TOC    Preamble Studying the Libreboot log Studying the FreeBSD dmesg log Removing non-existent battery Replacing iwm driver with iwlwifi Turning off unnecessary USB devices Results Preamble Since I took my laptop (Thinkpad X220) from the shelf, hacked it, and installed FreeBSD 14.2 and Coreboot on it — I found that suspend/resume times are longer than before. When I was using this laptop with FreeBSD 11 and proprietary BIOS — it was suspending slightly faster. And resuming almost immediately — I was able to open the lid and the computer become usable immediately.