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= Dell XPS 15 7590 = *Mostly copied from 15-9550 == Tested Hardware == * CPU: Intel(R) Core(TM) i9-9980HK * RAM: 32 GB * HDD: 1 TiB SSD * Screen: 15" 4k (3840✕2160) * Input: Touchscreen and trackpad. == Firmware Configuration == Not much tweaking of NixOS itself was needed. But we currently cannot automate the firmware setup, so this must be done by hand. === Before installation === These settings are needed both for booting the final install, and installer itself. Therefore, they must be done first. * ''Disable Secure Boot (but keep UEFI Boot).'' Thankfully doing so is as easy as changing any other simple setting. * ''Disable Intel hardware RAID and use AHCI instead.'' Intel doesn't seem to provide a working linux driver for this. (If you just have SSD it's pointless and just slows things down needlessly anyways.) === After installation === * ''Add systemd-boot to UEFI boot list.'' The (uneditable anyways) settings mapping drive UUIDs to HD* work fine. === Optional === * ''Update BIOS.'' According to Reddit, this helps with battery life. == Firmware updates == This device is supported by [https://fwupd.org/ fwupd]. You may use <code>fwupdmgr</code> to perform firmware updates. == Power management == Deep sleep is preferred to the default S2 sleep mode, in order to reduce battery draining during suspend. See https://wiki.archlinux.org/title/Dell_XPS_15_(7590)