I have the same Asus X550LC laptop with Ubuntu 14.04. Have you tried updating the BIOS of your system http://www.asus.com/Notebooks_Ultrabooks/X550LC/HelpDesk_Download/
I have the same Asus X550LC laptop with Ubuntu 14.04. Have you tried updating the BIOS of your system www.asus. com/Notebooks_ Ultrabooks/ X550LC/ HelpDesk_ Download/
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