From: Pavel Machek <pavel@ucw.cz>
To: Jiri Kosina <jkosina@suse.cz>
Cc: David Newall <davidn@davidnewall.com>,
"Fred ." <eldmannen@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: Keys get stuck
Date: Fri, 14 Mar 2008 19:24:08 +0100 [thread overview]
Message-ID: <20080314182407.GA6990@ucw.cz> (raw)
In-Reply-To: <Pine.LNX.4.64.0803141020380.30831@jikos.suse.cz>
On Fri 2008-03-14 10:21:29, Jiri Kosina wrote:
> On Thu, 13 Mar 2008, Pavel Machek wrote:
>
> > 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.
>
> That's true. Unfortunately USB keyboards don't behave this way and there
> is nothing we can do about that.
Maybe. (Could we get host controller to effectively timestamp usb
packets for us?)
..but that is not a problem here, because X are broken even on ps/2
keyboards. USB keyboards may be misdesigned, but they are not responsible
for problems we see.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2008-03-14 18:24 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-11 23:32 Keys get stuck Fred .
2008-03-12 0:04 ` Andrew Morton
2008-03-12 8:48 ` Sebastien Dugue
2008-03-12 10:32 ` Jiri Kosina
2008-03-12 10:44 ` David Newall
2008-03-12 14:47 ` Theodore Tso
2008-03-12 15:20 ` Stephen Hemminger
2008-03-12 16:47 ` David Newall
2008-03-12 16:49 ` Jiri Kosina
2008-03-12 21:22 ` Hans-Peter Jansen
2008-03-13 5:42 ` Mike Galbraith
2008-03-13 9:48 ` Jan Knutar
2008-03-13 11:28 ` Mike Galbraith
2008-03-13 11:31 ` Jiri Kosina
2008-03-13 12:02 ` Mike Galbraith
2008-03-13 12:02 ` Carlos R. Mafra
2008-03-13 12:06 ` Jiri Kosina
2008-03-13 12:19 ` Carlos R. Mafra
2008-03-13 12:21 ` Mike Galbraith
2008-03-13 14:18 ` Helge Hafting
2008-03-13 15:13 ` Swap makes X unfair (was Re: Keys get stuck) Carlos R. Mafra
2008-03-14 11:02 ` Helge Hafting
2008-03-15 22:11 ` Carlos R. Mafra
2008-03-16 15:27 ` Jan Knutar
2008-03-14 18:34 ` Keys get stuck Pavel Machek
2008-03-13 17:14 ` Pavel Machek
2008-03-13 17:56 ` Fred .
2008-03-13 18:03 ` Pavel Machek
2008-03-14 9:21 ` Jiri Kosina
2008-03-14 18:24 ` Pavel Machek [this message]
2008-03-14 21:34 ` Lennart Sorensen
2008-03-14 13:30 ` Lennart Sorensen
2008-03-14 19:35 ` Pavel Machek
2008-03-13 13:01 ` Mark Lord
[not found] <a6meN-2aj-39@gated-at.bofh.it>
[not found] ` <a6wxo-1xY-1@gated-at.bofh.it>
[not found] ` <a6wQO-1YG-1@gated-at.bofh.it>
[not found] ` <a6Zgb-5Hj-55@gated-at.bofh.it>
[not found] ` <a7iiO-2fq-39@gated-at.bofh.it>
2008-03-14 20:20 ` Bodo Eggert
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