Magic Sysreg key problems.

[Joe Zeff]

On 08/22/2012 02:17 PM, jdow wrote:
> 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.

That may be why some of the instructions for this call for pressing 
Alt-SysRq (pause) Command, and why I've had best luck with pressing the 
keys one at a time and holding them down until all are pressed.