Toshiba Sattelite L750D with Backspace weird issue

[8ternity]

Hi Everyone,

I had a Toshiba Satellite L750D with a weird keyboard issue. This issue only happening with 1 key.

When the computer are in Windows, we hit Backspace, it's erase one letter and the cursor his skipping all letters (It's like we hit the Home button, in every backspace key is hit).

I try 2 differents Keyboard, also reinstall Windows 7, 8.1 and 10 and samething. Also try an USB external keyboard, and works like a charm, but we need internal keyboard.

When i was in DOS mode, backspace are working great.... It's only in Windows.

No Idea why this problem his happening.

Does anyone has experienced this issue before or having a solution?

Thanks.

[HarryPK]

Re: Toshiba Sattelite L750D with Backspace weird issue

that is a windows issue. try to fresh install or restore windows at early time it works. if the issue not gone. check EC/IO/KBC.

[8ternity]

Re: Toshiba Sattelite L750D with Backspace weird issue

Hi Harry,

I've reinstall 3 times Windows 7, with differnts version. Also tested Windows 8.1 and samething.

What you mean by "EC/IO/KBC" ?

[diif]

Re: Toshiba Sattelite L750D with Backspace weird issue

Hi Harry,

I've reinstall 3 times Windows 7, with differnts version. Also tested Windows 8.1 and samething.

What you mean by "EC/IO/KBC" ?

EC/IO/KBC is the IC used for keyboard control amongst other things.

What happens if you try booting the laptop from a Linux Live disc ? Does the issue still happen ?

[8ternity]

Re: Toshiba Sattelite L750D with Backspace weird issue

EC/IO/KBC is the IC used for keyboard control amongst other things.

What happens if you try booting the laptop from a Linux Live disc ? Does the issue still happen ?

I don't try Live Linux Booting CD, but on MS DOS everything is working fine. Samething with Windows installation process.

In Windows itself, in the searching area box, it's working fine.

This is stranged.

[8ternity]

Re: Toshiba Sattelite L750D with Backspace weird issue

Question:

Update: It's a Toshiba L755D;

The problem is also happening when pressing 'Enter' the system write a letter "à" and made the enter.

It's look like some keys are doing double fonctions (Backspace+home); and also (Enter+à).

I upgraded the bios to the latest 2.00.

What can cause theses weird issue? Also test 3 differents keyboards (original one which some keys are missing, 2 new purchased on ebay).

[8ternity]

Re: Toshiba Sattelite L750D with Backspace weird issue

I don't try Live Linux Booting CD, but on MS DOS everything is working fine. Samething with Windows installation process.

In Windows itself, in the searching area box, it's working fine.

This is stranged.

I've finnaly tested 2 live Linus + 1 installed, and it does the same.

What can be the issue?

It's only 3 keys this problem happen "Backspace, Enter and \ between theses 2 keys".

[keeney123]

Re: Toshiba Sattelite L750D with Backspace weird issue

Not that I know but, sounds like some type of coding problem?