Hi, I too have one of these monitors. In 13.04 touching the screen causes a constant high spike of CPU usage. I get this output from dmesg after it happens:
[48446.210074] usb 3-1: reset high-speed USB device number 2 using xhci_hcd [48446.229560] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001376b440 [48446.229569] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001376b480 [48446.229583] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001376b4c0 [48446.229585] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880146294340 [48446.229588] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880146294300 Curiously, lsusb also comes out with: Bus 002 Device 005: ID 1fd2:0064 <- no more information - this looks like a regression as I recall in 11.04 (or thereabouts) lsusb listed this as 'LG display multitouch' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/791833 Title: Dell ST2220T Monitor responds to touch only on warm boot from windows To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/791833/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
