now I edited line during boot acpi_osi="!Windows 2012" and it later displayed tsc calibration error ----- /proc/cmdline ----- BOOT_IMAGE=/boot/vmlinuz-3.16.6-2-desktop root=UUID=0e607896-86c9-45ab-9216-68f72fdc8b1d resume=/dev/sda1 splash=silent quiet showopts "acpi_osi=!Windows 2012" ----- /proc/cmdline end -----