I have not seen this problem on Arch yet. It has been only few weeks since I installed it on my z580 so I will wait few more weeks and I will report back. Kernel I'm using is stock vanilla Arch with no customization on my end.
-->uname -a Linux z580 3.11.6-1-ARCH #1 SMP PREEMPT Fri Oct 18 23:22:36 CEST 2013 x86_64 GNU/Linux -->dmesg | grep Z580 [ 0.000000] DMI: LENOVO IdeaPad Z580 /Lenovo , BIOS 5FCN89WW 08/27/2012 -->dmesg | grep DSDT [ 0.000000] ACPI: DSDT 00000000daff1000 0AD57 (v02 LENOVO IVB-CPT 00000000 INTL 20061109) [ 0.144683] ACPI: EC: Look up EC in DSDT -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1093217 Title: 8086:0166 [Lenovo IdeaPad Z580] 12.04-13.10 10-20min boot delay (From 3.2.0.29->3.12-rc2) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1093217/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs