J
Jan Panteltje
- Jan 1, 1970
- 0
I had some strange messages in the log file for a few days (Linux):
Aug 8 10:47:10 grml kernel: atkbd.c: Spurious NAK on isa0060/serio1. Some program might be trying access hardware directly.
Aug 8 10:47:11 grml kernel: atkbd.c: Spurious NAK on isa0060/serio1. Some program might be trying access hardware directly.
So I looked it up with google, makes you think of keyboard sniffers.
Bumping the keyboard on the table made it come and go.
But then finally I _only_ got those messages..... no more keys.
Opened up Logitech keyboard, there is a little PCB with a chip under a blob of
epoxy, with four wires soldered to it.
Usually it is the cable in case of a malfunction, so I wanted to shorten it a bit,
but it looked really intact (and is quite new).
Took a magnifying glass and looked at the soldering of ground, data, clock, and power wires on that board.
Was shocked, did not expect that from Logitech, just a blob of solder with the wires
sort of stuck in it, no signs of proper solder flow, looked really bad.
I re-melted the solder, problem gone.
By the color of it it looks like leadless.
Now this keyboard is _not_ under thermal stress _ever_.
It is however constantly hammered on, so mechanical vibration only.
Aug 8 10:47:10 grml kernel: atkbd.c: Spurious NAK on isa0060/serio1. Some program might be trying access hardware directly.
Aug 8 10:47:11 grml kernel: atkbd.c: Spurious NAK on isa0060/serio1. Some program might be trying access hardware directly.
So I looked it up with google, makes you think of keyboard sniffers.
Bumping the keyboard on the table made it come and go.
But then finally I _only_ got those messages..... no more keys.
Opened up Logitech keyboard, there is a little PCB with a chip under a blob of
epoxy, with four wires soldered to it.
Usually it is the cable in case of a malfunction, so I wanted to shorten it a bit,
but it looked really intact (and is quite new).
Took a magnifying glass and looked at the soldering of ground, data, clock, and power wires on that board.
Was shocked, did not expect that from Logitech, just a blob of solder with the wires
sort of stuck in it, no signs of proper solder flow, looked really bad.
I re-melted the solder, problem gone.
By the color of it it looks like leadless.
Now this keyboard is _not_ under thermal stress _ever_.
It is however constantly hammered on, so mechanical vibration only.