[engolling]

I have the same one received for my WheatherDuino. There is the HR2046 installed.
Is this the right chip?

Its not only the question of the chip, theoretically the HR2046 is equivalent to XPT2046. The most important is that on some of those called "new displays", the touch panel is installed in a different position (see pictures on first post) which give different touch coordinates.
Still its easy to find and order the correct type of display, in case of doubt carefully check the item pictures and ask the seller if it send an item exactly as pictured. In case the seller sends another display version, the previous procedure allows you to open a case in eBay and most likely eBay will decide in your favour, as sellers have the obligation to keep the product pictures updated.

I just started up my RX PCB for the first time. The display is working, but as already feared, the touch is - I think -  mirrored.
Initially I thought I bought the right one, because the pictures are very similar.

So I will try to adjust coordinates tomorrow. I think the error is methodical, so it should be not a big deal... hopefully

Regards, engolling