I've spent so many hours trying to get HiDPI working with Linux and have returned two machines to Dell (thankfully their 30 day no quibble return saved me twice

I've spent so many hours trying to get HiDPI working with Linux and have returned two machines to Dell (thankfully their 30 day no quibble return saved me twice). I do a fair bit of image editing and the GIMP is unusable and lots of older X classics that are unlikely to be updated. Until HiDPI issues are resolved I can't use Linux on the desktop on a daily basis.