Waveshare 3.5 b v2

Hi.
The calibration matrix is not well formed.
They are regular spaces between each digit.

After having your modification done, you just have to restart zynthian ui (NO reboot needed) with
systemctl restart zynthian

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Thanks @le51

I tried for the 270º and 90º but with no luck.
once the horizontal axis was correct but the vertical was still inverted, after doing the calibration tool it went back to both axis inverted.
I will re-flash the SD cart and try again.

zynth2222

Also for going further, some debugging info could be helpfull:

like result of:

  • dmesg command (but I think it should be okay)
  • content of /var/log/Xorg.0.log file
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thanks again @le51

didn’t change nothing, after re-flashing the SD started with the horizontal axis ok, tried the Option “CalibrationMatrix” “0 -1 1 1 0 0 0 0 1”, then after calibration tool with vnc both axis inverted.

I see in Xorg.0.log that there is a first Option TransformationMatrix wich doesn’t match with the one you have provided in 40-libinput.conf

have a look at each of the file located In /etc/X11/xorg.conf.d and /usr/share/X11/xorg.conf.d to see if there is not some conflicts …

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so i changed both to be the same, no change, then deleted the the transformeMatrix option on 99-calibration.conf left the 40-libinput.conf, no change, then switch and no change again



:triumph:

these displays are evil !

yes!! but it was working before. maybe it’s the touchpad is broken

thanks for all the support