How to enable fn key on toshiba satellite L775

Cyrille_1

Prominent
Mar 17, 2017
1
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510
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my PC is a toshiba satellite L775
the fn key is "inverted"
i want to setup deffaults for the keyboard
 

scranidi

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Mar 24, 2017
1
0
520
1
Windows 10 Update 3/16/2017 caused FN problem which installed Synaptics pointing Device driver version 19.0.9.5 (for Lenovo) conflicts with my Toshiba Satellite [L775-S7248].
I kept trying to uninstall, Windows kept reinstalling 19.0.9.5, even after deselect "Automatically get the device app and info provided by your device manufacturer." I tried Toshiba website for Synaptics pointing Device driver version 15.2.11.1, But Windows 7 driver will not work under Windows 10 and Toshiba does not support Window 10 for this model).
Solution:
Under This PC, under Manage, under Computer Management, under the Device Manager, under Synaptics pointing Device driver version 19.0.9.5 (for Lenovo), under Driver, Select "Roll Back Driver" It rolled itself back to 15.2.11.1 (2/3/2011). That stuck; Keys 1, 2, 3, and Space Bar are working. Device Manager no longer says Lenovo, but Synaptics PS/2 Port TouchPad.
Good Luck
 

scranidi

Prominent
Mar 24, 2017
1
0
520
1
Windows 10 Update 3/16/2017 caused FN problem which installed Synaptics pointing Device driver version 19.0.9.5 (for Lenovo) conflicts with my Toshiba Satellite [L775-S7248].
I kept trying to uninstall, Windows kept reinstalling 19.0.9.5, even after deselect "Automatically get the device app and info provided by your device manufacturer." I tried Toshiba website for Synaptics pointing Device driver version 15.2.11.1, But Windows 7 driver will not work under Windows 10 and Toshiba does not support Window 10 for this model).
Solution:
Under This PC, under Manage, under Computer Management, under the Device Manager, under Synaptics pointing Device driver version 19.0.9.5 (for Lenovo), under Driver, Select "Roll Back Driver" It rolled itself back to 15.2.11.1 (2/3/2011). That stuck; Keys 1, 2, 3, and Space Bar are working. Device Manager no longer says Lenovo, but Synaptics PS/2 Port TouchPad.
Good Luck
 

MarcT512

Prominent
Mar 24, 2017
1
0
510
0
Took me 3 hrs of research and trial & error, but this worked for me on a Satellite C670 (I think - It's not my laptop):

Uninstall the "Synaptics / Lenovo" mouse from the Programs section in Win10 (the equivalent of Add/Remove Programs).
No need to mess about in device manager.
Do a full power off (Disconnect charger & remove battery). This is because once the hardware is inverted, it stays inverted (I booted into Linux from DVD to check). If you fully power off, it reverts to normal.

Reconnect & power on. System will replace Synaptics driver with PS/2 mouse driver, which works fine. It does mean "gestures" (like pinch to zoom) aren't recognised on the track pad, but who cares...

Win10 still thinks the "update" was applied, so it hasn't tried to reinstall it (yet)...
 

CrustyOldGI

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Mar 27, 2017
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510
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I had same issue..same computer...this process solved the problem...for now...Thank you so much!
 

caronetta

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Apr 4, 2017
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caronetta

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Apr 4, 2017
2
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510
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dear scranidi,
i too have a toshiba l775 with the same problem with the windows updates and the fn affected keys.i tried the 'roll back driver' option but unfortunately the 'roll back driver' option was greyed out. Any ideas or suggestions on how to fix this problem?
 

Andre933

Prominent
Apr 28, 2017
2
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510
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