- Jun 15, 2009
- 6
- 0
- 18,510
I have an Acer 5742z laptop with a perfectly functional keyboard, except that the Fn function key has stopped working.
These are the steps I have tried:
--Replaced the keyboard with a known good spare from my old 5742z.
--Tried an external USB keyboard.
--Tried the Windows On-Screen Keyboard and online keyboard testers. None register the Fn key with internal or external keyboards.
--Checked BIOS for a "Fn Enable/Disable" option. Did not find this option...?
--Updated my BIOS from V1.16 to V1.30.
--Uninstalled and reinstalled the Dritek/Acer Launch Manager utility.
--Checked Task Manager to see that Launch Manager is running.
(Processes LMmanager, LMworker, MMDx64Fx, Dritek WMI Service are all running from the Program Files (x86)/Launch Manager/ directory.)
--Tried switching all of these processes to Run As Administrator and to Vista Compatibility.
--Loaded ALL startup programs in msconfig. (Dritek Launch Manager was listed there.)
--Switched the Keyboard Device Driver to an incorrect PS/2 driver and then back to the Standard PS/2.
(Is there a better driver for this keyboard??
https
/ae01.alicdn.com/kf/HTB16roubRfM8KJjSZFhq6ARyFXaf/OEM-US-Layout-Keyboard-Replacement-for-Acer-Aspire-5742-5742G-5742Z-5742ZG-5745-5745G-5745P-5745PG.jpg )
...all without success!
What is left?
I don't think it's hardware, so somehow the key is disabled in firmware or OS?
Maybe I need new keyboard drivers?
Or...?
This has been driving me crazy for months. Please advise.
Thank you!
These are the steps I have tried:
--Replaced the keyboard with a known good spare from my old 5742z.
--Tried an external USB keyboard.
--Tried the Windows On-Screen Keyboard and online keyboard testers. None register the Fn key with internal or external keyboards.
--Checked BIOS for a "Fn Enable/Disable" option. Did not find this option...?
--Updated my BIOS from V1.16 to V1.30.
--Uninstalled and reinstalled the Dritek/Acer Launch Manager utility.
--Checked Task Manager to see that Launch Manager is running.
(Processes LMmanager, LMworker, MMDx64Fx, Dritek WMI Service are all running from the Program Files (x86)/Launch Manager/ directory.)
--Tried switching all of these processes to Run As Administrator and to Vista Compatibility.
--Loaded ALL startup programs in msconfig. (Dritek Launch Manager was listed there.)
--Switched the Keyboard Device Driver to an incorrect PS/2 driver and then back to the Standard PS/2.
(Is there a better driver for this keyboard??
https
/ae01.alicdn.com/kf/HTB16roubRfM8KJjSZFhq6ARyFXaf/OEM-US-Layout-Keyboard-Replacement-for-Acer-Aspire-5742-5742G-5742Z-5742ZG-5745-5745G-5745P-5745PG.jpg )...all without success!
What is left?
I don't think it's hardware, so somehow the key is disabled in firmware or OS?
Maybe I need new keyboard drivers?
Or...?
This has been driving me crazy for months. Please advise.
Thank you!
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