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Posts: 8
Registered: ‎10-09-2011
Location: Kuwait
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T420 - I can no longer use trackpad mouse button

[ Edited ]

Hi all. I did something yesterday after pressing a lot of keys by mistake which resulted in this problem. I have the keypad and the trackpoint active, but the left and right buttons are not responding both the buttom and upper ones. Tapping also doesn't work. The middle one used with the trackpoint is working fine though. The trackpoint and touchpad are okay too.


There is a strange thing happening also. When I disable the trackpad, the trackpoint and it's buttons work correctly as if everything is normal. When I disable the trackpoint  but not the trackpoint, I got nothing working.


Can anyone tell me what is going on? Is this a driver issue because I haven't done any updates lately... the only thing that happened is that random key presses...



Posts: 9,240
Registered: ‎12-26-2009
Location: Toronto, Canada
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Re: T420 - I can no longer use trackpad mouse button

Maybe try a bootable Ubuntu USB drive and see if it's reproducible there?
W520: 2720QM, Q2000M at 1082/1376, 32GB RAM, 500GB + 750GB HDD, FHD screen & MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 160GB HDD, WXGA+ screen
TPT1: 1839-23U
What's DOS?
Posts: 1
Registered: ‎10-14-2011
Location: US
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Re: T420 - I can no longer use trackpad mouse button

I have a similar problem.  I can move the cursor around, but none of the buttons work for anything.  I've had to plug an external mouse in to do anything.  I've rebooted.  I'm attempted to update drivers.  Checked the control panel to make sure everything was enabled.  Nothing has worked.  The only thing I can say is that I think that this all started after a Windows update went through.  Sorry I don't have anything constructive to add.  Any one else see this happen?