Messages in this thread | | | Date | Thu, 13 Mar 2008 18:14:26 +0100 | From | Pavel Machek <> | Subject | Re: Keys get stuck |
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On Wed 2008-03-12 21:14:56, David Newall wrote: > Jiri Kosina wrote: > > Very probably this is due to broken way how X themselves implement > > auto-repeat, instead of using kernel-provided auto-repeat functionality. > > It should be said that X implements auto-repeat out of necessity. While > the kernel can report key down and up events, its further interpretation > of those events is not appropriate. Many combinations of events are > possible, such as keyboard plus mouse, and this precludes the kernel > from providing a full interpretation. It would be wrong for it to even > try. X is the proper place to implement auto-repeat for X.
No.
hw is proper place to implement autorepeat, and along with some buffering, it has chance to work. Kernel is not real-time, and X are definitely not real-time, while autorepeat is real-time operation.
It actually mostly works in ps/2 case. Buffer in hardware means that pretty big interrupt delays can be tolerated without problems.
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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