Satellite L750D - issue strange keyboard/touchpad

Hi guys, I'm new here and I hope you can help me.

I have a Satellite L750D here who has a strange keyboard/touchpad issue.

Recently, my screen was replaced and I toke the possibility of replacing the DD by a SDS.

I used the OS restore cd that I created from the partition recovery and completely reinstalled Windows 7 64 - Bit ones.

Everything seemed to work well after the last restart.

Then my after reboot, the keyboard was not working and or the touchpad.
I tried to restart / stop and start again, no change.

I plugged a USB keyboard and mouse, both work perfectly.

I reinstalled the drivers of touchpad on Toshiba site, still no change.

Then, I closed the lid and leave Notepad go into sleepmode/setting standby extended and found that when I opened the lid/screen, the keyboard was working again, but not the touchpad.

Fn + F9 made no difference.

I then pressed the button above the touchpad, but the touchpad remained dead. But after pressing this button, the keyboard went dead too!
The key for the touchpad power made no difference, the keyboard or the touchpad remained dead.

Given zero made no difference either.

Throw the drivers in safe mode led the pilots to be reinstalled, but both keyboard and the touchpad remained dead.

The only thing to bring back the keyboard is the cover and goes sleepmode/setting to Hibernate and wake up to the laptop.

But press the button above the keyboard and the touchpad is dead again.

Started from a Windows 7-LIVE CD, both keyboard and the touchpad remained dead.
Started from a live CD of Ubuntu Linux, keyboard works, no mather, you press the button for the touchpad, but the touchpad
died.

Is there anything else I can try, or what I have to assume there's something defect requiring hardware repair/replacement?

Thanks in advance for your help.

Kind regards
Jan

I plugged a USB keyboard and mouse, both work perfectly.

It's really strange... from my point of view of the rare, the mouse and external keyboard works properly, then the controller should be OK, and this means that the anomaly must be linked to the defective keyboard / touchpad.

But on the other hand, you said that the keyboard works correctly starting Linux Live CD.
For me, it makes no sense and I'm confused...

Anyway, given that the laptop has been disassembled to replace the screen and other parties, I think that something went wrong during this process and probably a part has been affected...

In my opinion, it is advisable to replace the keyboard and to check if it will fix the problem.

Tags: Toshiba

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