Magic Sysreg key problems.

[jdow]

On 2012/08/22 06:02, Tim wrote:
> On Tue, 2012-08-21 at 15:27 -0500, Aaron Konstam wrote:
>> Theree seems to be general agreement if you don't include the CTRL key
>> only a snapshopt is genrqated the function is not executed.
>
> Depends on your user interface...  If you're using something like Gnome,
> it's assigned its own function to ALT and PrintScreen (to screengrab the
> current active window), versus PrintScreen (by itself, to screengrab the
> whole desktop).
>
> Whereas, at a basic text-only console, it may be ignoring presses of the
> PrintScreen/SystemRequest key, and pass it along, for something else to
> deal with.
>
> The same goes for other hotkeys.  Outside of Gnome, for instance, you
> can switch between terminals simply by pressing ALT and one of the
> Function keys.  Inside Gnome, it's using those key combinations for its
> own purposes, so another key sequence is used.  Again, adding CTRL to
> it, does the job.

Even with the reminders I've seen people keep forgetting that most
modern keyboards are two key roll-over keyboards. The keys are matrix
scanned in a fashion that any two keys pressed at the same time can
be detected but more than two keys pressed at the same time is very
iffy. You guys may be fighting an inherent keyboard problem rather
than an OS deficiency.

I have an animatronics programming application that can use the number
keys on a keyboard for controlling the actions of selected channels of
the animations. I had to find a true N-Key rollover keyboard to prove
it actually worked as advertised with a proper keyboard. Erm, that
keyboard was a gaming keyboard from <gisp> Microsoft, in case anybody
is wondering.

{^_^}