Keyboard erratic behavior (sometimes)

[Andres Vettori]

Hi, after the computer boots (STE) the keyboard sometimes (like half the time, or more) start misbehaving. Keys don't work or type any random character.

Some other times, keyboard works perfectly with no issues.

 

I could not find a pattern so far, but will keep investigating.

 

Any has an idea what could be related?

 

Agv

[ParanoidLittleMan]

Usually it is caused by bad contact at keyboard connector. So, check it, clean contacts. And may be keyboard chip bad contact in it's socket.

It may be loose soldering too - at connector, or some line.

[Andres Vettori]

On 10/3/2021 at 6:47 AM, ParanoidLittleMan said:

Usually it is caused by bad contact at keyboard connector. So, check it, clean contacts. And may be keyboard chip bad contact in it's socket.

It may be loose soldering too - at connector, or some line.

I was about to start removing the case screws (again) on my Atari STE but remembered that a few days ago I dropped my STM1 mouse on the floor and started to behave strangely. Apparently the left button micro-switch got smashed by the drop and not it "gets stuck". 

So it seems that this is what was causing the keyboard to behave the way it did... don´t really know what that might have to do, but it is. 

When I remove the faulty mouse the keyboard functions perfectly, so mystery solved. 

 

Thanks!

 

Agv

[ParanoidLittleMan]

Yes, mouse problem can cause bad keyboard behavior too. Some kind of shortcut in mouse. I had it many years ago, and later fixed that mouse.