T-Deck-plus / T-deck plus touchscreen unresponsive or laggy: a solution

[mariotti]

Hoi all,

I write this to save you from long searches on the net. Let me write few keywords first:

t-deck, t-deck-plus, t-deck plus, touch, touchscreen, calibration, capacitive.

Please add your search keys in comments or the like.

The main issue is that the t-deck-plus presents a very laggy, unresponsive behaviour.
Something very difficult to even report, in my case I had it working nicely for first touches.
I started to question if it was an hardware issue.

But here the solution!

Apparently there is an HW (hardware) issue with some T-Deck plus versions. (old?)
This was originally discussed here:

Xinyuan-LilyGO/T-Deck#42

There, it is presented a solution which might not work today.

But if you check this repo: https://github.com/Xinyuan-LilyGO/T-Deck

You will find some niche files here:

https://github.com/Xinyuan-LilyGO/T-Deck/tree/master/firmware

Please read the README for more details.

The basic solution is to flash first one of the fixing firmware, then flash your
preferred firmware.

For Windows users, I hope that the instructions in the README will work. :)
(sorry I cannot check this, not a win user)

For Mac users, I had no command line way to flash the .bin from the repo.
So I used

https://espressif.github.io/esptool-js/

And flashing:

https://github.com/Xinyuan-LilyGO/T-Deck/blob/master/firmware/T-Deck-Plus-TouchFix_241203.bin

This will fix it, and it should work also for Win users.

NOTES:

It is not that obvious on which versions of the t-deck plus this is required.

Please also check:
#5432

Q part

Please let me know if this worked.

Please let us know if you have different solutions.

Please let us know if there are related issues.

[mariotti]

The idea is to close this discussion asap, and just make it available for the search engines :) But I keep it open for a while just to be sure ...