It turns out that after thoroughly testing the new laptop I got a few months back for hardware compatibility issues with Linux, there was one thing I forgot to check: the built-in SD card reader slot. And of course, it happens to be the one thing that doesn't work out of the box (aside from Nvidia's Optimus, but I'll save my rant on that topic for another day). However, it turns out that Realtek does distribute source code for their out-of-tree rts5229 kernel module, which is used by my laptop's SD card reader, so luckily enough it didn't take me …