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Old 12-08-2020, 04:32 PM   #1
witherornot
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How to initialize touchscreen without launching X server?


Hello all.

I'm currently trying to port postmarketOS to the LG Gpad 7. All is going well, except for one small bug that's really annoying me.

Before launching an X server, the touchscreen does not send any events, even when using evtest and reading directly from the input device (eg. "cat /dev/input/event1"). However, after launching an X server, the touchscreen springs to life, even after the X server dies.

My conclusion is that the X server performs some kind of hardware initialization, and I would like to know if there is some way to do this initialization without running an X server so I can use it with Wayland.

Relevant logs: (elogind error is a bug that I am keeping to test display servers)

Xorg: https://pastebin.com/SjxKJT5V
Weston: https://pastebin.com/kJdLCmCR
Dmesg: https://pastebin.com/JFfDWpvk

For reference for the hardware, this device is very similar to the Google Nexus 4.
Documentation: https://wiki.postmarketos.org/wiki/G...us_4_(lg-mako)

Last edited by witherornot; 12-08-2020 at 04:35 PM.
 
Old 12-09-2020, 02:14 PM   #2
ondoho
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You really have to talk to the Postmarket OS community about this.
 
  


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