I tried putting the calibration stuff in /etc/X11/xorg.conf.d/99-screen-calibration.conf ( I also tried /usr/share/X11... etc once the machine starts you can get the properties and see the calibration is what was set by the conf file. The when you do the map-to-output put it back to some other values.
Ta Mal ----- Original Message ----- From: Peter Hutterer (peter.hutte...@who-t.net) Date: 14/03/19 22:40 To: malcolm moore (st-malcolm.mo...@whsg.info) Cc: xorg@lists.x.org Subject: Re: Confusing interactions between xinput mapping and xinput set-prop On Thu, Mar 14, 2019 at 10:59:06AM +0000, malcolm moore wrote: > If I use xinput set-prop to change the calibration matrix ( because I am > trying to use a SmartBoard as a second touch screen which are notoriously > inaccurate ) I can set the values to whatever I like. So far so good, but > then I have to do the xinput --map-to-output to tell the machine where the > touch is coming from. This resets the values I first set. If I do the > xinput --map-to-output first the xinput set-prop resets that. How do I do > both you can't. map-to-output is a convenience helper because it's the prime use-case for the calibration matrix and in the end writing map-to-output was more efficient than explaning how to set the calibration matrix to every user that filed a bug report. If your touchscreen needs calibration *and* screen mapping, you need to manually calculate the matrix and then set it directly. Cheers, Peter
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