How to initialize touchscreen without launching X server?
by witherornot from LinuxQuestions.org on (#5BDBF)
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)
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)