chroot according to https://bbs.archlinux.org/viewtopic.php?id=1546253) Disable [testing] from /etc/pacman.conf 4) Run:pacman -Syyf util-linux pacman -Syyf linux linux-headersI got som wierd errors at first which was gone after reinstalled util-linux.And to get rid of the cause:pacman -R laptop-mode-tool (HowTos)