To compare, Linux kernel had recently a significant problem by which a lot of the users of Ubuntu 18.04 LTS were affected. It was related to the use of the DPMS

To compare, Linux kernel had recently a significant problem by which a lot of the users of Ubuntu 18.04 LTS were affected. It was related to the use of the DPMS signaling, standard for which exists since 2003, if I understand correctly: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813663 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813663 Programming for real hardware is simply harder than the most can imagine.