Remove my address fro this list please.
thank you.
On Dec 2, 2011, at 7:42 AM, [email protected] wrote:
Today's Topic Summary
Group: http://groups.google.com/group/g-books/topics
PB G4 stops responding to keyboard and trackpad [8 Updates]
PB G4 stops responding to keyboard and trackpad
Bruce Johnson <[email protected]> Dec 01 09:43AM -0700
On Dec 1, 2011, at 2:04 AM, Lists wrote:
> I'm pretty sure, when Apple *did* start using USB internally, they
routed the keyboard and trackpad through the *same* USB hub (erm, is
that the correct term?) as the external ports,
No I do know that the USB keyboard and mouse have always presented as
a separate hub. I'll have to look in System Profiler on my PBG4 at
home tonight to see what it is.
> so you'd kind of expect a global USB failure to be present. So, if
it is internally USB, the only other think I can think of, past what
has already been suggested, is that the actual keyboard/trackpad
device might be having an issue as a USB HID? Is it a self contained
unit, or is some of the device broken out on to the main logic board?
The keyboard and trackpad are separate units, but are interconnected
on the wiring.
Stray thought just hit me....Web cameras and the like use CCD's that
are quite sensitive in the IR (point a TV remote at your web cam and
press the buttons see what you see), and actually have IR filters so
they don't burn out in bright light. These filters are reasonably easy
to remove <http://www.instructables.com/id/Making-a-Night-Vision-
Webcam/>
I wonder if such a modified web cam might not be a useful tool for
identifying possible electronics failures, as the typical failure mode
for intermittent issues like this is a short circuit or poor
connection that breaks when something runs too hot; aiming a modified
camera at the logic board might identify the 'hot spots', helping
isolate the problems...
--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group
Institutions do not have opinions, merely customs
Jeremiah Holt <[email protected]> Nov 30 05:13PM -0500
I believe piano was the last PowerBook to use adb
On Nov 30, 2011 5:05 PM, "Matt Emson" <[email protected]>
wrote:
>> There are no visibly loose connectio...
Which was the last model that used ADB for the internal keyboard and
trackpad?
M
--
You received this message because you are a member of G-Books, a group
for
those using G3 iB...
Jeremiah Holt <[email protected]> Nov 30 05:14PM -0500
Pismo that is
On Nov 30, 2011 5:05 PM, "Matt Emson" <[email protected]>
wrote:
>> There are no visibly loose connectio...
Which was the last model that used ADB for the internal keyboard and
trackpad?
M
--
You received this message because you are a member of G-Books, a group
for
those using G3 iB...
Ashgrove <[email protected]> Nov 30 06:50PM -0800
> stops recognizing the built in kb and trackpad it does not recognize
> them again without a restart.
> What is likely to cause this behavior?
That particular model, like Kris says, has a tiny cable connecting
both trackpad and keyboard to the logic board. There is a possibility
that this connection is either loose or breaking.
I would not recommend anybody to try re-seating it, as it is very
fragile and can easily break. I know it for a fact, since it happened
to me while upgrading the HD and optical drives. That's one of the
instances that calls for professional help --unless of course one
knows soldering and REALLY handy stuff.
HTH,
Felix
"J.M.P.Hissel" <[email protected]> Dec 01 10:54PM +0100
> Either the Lombard (I know this for certain) or the Pismo G3
(maybe, I don't
> remember)
The Pismo.
Jo Hissel
Lists <[email protected]> Dec 02 12:21AM
Sent from my iPad
>> Either the Lombard (I know this for certain) or the Pismo G3
(maybe, I don't
>> remember)
> The Pismo.
No, you are talking about external ports. Apple used ADB internally
till quite late in the PowerBook line. As others have stated, some G4
Models even used ADB internally. The Pismo was the last to have an
external ADB port.
M
Clark Martin <[email protected]> Dec 01 06:28PM -0800
> No, you are talking about external ports. Apple used ADB internally
till quite late in the PowerBook line. As others have stated, some G4
Models even used ADB internally. The Pismo was the last to have an
external ADB port.
The Pismo does NOT have external ADB. It does have S-Video which uses
the same MiniDIN-4 connector. The wallstreet DOES have an external ADB
port. So either the Wallstreet or Lombard is the last model with
external ADB.
Sent from an iPhone, but is it mine?
Matt Emson <[email protected]> Dec 02 07:50AM
Sent from my iPhone 4
> On Dec 1, 2011, at 4:21 PM, Lists <[email protected]>
wrote:
> The Pismo does NOT have external ADB. It does have S-Video which
uses the same MiniDIN-4 connector.
Fair enough. I don't own a Pismo, so I don't know any better - simply
making assumption on the info posted here so far. I do know that ADB
(or a flavour of it) continued to exist and be used (for various
tasks) in PowerBooks, right up till the MacBook. Models right up to
the later G4 PowerBooks used the ADB protocol for connecting their
internal Keyboard and trackpad, plus they all (afaik) continued to use
it for the PMU and some other device I forget. How it was implemented,
no idea. Might be as it was in legacy Macs, might be over USB, might
be some internal specific bus protocol layer. But, no matter the
technicalities, required ADB drivers to make those peripherals
function. Make of that what you will :-)
M
You received this message because you are subscribed to the Google
Group g-books.
You can post via email.
To unsubscribe from this group, send an empty message.
For more options, visit this group.
--
You received this message because you are a member of G-Books, a group
for those using G3 iBooks and PowerBooks (we run a separate list for
G4 'Books).
The list FAQ is at http://lowendmac.com/lists/g-books.html and our
netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to [email protected]
To leave this group, send email to [email protected]
For more options, visit this group at http://groups.google.com/group/g-books
Support for older Macs: http://lowendmac.com/services/
--
You received this message because you are a member of G-Books, a group for
those using G3 iBooks and PowerBooks (we run a separate list for G4 'Books).
The list FAQ is at http://lowendmac.com/lists/g-books.html and our netiquette
guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to [email protected]
To leave this group, send email to [email protected]
For more options, visit this group at http://groups.google.com/group/g-books
Support for older Macs: http://lowendmac.com/services/
