This thread seemed to peter out! I have a 1.8" TFT LCD Color Display Module SPI ST7735S working with Zynthian which has a resolution of 128 x 160. Adjusting the font allows list content to (mostly) be seen okay but rotary parameter graphic does not render well. I would say that such a low resolution undermines the effectiveness of Zynthian. It will work but is a bit irksome. There may be something we can do to optimise for smaller screens but it might not be worth it! (Maybe use a different representation of value of parameters if the resolution is detected to be below a certain threshold.) I am going to purchase a larger screen and am just toying between 3.5", 5" and 7". I quite like the idea of a large capacitive touchscreen for X-Y performance (but not in the cold without special gloves 
) but have read in another thread that it may prove challenging for mounting, connecting, etc. (I bought a Kedei (read crap) screen for this project which was a mistake - I am getting quite a collection of useless screens!) I do have some 128 x 64 OLED screens but wouldn’t think it worth the effort trying to get X server running on these.
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