Re: Keyboard generates 0 ,1 or 2 characters - HP Support Community

Rincewiind · ‎12-21-2022

HP DV9500 running Win 7 Ultimate with up to date drivers and as many Win7 updates as are available

Laptop rarely used but dug out for a project

All works fine apart from keyboard where pressing a key may produce 0, 1 or 2 characters. For example

a produces aq

b,c work normally

d produces de

e produced de

x and v work fine (as does ctrl-x,v,c which is just as well!)

and do on

Backspace does nothing

Then some other odd results

AltGr+a produces á (only 1 character) whereas a produces aq

Ins (Keypad) prodces .0 or nothing depending on numlock

numlock produces # but seems also to function as numlock

9 produces 9 but 9 on the keypad can produce 9+ or just + depending on whether numlock has been pressed

Running in safe mode does the same

the on-screen keyboard works fine

Changing character repeat delay make no difference

Control Panel->Keyboard says standard 101/102 Key or MS Natural PS/2 witgh HP QLB

I cant beleive its a physical problem wiht the keyboard - seems the wrong sort of errors.

So I'd have to guess the table that translates keyboad codes into characters is corrupt but I didn't think it could translate 1 input to 2 output characters and anyway I have no idea where to find it, repleace it or even look at what it is doing

Suggestions welcome

erico · ‎12-21-2022

Check to ensure that the keyboard type matches the display language.

That is an old laptop at 15 years since it was introduced to the market.

I am not surprised that it has issues.

Is that the original Windowes 7 installation?

Had you considered connecting a USB keyboard to see if the result is the same?

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Rincewiind · ‎12-21-2022

Yup - seriously old but the 17" screen is great for video (even if the priocessor cant cope with H265 😞 )
No idea of W7 was original as I bought it 2nd hand btui its woprked fine for many years then went into store. Came out and now misbehaves.
USB keyboard seems to work OK - it too is a bit old but the keys either work properly or dont work at all (same as on a more modern laptop)

Keyboard is the standard UK keyboard 41541-031.
Keyboard language is UK

erico · ‎12-21-2022

If you plug a USB keyboard for troubleshooting, you will be able to isolate the issue by seeing if it is a hardware problem or not.

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Rincewiind · ‎12-22-2022

Yes, of course. But if I dont have a USB keyboard . . ?

erico · ‎12-22-2022

That is when you might consider asking a nice neighbor or friend if they have one you can use for a few minutes.

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Rincewiind · ‎12-23-2022

Well its all become irrelevant and the laptop has died

Probably death throe symptons!!

erico · ‎12-23-2022

That would not be a surprise to me.

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Keyboard generates 0 ,1 or 2 characters

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