@spacedriver: thanks yes those are the parameters I needed to raise to boost luminance to a value higher than 115 but unsurprisingly the resulting image was pretty bad :) I didn't have much time to experiment with this yesterday though so I'll try to redo the whole process again and see if I can...
Hi, followed the steps and ended up with a useful calibration, thanks for you all your good work you put into this guide! There is just one thing nagging at me: it seems the screen is still capable of producing high luminance levels, at least during calibration it can do even 150 cd/m² or so...