Dell :: Unknown Device? ICH9M LPC Interface Controller - 2919

Apr 3, 2009

what could this be unknown device in device manager
"on Intel(R) ICH9M LPC Interface Controller - 2919"



HP/Compaq :: HDX16-1056CA ICH9M LPC Interface Controller2919

Feb 28, 2009

I have a HDX16-1056CA which I have downgraded to VISTA HOME PREMIUM 32BITS. Since then I see in my hardware configuration an exclamation at Intel(R) ICH9M LPC Interface Controller - 2919 I have search a driver for this, but can't find one. Does anybody have a similar problem? What is the Intel(R) ICH9M LPC Interface Controller - 2919 doing in this laptop?

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Dell :: Unknown Device :: Base System In Device Manager?

Mar 11, 2010

I got my new laptop today, and got rid of the installed Dell Crap and installed my Windows 7 Ultimate 64-bit.

Now under my Device Manager I've got two issues:

Base System
Base System

I contacted Dell, they said they won't support my laptop since I don't have their operating system on it. All I want to know is what drivers I need. I can't believe they couldn't let me know.

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Lenovo ThinkPad W Series :: Unknown Device In Device Manager After Win 8.1 Upgrade On W540

Aug 29, 2014

I'm using the W540 with an ultradock and external monitors. After upgrading my W540 to win8.1 64 bit, device manager is showing an unknown device. I'm not quite sure what it is, but almost everything seems to be working fine and Lenovo solution center isn't finding any driver updates.
I did notice that the solution center hardware scan did not test the video card memory and listed that test as N/A. Video and monitors seem to be working fine though and both nvidia and intel graphics show up in device manager.
Device manager lists the device in question as follows:
Device instance path: ROOTSYSTEM001
Hardware Ids: rootiwdbus
Device stack: DriverPnPManager

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HP Pavilion Dv5-1183cl OS/Software :: Missing Base System Device Drivers / Unknown Device / Battery Not Charging

Sep 7, 2014

I have an HP Pavilion dv5-1183cl that has been upgraded from Windows Vista to Windows 7 Ultimate (32bit) and I have some issues.I have four errors showing up in my device manager, three Base System Device and one Unknown Device, and I don't know what they are or where to get the drivers (since I don't know what they are). Additionally, the battery will not charge (there does not appear to be anything wrong with it physically). I am wondering if the below errors are related to the battery issue. Below are the hardware IDs for each error entry.
Base System Device (PCI bus 6, device 0, function 1):


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Sony :: VGN-AR51SU With A UNKNOWN Mulimedia Controller

Jan 8, 2010

I have a VGN-AR51SU. Only thing I need to do now is find out what the driver is for the UNKNOWN Mulimedia Controller = PCI bus 8, device 4, function 0

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Sony :: USB 1.1 On SZ..cant Find Unknown USB Device

Feb 19, 2010

i have a VGN-SZ4MN with Win7 installed.

I had this problem for a long time but when I bought an SZ off ebay,

i replaced the USB board and the USB ribbon hoping it would solve my USB problem, and it hasnt

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HP/Compaq :: Unknown Device Driver

Nov 7, 2009

had a pre-installed vista on my 6680ej and everything was fine, till i upgraded to windows 7. now i have an unknown device in device manager called Intel(R) ICH8M LPC Interface Controller - 2815 and i can't seem to find drivers for it.

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HP/Compaq :: Dv4-1435dx Unknown Device

Jul 28, 2009

after i did clean install my os, i got a driver call unknown device..i install all the driver even gpu and intel chip.. it still having this problem. i use the online dirver updated but nothing found... then i use online chat and ask them the problem but they couldn't give me an answer. now i am hopping you guy will know...

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HP 250 G2 OS/Software :: PCI / Unknown Device (code 28)

Aug 1, 2014

After installing Wind8.1 my Hp 250 G2 (FOY89EA#ABE) lost the PCI device and when I connect to HDMI or VGA, no picture is produced on the TV. How can I solve this problem?

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Dell :: Unknown Device On 1537 After Clean Install

Dec 28, 2008

I just finished doing a clean install of Vista SP1 on my new Studio 1537. Everything has gone well, however when I checked Device Manager I have one device with an exclamation mark next to it. When I clicked on the unknown device properties it tells me that it is "Intel(R) ICH9M LPC Interface Controller - 2919" I've looked all over Dell's Driver and Download site and I can't find the driver for this device nor do I know what category I should look under. When I contacted Dell's support they wanted me to unistall the device and overwrite my current BIOS version, A07, with an older version, A05. I decided that wasn't the best way so I thought I'd ask here hoping someone could help. After my install I loaded the drivers in the following order per Dell's directions: Notebook System Software, Chipset, Audio, Video, NIC Card, Dell Quickset, Wireless NIC, Touchpad. I didn't download and install the SATA drivers from Dell's website because my drive model isn't one of the ones listed for use with the driver. My drive is listed as a ST9320320AS. I'd appreciate any help someone can offer.

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Dell XPS 15 :: AC Adapter Type - Unknown Device Installed

Feb 27, 2013

I've got a XPS 15 (L511Z) which recently stopped charging the battery. It says plugged in but not charging when I hover the mouse over the battery icon. Luckily I've got an extended warranty and on contacting Dell they sent out a new charger. I plugged that in and the same result. In fact now when I boot the laptop it gives me an "The AC adapter plugged in cannot be determined" message.

Dell then asked me to buy a new battery since batteries are not covered in the warranty. Did that but still no luck. Am thinking that the original battery was ok to begin with anyway! Dell then asked me to update the BIOS but when I tried to with the update they gave me it failed, saying incompatible with the current hardware. 

I then ran the DELL Support Center utility which identified another BIOS update which updated successfully but then I noticed that it changed the Product to L501X now. The charging issue still persists though.I've sent a response back to Dell but based on what I've been reading on the forums it looks like the motherboard would have to be replaced.

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Dell Latitude E5540 :: Unknown Device Driver

Jan 8, 2015

I have been running in to an issue lately with a Latitude E5540 laptop. 

The specs are:

Intel i5 cpu @ 1.9 ghz
4 gb RAM
x32 Windows 7

In my device manager it says that I have an unknown device and there is the warning symbol next to it. When I go to update the drivers it says that it can't find any drivers (I am connected to the Internet). I looked at the hardware ID and noticed that it was APCISMO8810, I then proceeded to research the driver, which I found was the ST Microelectronics Free Fall Sensor Driver. I also know what it's primary function is. 

The issue I keep running in to is that I have uninstalled the driver, and tried to re-install the driver from the Dell downloads. However halfway through the process the install wizard tells me that the most recently updated driver from dells site is older than the driver I currently have installed. (even though it says there is no driver installed)

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Sony :: Windows 7 SZ4 32bit Unknown Device

Dec 18, 2009

just recently installed win7 x86 and everything seems to be working. I have one remaining unknown device under USB controllers and i am trying to figure out what it belongs to. my webcam works (although i think its listed as usb input device), and parser device, i/o device and texas mem stick have all been installed. i have also noticed that my fingerprint reader says that it is not connected when im first booting into windows although it works properly. could this unknown device have something to do with the reader?

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HP OS/Software :: 450 I3-4000M - Drivers For Unknown Device?

Nov 7, 2014

I purchased yesterday the HP 450 i3-4000M and after installing alla the necessary it seems that one device is not activated but is staed as "unknown device".
After trying to find ou the identity of this  device i found out the code name : ACPI/HPQ6007
I am trying to find the drivers for this device but it seems they are nowhere to be found..

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Acer :: Crystal Eye Webcam/Unknown Device - 5739g

May 23, 2010

I basically used my webcam every night with Skype to talk to my friends. The very next day, it stops working. Ive literally tried everything. In the device manager, I have an "Unknown Device" listed as a USB. Im 100% sure this use to be my Camera.

I just used the Acer factory CDs to reinstall my OS + Drivers. All the drivers were successfully installed with the exception of the Camera Drivers (because the computer doesnt see a camera)

I tried to download the drivers from the Acer website but (both Chicony and Suyin) and everytime I try to install them a error comes up that says "Camera not found!" I have a laptop so I have no clue how its not finding it.

ive been working on this for hours now and its really getting frustrating. Here are the things ive tried, and if someone knows a solution or a different method I havent tried to fix it, PLEASE let me know

My methods:

1. Reformatted computer using Acer recovery discs
2. Downloaded and tried to install drivers from acer website (camera not found problem)
3. Put windows in Safe mode, uninstalled unknown device, restarted computer to let it automatically scan/update (still failed)
4. Deleted all pictures from My Pictures
5. Tried using Windows Vista drivers and setting to Vista Compatibility mode (I have windows 7), no avail
6. Uninstalled and reinstalled Unknown Device (aka camera) driver, didnt work
7. Tried the windows update software option, windows said everything was fine (pshhh).
8. Uninstalled unknown device, used the option "scan for hardware changes" still didnt work
9. Installed skype to see if the webcam would be recognized, which it wasnt.

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HP Envy 15-J112tx OS/Software :: Unknown Device For Windows 7 64-bit?

Nov 27, 2014

 I am looking for a driver to suit an "unknown device" that is being reported by the Device Manager.   The properties of the device are that the driver is not installed (Code 28)  Details of the device are that it is located on PCI bus, the value is ACPIHPQ6007 and the resource type is IRQ setting 0x00000017(23).

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HP ProBook 4540s OS/Software :: Missing Unknown Device?

Apr 10, 2012

This is my 3rd day since i bought this new HP probook 4540s [Product No. B9A39PA#UUF] and i like it, i made a clean install for windows 7 ultimate x64 and i've just realised that the hp drivers support page dose not has any drivers for the ultimate version, so i downloaded the proffesional drivers, now i have all devices are installed except  two devices named unknown device
The hardware Ids:
1- unknown device
2- unknown device

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Sony :: Windows 7 Installation On SR41M Leaves Unknown Device

Nov 15, 2009

I have just successfully installed 64-bit Windows 7 Home Premium on my SR41M, along with some 64-bit sony drivers I managed to find...

However, in my device manager I am left with a single device unaccounted for, listed merely as "Base System Device". I have absolutely no idea what it is.

what driver I might need to install to resolve this..?

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HP/Compaq :: Clean Install Of W7 On A Dv7t, One Unknown Device I Can't Figure Out

Nov 27, 2009

I didn't see one specific to Windows 7 driver.

Anyways, I have just about every hardware set except for this one device windows can't figure out. I have a Pavillion Dv7t-2000 series and I did a clean install of Windows 7 Home premium 32 bit. I have just about done every driver install from the driver page that pertains to my config....

So far I have downloaded:

Broadcom Wireless LAN Driver for Microsoft Windows 7
Intel PRO/Wireless Drivers for Microsoft Windows 7
IDT High Definition Audio CODEC Driver
Intel Chipset Installation Utility
ATI Mobility Radeon Video Driver
Synaptics PS/2 Port TouchPad Driver
HP Quick Launch Buttons
JMicron Card Reader Driver
HP MediaSmart MVP Software
HP MediaSmart SmartMenu
HP MediaSmart Webcam Software
HP ProtectSmart Hard Drive Protection
Lightscribe System Software...........

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HP EliteBook 8570w OS/Software :: Unknown Device On PCI Bus Driver Error

May 3, 2014

I am reinstalling my Elitebook 8570w and have an "Unknown Device" on PCI Bus driver error I cannot clear. 

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HP Pavilion Dv6 Networking :: Internet Adapter Is Not Found - Unknown Device

Sep 11, 2014

I have the HP Pavilion dv6 originally was with Windows7 recently I have installed the windows 8 64bit. everything was working well now I have a problem with the internet adapter. the system cannot find it and the troubleshoot screen couldn't sole the problem. tried to uninstall the drivers also did not work. and your website couldn't find my laptop model don't know why!
Internet adapter: Realtek PCle GBE Familly Controller.
Also one device in my device manager marked as an unkown.

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HP Envy 14-k030TX OS/Software :: Unknown Device On PCI Root Complex

Apr 16, 2014

I am using Hp Envy 14-k030TX. Laptop is runnig on the windows 8 64-Bit. There's a unkonwn device on PCI Root Complex. Divers are not available and i also dont which device is that. 

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Lenovo T400 / T500 :: T420s Windows 8 Unknown Device

Feb 14, 2013

I installed Windows 8 x64 recently and installed all the drivers. I was pretty sure that all the devices were installed.I was having a hardware power management problem before installing Windows 8 that I was hoping was a software issue that reinstalling the OS would fix. Turns out it wasn't software, but had to have the main board replaced under warranty. Even after the main board replacement, I was still pretty sure I saw all the device drivers were installed under device manager.
I'm noticing an "unknown device" listed that doesn't have a driver installed. I know often these can be the TPM or other system device, but I have the TPM installed as well as the chipset software and power management driver. But there is still this unknown device.The only clue I have as to what the device could be is under details, the "hardware ids" property value is "rootsscbfs_storlib_bus3". A Google search brings up nothing for this string. "STORLIB" makes it seem like it has something to do with storage, but I have the Intel RST driver (11.7 from Intel) as well as the card reader driver installed. I can confirm the card reader is functioning fine too.

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Dell Latitude E4200 :: Serial Port Driver Unknown Device - Windows 7

Feb 6, 2013

I installed  Windows 7 64 bit on a Dell E4200.I had two yellow exclamation points in device manager for unknown devices.

PCI Serial Port
PCI Simple Communications

I went to Dell support site and to the drivers and downloads page for my Service Tag.Under the Chipset section there is an Intel driver for AMT HECI.   Installing that driver solved the PCI Simple Communications item.

Also  under Chipset there is an Intel driver AMT SOL.   I installed that driver but the PCI Serial Port was still showing Unknown with the Yellow..In my case I had to then manually Update the driver as follows:

Open Device Manager > right click on PCI Serial Port and choose Update driver > choose Browse my computer and browse to the driver folder for the AMT SOL just created when you downloaded and installed the driver mentioned above.   Location for me is C:DellDriversR279202.

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HP Envy 15-j15ea OS/Software :: Driver For Unknown PCI Device After Reinstalling Windows 8.1

Aug 7, 2014

I have HP ENVY 15-j15ea and 2 problems with it.
1. After reinstalling Windows 8.1 64 bit I can't find the driver for unknown PCI (bus 6), which hardware ID is:
device PCIVEN_10EC&DEV_5229&SUBSYS_198A103C&REV_01PCIVEN_10EC&DEV_5229
I,ve tried this link, but it doesn't work: [URL] .....
2. And do I need to install some drivers for my laptop's motherboard/chipset AMD A76M FCH ? I couldn't find driver for it, so maybe it is pre-installed with Windows 8.1?

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HP Pavilion Dv9730 OS/Software :: Unknown Base System Device After Windows 7 Install

Jan 3, 2010

I have a Pavilion dv9730 nr laptop and installed Win 7 Pro.  In my Device Hardware there are 2 unknown icons?
Location: PCI bus 7, device 9, function 2
Hardware ID: PCIVEN_1180&DEV_0843&SUBSYS_30CC103C&REV_12                         PCIVEN_1180&DEV_0843&SUBSYS_30CC103C                         PCIVEN_1180&DEV_0843&CC_088000                         PCIVEN_1180&DEV_0843&CC_0880

Location: PCI bus 7, device 9, function 3
Hardware ID: PCIVEN_1180&DEV_0592&SUBSYS_30CC103C&REV_12                         PCIVEN_1180&DEV_0592&SUBSYS_30CC103C                         PCIVEN_1180&DEV_0592&CC_088000                         PCIVEN_1180&DEV_0592&CC_0880

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HP Pavilion G4 1264ca OS/Software :: PCI Device And SM Bus Controller Missing And Unable To Install

Sep 21, 2014

I had recently performed a clean install on my notebook PC and when I rebooted it, the drivers for the PCI device and the SM BUS Controller were missing. When I go to Device Manager and try to reinstall them or check for hardware changes, my computer is unable to install them. I was also missing my Ethernet and Wireless network drivers but I installed the appropriate drivers via the HP support website. However, I am still missing these two drivers. I have already tried to install the AMD chipset on my laptop but that just creates more problems because after the program asks me to reboot the computer it stays stuck at the Windows loading screen (rotating colours around the Windows logo).

Notebook model: HP Pavilion g4 1264ca

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HP ProBook 6460b Networking :: Network Controller And Base System Device Missing On Changing OS

May 21, 2014

I changed my OS on my ProBook 6460b to Win7 x64 which previously was x32
Hardware IDs; Network Controller
Base System Device
I have tried few drivers and windows update but it doesn't seem to work for me.

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HP/Compaq :: DV2 Win 7 "Unknown Device"

May 6, 2009

Installed the new Win7 RC 64bit on my DV2-1030us last night. Was really fast and easy and everything seems to be working great... but in Device Manager, there is an "Unknown Device" with a yellow exclamation mark next to it.

Upon closer inspection it says that it's location is, "on ATi PCI Express (3GIO) Filter Driver". I have no idea what this is. My internet searches have taught little about what this actually is. I have found a few HP dirver downloads for this, but when trying to install them, it just says my system doesn't meet the requirements.

It doesn't seem to be affecting the performance of my system at all and it's not that big of a deal. I just don't like having yellow exclamations in my device manager.

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HP ProBook 4535s OS/Software :: Can’t Get USB Controller And SM Bus Controller Drivers To Work

Nov 26, 2013

I have a ProBook 4535s. I just did a fresh Windows 7 install but I can’t get the USB controller and SM Bus controller drivers to work. I downloaded and installed them from the HP website, but they are still showing yellow in Device Manager. 
SM Bus controller Hardware IDs
USB controller Hardware IDs

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Dell :: Video Controller And Video Controller (VGA Compatible) Not Working

Nov 8, 2009

But this to "video controller" and "video controller (VGA compatible)" still can't find the way to fix them, I went to dell's drivers download page and the drivers don't fix the problem!!!

I've been told that I need my video controller working so I can put my computer into standby or hibernate, since that option is not working on my computer.

My computer works fine but I really would like to fix this two issues!!!

Ethernet Controller is another device that is not working, but I'm not too worried about it since I can connect to the internet using my wireless card

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Dell :: Which Interface The 128GB SSD Is Using

Jun 3, 2009

I am planning to get a DEll E4200 and may I know what kind of 128GB SSD interface it is using within this laptop

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Dell :: What Hard Drive Interface Does An E1505 Use?

Jul 3, 2009

I might need to put a new hard drive in my daughter's 3 year old E1505. Would it be an SATA drive?

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Dell :: What Interface Do You Use To Switch Gpu In Your Studio 1340?

Aug 28, 2009

apple didnt release drivers which support gpu switching in it's new version for windows. basically, the drivers used in your dell is the same as that which will be used by my mac because our boards are the same(mcp79).

for the gpu driver, i'm currently downloading 179.82, A06 from and then i'll paste a modded inf so that my 9600m gt is also detected ....

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HP/Compaq :: DV9000 104-unsupported Wireless Network Device Detected. System Halted. Remove Device And Restart

Nov 13, 2009

I have the DV9000 series Laptop. It is the DV9235NR model (but not the DV9200 series...shows DV9000 on the bottom).

Anyways...I decided to try to upgrade the interal wireless G with a wireless N card that is from HP. It has the HP part number and everything. When I put the card in, this error comes up. I read that the bios doesn't recongnize the card. I took the card out, booted up to Windows with my old wireless card, put the computer in sleep mode, took out the old card and put the new card in. Works perfect. I know the card it good.

How can I make the new card work without having to do this? I heard about a bios hack. How is this done? Could I modify the Wifi card also? I did update to the newest bios on my laptop (dated 2008) and that didn't work. How about a bios from another series laptop?

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Acer :: Travelmate 4280 Data Interface Driver

Aug 12, 2009

I have just reinstalled windows XP on a acer travelmate 4280 notebook and loaded all the drivers but still have 3 data interface devices still in the device manager and can't find any drivers for them.

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Sony :: Is It Worthy To Upgrade 4200rpm HDD To Faster HDD With PATA Interface

Mar 30, 2009

my 13.3" VGN-SZ650N/C so far but I also want to get a used TZ series 11" Vaio Laptop but most of the models are only using slower 1.8 " 4200rpm drive.

Assume if I got a decent issue of a used TZ from eBay, is it worthy to spend extra $$ to upgrade those 1.8 " 4200 rpm drive to something faster ?

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HP/Compaq :: HP Nc2400general- Overclocking, Optical Drive > HDD Caddy Interface

Apr 19, 2010

i just got an nc2400, seems to be a pretty great machine maybe greater with some optimizations

-overclocking. it seems very quiet and cool, has anyone overclocked with success?

-hdd in optical bay caddy, i want to know more about this. mainly, is the optical drive SATA, or would it basically be the same PATA interface as the old HDD?

im thinking the best thing for this laptop is either a PCMCIA SSD or PCMCIA to SATA for an at least normal hard drive speed.

unless mini pcie is the way to go? if anyone else has tried and succeeded at addressing the problem of slow hdd interface, id like to know your experience. i tried the intel 5100 mini card in the slot, said incompatible wifi device remove and restart at the bios. i guess this could be a general thing, with chipsets or something.

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Lenovo X / Helix Tablet :: Screen And Touch Interface Seems To Be Disabled

Apr 13, 2011

When I place my LCD into tablet mode, sometimes my mouse wanders slowly on the screen and the touch interface seems to be disabled.  After some trial and error I found that the culprit is that my TrackPoint is gently rubbing against the backside of the LCD. I found that I could make the mouse cursor move rapidly back and forth on the screen just by gently putting pressure on sides of the LCD when the laptop in tablet mode. I own two x220t devices, and this happens on both of them. My TrackPoint touch sensitivity is set 2 ticks to the left of the most sensitive setting.
I remember reading somewhere that the TrackPad is disabled when the laptop detects that the LCD is swiveled into tablet mode, so that it doesn't accidentally move the mouse.  Could the TrackPoint be similarly disabled so that it doesn't generate these phantom mouse movements?

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