Here is the log when booting with acer-wmi enabled. Excerpt to see the timejump:
[ 3.299234] usbhid: USB HID core driver [ 3.309750] fbcon: inteldrmfb (fb0) is primary device [ 3.400884] acer_wmi: Acer Laptop ACPI-WMI Extras [ 3.403879] ACPI: EC: GPE storm detected(26 GPEs), transactions will use polling mode [ 13.937332] acer_wmi: Function bitmap for Communication Device: 0x10 [ 13.937899] acer_wmi: Brightness must be controlled by acpi video driver [ 13.938284] input: Acer BMA150 accelerometer as /devices/virtual/input/input4 [ 24.475615] Console: switching to colour frame buffer device 200x56 ** Attachment added: "dmesg log when booting with acer-wmi enabled" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1262797/+attachment/3932691/+files/boot_with_module_enabled.dmesg -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1262797 Title: acer-wmi module hangs laptop for 10 seconds on boot/modprobe Status in “linux” package in Ubuntu: New Bug description: I have a Acer Aspire 7740, and noticed after installing that Ubuntu 13.10 (kernel 3.11.0-14) hangs for 10 seconds early in the boot process. It continues after that. The screen freezes and the fans start spinning very hard. The last dmesg line before the pause is a info message about acer-wmi. I blacklisted acer-wmi in /etc/modprobe.d/blacklist.conf and updated initramfs. Now ubuntu boots as it should without hanging. No functionality appears to be lost. Bluetooth and wifi work, also the volume keys. When modprobing this module after boot the same symptoms occur. Ubuntu hangs, and reacts normally after 10 seconds. So, clearly something is wrong with acer-wmi. Maybe it should not be loaded with this laptop version, or it has a bug in it. I will add a dmesg from a boot with acer-wmi enabled. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1262797/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
