Trying to test with vanilla Xorg by stopping gdm3 and using Xorg by itself:
0. Install xterm since we are going to use it later. 1. Switch to tty3 by using Ctrl-Alt-F3 sudo systemctl stop gdm3 sudo Xorg & DISPLAY=:0 xterm 2. Switch to blank Xorg session using Ctrl-Alt-F1, then in xterm run xev Check touchscreen function: the cursor should follow the touch screen, and if touching the xev test region, xterm should display some messages. 3. Switch xev to background by Ctrl-Z then bg command, then suspend system: systemctl suspend 4. Resume after a while and check touchscreen On one of our DUTs, the issue is not reproducible with the above configurations. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-libinput in Ubuntu. https://bugs.launchpad.net/bugs/2087831 Title: touchscreen has no response after resume from suspend in Xorg session To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/2087831/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
