159838 - Keyboard buffers causing delayed input of text

Status: RESOLVED WORKSFORME

(SeaMonkey :: UI Design, defect)

Description

[lsof]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020618
BuildID:    20020618

When entering text, sometimes it takes several seconds for mozilla to catch up
with what I type in a TEXTAREA box.
I have only noticed this on the uboot.com web site because I use it regularly.

Reproducible: Always
Steps to Reproduce:
1. Type something in TEXTAREA
2. Watch as text is slower than what I type
3.

Actual Results:  not real time text entry

Expected Results:  real time text entry

Comment 1

[Andrew Schultz]

is Mozilla using a lot of CPU when this happens?  It's possible that some
Javascript animation or flash or something is hogging the CPU.

is it just http://uboot.com or every <textarea> (for instance, does typing in a
Bugzilla report / comment exhibit this problem)?

Comment 2

[lsof]

Not bugzilla - just uboot.
Uboot contains a piece of javascript which counts the number of characters typed
- probably the problem.
Mozilla uses 80% CPU, X uses 15%.

Comment 3

[mg8]

I can confirm the very same behavior on Mac OS9.2 since Mozilla 1.1b. The text
input appears significantly slower on the screen compared to earlier version.
Not only TEXTAREAs are affected (basically GMX - http://www.gmx.de/, but I see
the same problem also here with the bugzilla TEXTAREA), but also writing a
mail/news. Right now, I am using the current nightly (build 2002073108) and face
the same problem. It's pretty annoying....
(If this is a problem of CPU usage - how could I figure that out on the Mac?)

Comment 4

[lsof]

Problem does not occur on Windows NT (Moz 1.1b)

Comment 5

[lsof]

I think this is fixed.

Comment 6

[Ross Lindell]

This definitely is a problem in OS 10.2.3 with Build ID: 2003011308 (and some
earlier) in MailNews it is horrible.  Hitting reply to a message, and typing
soemwhat immediately will cause the reply "HELLO WORLD" to come out as "LLO
WORLD HE" or something like that.

Also don't know if it is related, but mouse highlighting, is also slow enough
that while editing, large sections of message text can be typed over as it is
inadvertantly highlighted from a delayed click and drag (mouse movement after
mouse click), which is frustrating to lose large message section and need to
COMMAND-Z (undo) to retrieve.

Please let me know what I can do to help solve this!

Comment 7

[Alexander Opitz]

Reporter can you reproduce this bug with a newer build (1.4 final)?
If not, then please close this bug as worksforme. Thanks.

Comment 8

[lsof]

I don't have time to retest this, sorry.

Leaving open since "Ross Lindell" also had the same problem.
Feel free to close in a couple of weeks.

Comment 9

[Asa Dotzler [:asa]]

Unable to reproduce on current mozilla builds under Mac OS X or linux Fedora Core 1.