Closed
Bug 186966
Opened 22 years ago
Closed 22 years ago
Distinct humming sound ONLY when using Chimera
Categories
(Camino Graveyard :: General, defect)
Tracking
(Not tracked)
RESOLVED
WONTFIX
People
(Reporter: Wiblemo, Assigned: saari)
References
Details
User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.0.1) Gecko/20021104 Chimera/0.6
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.0.1) Gecko/20021104 Chimera/0.6
I am using a Titanium Powerbook G4/667 (running Mac OS 10.2.3) and whenever I
launch Chimera, I notice a continuous small humming (or buzzing) sound coming
from my computer. This sound is ONLY noticeable when I am using Chimera, not
any other applications (including other browsers). The sound is noticeable even
when I "minimize" Chimera into the dock.
Reproducible: Always
Steps to Reproduce:
1.
2.
3.
Comment 1•22 years ago
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Test made on Titanium PowerBook G4/500 OSX 10.2.3, no particular noise for me.
What are all your sound/alarm settings in System Preferences ?
Comment 2•22 years ago
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Uh, are you sure this is not your hard drive fan or something?
I have continued to try and isolate this problem. It is definitely not related
to sounds or alerts. It seems as if (and this is speculation), that Chimera is
constantly accessing my hard drive whereas other applications do not do this. I
can hear the same noise, albeit much less pronounced, when I open other
applications, but it quickly disappears. With Chimera, it is constantly
present. There is one EXCEPTION, however, which may be helpful in isolating
the problem. Whenever I surf to a new page in Chimera, the sound disappears for
just a brief second before the page is loaded.
Comment 4•22 years ago
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Here is a tool which may help you identify the problem.
1. Launch Chimera.
2. Find it's PID using top, ps or Process Viewer
3. In the Terminal, enter the following command:
% sudo fs_usage ChimeraPID
(replace the obvious part :), (enter password, when asked)
fs_usage will, in great detail, show Chimera's system activities, including file
accesses.
Thank you David for your suggestion. I can now tell you that Chimera is not
accessing the system any more than it needs to.
I'm also certain that this is an isolated problem since only one other user (so
far as I have found) has reported the same thing happening on his machine (also
a Titanium PowerBook). The "pronounced" buzzing does have something to do with
Chimera (in other programs it is exists, but it is very muted).
At this point, I'm at a loss--this is a strage problem.
Comment 6•22 years ago
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I have a humming sound when the screen saver 'Flurry' included in 10.2.3 is
running, with or without Chimera running. It's not the hard disk sound, it's a
very tiny sound, almost don't hear it unless you are looking for that problem
and it's not linked to 'sound settings': alert, volume, etc.
It is definitely a faint sound--it isn't noticeable when there is background
noise in the room. I can say with almost 100% certainty that the sound is the
same as Stephane describes when running the screen saver "Flurry." The
interesting thing is, however, that the sound does not go away when I "dock"
Chimera or have no Chimera windows open. As long as Chimera is running, the
sound is there. As soon as I quit Chimera, the sound disappears.
Comment 8•22 years ago
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Try giving your machine a hard slap on the side, or something ;)
Seriously, i've no idea why only Chimera would cause this. And unless you ship
us your machine to test on, it ain't gonna get fixed. Sorry.
Status: UNCONFIRMED → RESOLVED
Closed: 22 years ago
Resolution: --- → WONTFIX
Comment 9•22 years ago
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I have the identical setup described in this bug report and submitted a bug
yesterday only I thought it was more of a buzz than a hum, so I didn't find this
bug until today.
So I can further corroborate that this is an issue with the PB 667. If I had to
guess at the cause, I'd say that Chimera seems to have a timed loop of some kind
that hits a resonant frequency in the motherboard's circuitry causing some
component to hum more loudly than normal. This is sheer speculation but the
only explanation I can think of at the moment.
Comment 10•22 years ago
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If one of you guys wants to build chimera from source, I can point you to a few
places where you could tune some numbers.
Comment 11•22 years ago
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*** Bug 187496 has been marked as a duplicate of this bug. ***
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Description
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