To be honest, I just turn the resolution down at the graphics card level. Gives me slightly more blurry pixels at my Thinkpad X1 13" HiDPI display, but I am not

To be honest, I just turn the resolution down at the graphics card level. Gives me slightly more blurry pixels at my Thinkpad X1 13" HiDPI display, but I am not able to tell apart pixels at that insane resolution anyway. Side effect: It is computationally cheap and of course no compatibility problems with GTK/Qt/X11 to expect.