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Bug#614936: keyboard-configuration: Modifier keys (ctrl, shift, alt) not working - Bluetooth keyboard



reassign 614936 linux-latest-2.6
retitle 614936 Modifier keys (ctrl, shift, alt) not working - Bluetooth keyboard
thanks

On Fri, Feb 25, 2011 at 05:53:59PM +0100, Jacek Leśniewski wrote:
> I had no problem getting to the ttys, however I do not understand why it
> would be necessary to run the comands from the text mode console.

Because this helps to find the source of the problem:

1. X
2. HID
3. low level kernel driver
4. the keyboard itself

If you test only from inside of X any of these could be possible.

> > 2. Run "showkey -s".
> >
> > 3. Very quickly press Shift, press A, release Shift, release A.
> >
> The output for this is the following :
> 0x2a
> 0xaa 0x1e
> 0x9e

These are the scancodes that the keyboard sends to the computer (after 
some minimal processing by the kernel).  0x2a is the pressed Shift and 
0xaa is the released Shift - before A is pressed (0x1e).  So I see only 
three possibilities - 1. the keyboard is faulty or 2. the Bluetooth 
keyboard standard has redefined somehow the hardware protocol of the 
comunication between the keyboard and the computer and the keyboard 
driver doesn't support this new protocol or 3. that this keyboard 
generates the hardware interrupts in a strange way that confuse the 
keyboard driver of the kernel.

Because of this I am reassigning the bug.  Hopefully the kernel 
developers will know what to do with this bug.

Anton Zinoviev




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