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I understand you are using Extended Desktop with a Samsung SyncMaster S24B240 monitor, but you are not being able to use the mouse in the secondary display.
Let me apologize for any inconvenience this issue may be causing to you.
In order to help you better I would like to gather more information about the configuration you have in the computer. Please attach to this thread the .txt file the Intel® System Support Utility will generate https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility
Please also attach the Intel® Graphics Driver Report. This link will show you how to generate it http://www.intel.com/content/www/us/en/support/graphics-drivers/000005848.html
To attach a file, you must click “Use Advanced Editor” on the upper right hand corner of the response box, then the “attach” option will appear on the bottom right hand corner of the response box.
1 of 1 people found this helpful
You may try to run “Hardware and Devices” troubleshooter to diagnose and fix the issue.
Follow these steps to run the troubleshooter.
a. Press “Windows key + W” from the keyboard.
b. Type “Troubleshooting” without quotes in the search box and hit Enter.
c. Select “View all” option from the left panel.
d. Select “Hardware and Devices” from the list and follow On-screen instructions.
You may try to uninstall and reinstall the Windows 8.1 version of Synaptic drivers from computer manufacturer website and check.
Uninstall the graphic card drivers.
a. Press Windows key + X on the desktop Screen and select Device manager.
b. Expand the device and right-click on driver and select ‘uninstall’.
c. Restart the computer.
You may refer to the computer manufacturer website and try installing the Windows 8.1 version of Synaptic and chipset drivers and check.
You may also try running the Windows Updates check for any optional driver and firmware/software update
Get more smart hardware troubleshooting hacks from Lenovo Thinkpad T510 Manual.
All good information wasted on a moron like me.<G Thank you for the inside tip though....everything applies sooner or later.seem
My issue.....as dumb as it may seem.......was all pilot error on my part. In my desktop set up (D20 w/ twin Samsung Syncmasters), I had grown much too accustomed to the primary/secondary set up over a few years and failed to recognize the importance of how they're laid out....both on the desk as well as in sequence thru Intel....and while I kept slamming the mouse icon into the left margin of the primary screen....if I had ONLY taken a moment to go to the other side of the screen and slide it across to the secondary, if would have saved a few hours for me; and your invaluable time for offering up resolves.<G
Swapping primary/secondary screens was the whole answer to my concerns about why "when I've grown accustomed to the the left margin of my primary screen as the gate over to secondary" I couldn't use that margin to access the off-board monitor from my laptop.
I was in a rush to get configured prior to loading up to take the gear out of town for the week and let the clock drive me....rather than siddown and think it through...by the numbers.<G Like number 1 and number 2 in ident.
Again....it was a self inflicted screw up. I most humbly thank you for the time and input and apologize for my delay as I'm still in the field.