Re: blink-cursor-end sometimes fails and disrupts pre-command-hook

["Ken Manheimer" <ken.manheimer@gmail.com>]

On 8/19/06, Chong Yidong <cyd@stupidchicken.com> wrote:
> "Ken Manheimer" <ken.manheimer@gmail.com> writes:
>
> > i see now - blink-cursor-start is called by the timer, which sets
> > blink-cursor-end on the pre-command-hook, does some cursor visibility
> > business, and then reestablishes the blink-cursor-timer.
> >
> > seems to me it would be more reliable to set the blink-cursor-timer
> > before adding blink-cursor-end to the pre-command-hook!
> >
> > i just tried making this change and removing the change from
> > blink-cursor-end (by putting revised copies of both functions in my
> > emacs rc), and the problem is not happening.  i would suggest going
> > with both changes - blink-cursor-end with the condition i suggested
> > adding, and blink-cursor-start looking like:
>
> Bingo --- I think that's it.  Something in your customizations must be
> causing the run-with-timer call in blink-cursor-start to signal an
> error.  One possibility is an invalid `blink-cursor-interval'
> variable.  Since blink-cursor-start is run from an (idle) timer,
> quitting is disabled.
>
> The question is, why did this surface only with the latest Emacs
> update?

actually, it isn't necessarily the latest emacs update, though it
probably is a one within the last several weeks.  i started noticing
the problem a week or so ago, but didn't have time to investigate
until yesterday.  i may not have done an update for a week or more
until before i first started seeing the problem.
-- 
ken
ken.manheimer@gmail.com
http://myriadicity.net