Problem with multi-touch screen when lid is closed

I have a T400s with the MT screen, running a clean installed Win 7 32-bit and all latest Lenovo drivers/BIOS.
I use external screen/keyboard/mouse at work so I am used to have the lid closed. I set in power management in the way that closing the lid does not do anything (e.g., sleep or hibernate).
The problem is: when the lid is fully closed and external mouse is used, the mouse cursor randomly moves and clicks. When random clicks happen, I can see the finger-tap animation near the cursor on the external screen, suggesting that the MT screen receives input even when the lid is closed! It might be heat from the palm rest/keyboard area causing fake taps.
Leaving the lid slightly open (like 15 degrees) solves this problem.
EDIT 1: another clue of the above problem is that while the lid is closed, Windows 7's tablet input panel shows up on the left edge, which typically appears after a tap or a tablet pen gets close to the screen. I also noticed that the random clicks take place near the right edge of the screen.
Solved!
Go to Solution.

@ wesleyyin,
certainly strange. Some questions to help with the diagnostics;
Which TrackPoint cap you you have on your keyboard, soft domed, soft rim or classic domed (the hairy one)?
Can you try disabling the TrackPoint to see the problem goes away?
Anything else laid on top of the system or between screen and keyboard like a thin cloth or something?
Thanks
Andy ______________________________________
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@ wesleyyin,
certainly strange. Some questions to help with the diagnostics;
Which TrackPoint cap you you have on your keyboard, soft domed, soft rim or classic domed (the hairy one)?
Can you try disabling the TrackPoint to see the problem goes away?
Anything else laid on top of the system or between screen and keyboard like a thin cloth or something?
Thanks
Andy ______________________________________
Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
Did you find a post helpfull? You can thank the member by clicking on the star to the left awarding them Kudos Please add your type, model number and OS to your signature, it helps to help you. Forum Search Option T430 2347-G7U W8 x64, Yoga 10 HD+, Tablet 1838-2BG, T61p 6460-67G W7 x64, T43p 2668-G2G XP, T23 2647-9LG XP, plus a few more. FYI Unsolicited Personal Messages will be ignored.
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Serious Problems with Iphone Touch Screen

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hi sishio,
From your observation, it looks like the Touchscreen is malfunctioning.
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If the problem gets fixed, you may need to contact lenovo and report your findings as you may need to send the unit for service.
Support phone list
Regards
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Multi-touch screen not recognized

I have a brand new W510 configured with Windows Ultimate x64.
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I'm starting to think that there is a loose connection internally between the multi-touch device controller for the screen and the USB connector, but all of the other device drivers for the W510/Windows 7 x64 combination seem buggy enough that I can't rule out a really buggy driver.
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{36fc9e60-c465-11cf-8056-444553540000}
{36fc9e60-c465-11cf-8056-444553540000}\0009
Port_#0008.Hub_#0004
\Device\USBPDO-7
{9d7debbc-c85d-11d1-9eb4-006008c3a19a} (bus type guid)
00000008 - address
PCIROOT(0)#PCI(1D00)#USBROOT(0)#USB(1)#USB(8) - location paths
USB\VID_0000&PID_0000\6&94BCF13&0&8 - device instance path
USB\VID_8087&PID_0020\5&43cf376&0&1 - parent
USB\VID_17EF&PID_1003\6&94bcf13&0&5 - siblings
usb.inf:Generic.Section.NTamd64:BADDEVICE.Dev:6.1.7600.20589:usb\unknown - driver node strong name
{36fc9e60-c465-11cf-8056-444553540000}{36fc9e60-c465-11cf-8056-444553540000}\0009Port_#0008.Hub_#0004\Device\USBPDO-7{9d7debbc-c85d-11d1-9eb4-006008c3a19a} (bus type guid)00000008 - addressPCIROOT(0)#PCI(1D00)#USBROOT(0)#USB(1)#USB(8) - location pathsUSB\VID_0000&PID_0000\6&94BCF13&0&8 - device instance pathUSB\VID_8087&PID_0020\5&43cf376&0&1 - parentUSB\VID_17EF&PID_1003\6&94bcf13&0&5 - siblingsusb.inf:Generic.Section.NTamd64:BADDEVICE.Dev:6.1.7600.20589:usb\unknown - driver node strong name
Early on I had a problem earlier with the NEC USB 3.0 Host Controller driver, but the Windows 7 troubleshooter fixed that. Looking at its log, it looks like it also temporarily fixed the problem with the touch screen USB connection, and that was before I took the steps I outlined above. Here is the output from that:
Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34 has a driver problem Fixed
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Device information
Name: Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34
ID: PCI\VEN_8086&DEV_3B34&SUBSYS_216317AA&REV_06\3&E89B380&0&E8
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Reinstall device driver Completed
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Signature goes here.

I would have loved to try the Fn + F6 test, but the machine stopped getting past POST, so I can't even get to the BIOS. The machine just gives the feel that the bios and a lot of the drivers were pushed to production too early, and still behave a bit like beta-phase software. My plan is to return the W510 (which I really liked for the few moments it was working) and wait probably six months, then order it again. By then I hope they will have the drivers and bios issues corrected. There may also be hardware issues (they had trouble with long ship dates, so I wouldn't be surprised if some of the hardware was also not ready for mass production). Either way, six months is plenty of time for Lenovo to get it all together.
You would think that this experience would sour me on Lenovo, but (absent some surprise in the refund process), I have to say that Lenovo handled this very well. They apologized, acknowledged that in my position they might well feel the same way, took responsibility for the problem (including paying for return shipping and arranging UPS pickup) and promised a full refund. They treated me like they view customers as assets, not annoyances. Despite my bad experience with the hardware, my experience with the company was sufficiently positive that overall, my chances of order from them again are higher now than they were before this incident.
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Signature goes here.

Connect to multi touch screen

Dear,
I would like to connect flash 8 with multi touch screen which
is not like single touch screen (use same event with mouse). The
multi touch screen (iNexio) sent me the API (or SDK). There are 4
files; CSharedStruct.h, inexio_multi.h, multiDLL.dll, multiDll.lib,
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Can anyone suggest me how to do it (step-by-step please)? If
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Thank you very much in advance.

DO you mean multi monitor support
If so please read
http://www.flashjester.com/?section=faq&cPath=14_68#300
Regards
FlashJester Support Team
e. - [email protected]
w. - www.flashjester.com
"This has been one of the most impressive and thoroughly
pleasant
experiences of customer support I have ever come across -
astounding!"
Director - hedgeapple

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Problem with multi-touch screen when lid is closed

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