Hi unix25, thanks a lot. But, looks like your touchscreen chip is not Synaptics, I don't know if the solution apply to SiS' chip.
I got a new way to test. # cat /etc/modprobe.d/usbhid.conf options usbhid quirks=0x06cb:0x0af8:0x20000000 # sudo update-initramfs -u # sudo reboot Remember to correct the id, ex. options usbhid quirks=0x06cb:0x1d10:0x20000000 or options usbhid quirks=0x0457:0x1013:0x20000000 The quirk means do no send the init commands which may not supported by Synaptics, #define HID_QUIRK_NO_INIT_REPORTS 0x20000000 I need your ack to include the usb id into the quirk, thanks. -- 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
