Comment 0 for bug 1498667

Sometime in the last month or so my touchscreen stopped working on my Toshiba P50W. The dmesg log shows it constantly reconnecting to it:

[ 556.407964] usb 1-4: new full-speed USB device number 119 using xhci_hcd
[ 556.538341] usb 1-4: New USB device found, idVendor=04f3, idProduct=0381
[ 556.538347] usb 1-4: New USB device strings: Mfr=4, Product=14, SerialNumber=0
[ 556.538349] usb 1-4: Product: Touchscreen
[ 556.538351] usb 1-4: Manufacturer: ELAN
[ 556.538505] usb 1-4: ep 0x2 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 556.547788] input: ELAN Touchscreen as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/0003:04F3:0381.04A1/input/input2374
[ 556.600478] hid-multitouch 0003:04F3:0381.04A1: input,hiddev0,hidraw4: USB HID v1.10 Device [ELAN Touchscreen] on usb-0000:00:14.0-4/input0
[ 556.600584] usb 1-4: USB disconnect, device number 119
[ 556.860456] usb 1-4: new full-speed USB device number 120 using xhci_hcd

[ 556.990494] usb 1-4: New USB device found, idVendor=04f3, idProduct=0381
[ 556.990500] usb 1-4: New USB device strings: Mfr=4, Product=14, SerialNumber=0
[ 556.990503] usb 1-4: Product: Touchscreen
[ 556.990506] usb 1-4: Manufacturer: ELAN
[ 556.990755] usb 1-4: ep 0x2 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 557.001248] input: ELAN Touchscreen as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/0003:04F3:0381.04A2/input/input2376
[ 557.002517] hid-multitouch 0003:04F3:0381.04A2: input,hiddev0,hidraw4: USB HID v1.10 Device [ELAN Touchscreen] on usb-0000:00:14.0-4/input0
[ 557.013831] usb 1-4: USB disconnect, device number 120

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-11-generic 4.2.0-11.13
ProcVersionSignature: Ubuntu 4.2.0-11.13-generic 4.2.1
Uname: Linux 4.2.0-11-generic x86_64
ApportVersion: 2.18.1-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: bob 2041 F.... pulseaudio
 /dev/snd/controlC0: bob 2041 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Sep 23 09:46:25 2015
HibernationDevice: RESUME=UUID=5033984a-21af-482d-a1fd-c075e818cd12
InstallationDate: Installed on 2013-12-26 (635 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: TOSHIBA Satellite P50W-B
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-11-generic root=UUID=885f0f10-b818-4eb4-8ff4-d067e16bef2f ro quiet splash nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-11-generic N/A
 linux-backports-modules-4.2.0-11-generic N/A
 linux-firmware 1.148
SourcePackage: linux
UpgradeStatus: Upgraded to wily on 2013-12-26 (635 days ago)
dmi.bios.date: 08/08/2014
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 1.40
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis ManuFacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: dmi:bvnINSYDECorp.:bvr1.40:bd08/08/2014:svnTOSHIBA:pnSatelliteP50W-B:pvrPSVP2A-00F002:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManuFacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: Satellite P50W-B
dmi.product.version: PSVP2A-00F002
dmi.sys.vendor: TOSHIBA