USB Headset sometimes is detected at boot, sometimes not

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https://bbs.archlinux.org – I have a Plantronics GameCom 780 that works fine on Fedora 19. On Arch, about 50% of the time it is not detected during boot.dmesg when detected:http://pastebin.com/dxmQ9yZcdmesg when not detected:http://pastebin.com/R9B2R0HUI'm using ALSA and checking the device with aplay -l. SlaveJobs https://bbs.archlinux.org/profile.php?id=76291 2013-10-28T00:46:04Z (HowTos)