Using wireshark to monitor the usb traffic, we'll find the touchscreen becomes abnormal after systems sends the IDLE command to it. But the touchscreen could revive after sending some other commands, such as GET_DESCRIPTOR.
I'll build a test driver soon, but I need to build a list for the affected usb id. On this bug, there are 2 IDs 06cb:1d10 and mine is 06cb:0af8 Please reply if your borken touchscreen ID is not listed above. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-input-evdev in Ubuntu. https://bugs.launchpad.net/bugs/1180881 Title: Touchscreen only works after suspend/resume on Lenovo ideapad P400 Touch Status in “xserver-xorg-input-evdev” package in Ubuntu: In Progress Bug description: Touchscreen is unresponsive on fresh 13.04 Ubuntu installation. All other devices work. Touchscreen shows as working and 'states' are correct for any xinput --list off of a cold boot. However, if I (at any point) "Suspend" the system, then awaken it, the Touchscreen immediately functions properly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/1180881/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
