My monitor, a Dell UP2715K, is one of the most unsupported pieces of hardware I've ever dealt with on Linux. It has been a nightmare. Nvidia graphics card support has caused me weeks of grief as well. So why have I kept it? Because when I finally got everything to work, I have become addicted to the quality of the text! I honestly can't work with other monitors now due to the low DPI looking like absolute crap. Apple has ruined me. Too bad no one else has stepped into the 5K monitor market.