Airtop2 running on embedded GPU is flickering/bad display on Linux

From fit-PC wiki
Jump to: navigation, search
  • The following document applies to Airtop2 running Linux, with embedded display output.
  • The solution has been tested on the following system:
Device: Airtop2
CPU: Intel(R) Xeon(R) CPU E3-1275 v6
BIOS: 04/17/2018 American Megatrends Inc. 5.12_ATOP2.PRD.0.45.2 EFI
OS: Linux Mint 19 Tara
Kernel: 4.15.0-23-generic


  • Add kernel parameter "intel_idle.max_cstate=4" to the kernel boot line.
    • Edit /etc/default/grub as root, for example: sudo nano /etc/default/grub
    • Add intel_idle.max_cstate=4, it should look like this: GRUB_CMDLINE_LINUX="intel_idle.max_cstate=4"
    • Save the file and close the editor
    • Run sudo update-grub2 to regenerate the grub config files

Note: If you need to boot from LiveUSB you will need to add "intel_idle.max_cstate=4" to the kernel boot line manually. For example on LinuxMint you need to press "e" to edit kernel boot line from the GRUB menu.