I used to have ubuntu 16.04 lts . Now I have 18.04 lts . In 16.04 when I disabled wifi , that option was preserved after shutdown and boot . Now in 18.04 lts if I disable wifi the option is not preserved . Hence the problem is not due to my G505s lenovo laptop . I know that airplane mode disables more than just wifi and I prefer that mode for personal reasons . I have searched in the internet and have not find anything helpful . I would like to know how to preserve airplane mode in 18.04 lts .

  • An off topic solution for me was just going to bios of my lenovo g505s laptop and disabling wireless . Like that the airplane mode is preserved ( since the laptop does not have bluetooth ) . – liaguridio May 31 at 16:11

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