Lately the mouse pointer on my main RiscPC RISCOS 4.02 has taken to
freezing the odd time whilst using different programs. The blue pointer
gets stuck though the tracker ball still operates because if I move it to
the bottom of the screen the obscured task bar comes to the front. The
buttons still work as well, only the optical feedback is lacking.
A hard reset fixes the problem until the next time. This happens about
ones or twice every other day or so.
Does anybody have any ideas what might be causing this?
Jochen
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In article <4e70006831jl@spamnet.co.uk>, Jochen Lueg
<URL:mailto:jl@spamnet.co.uk> wrote:
Quote:
Hello Lately the mouse pointer on my main RiscPC RISCOS 4.02 has taken to freezing the odd time whilst using different programs. The blue pointer gets stuck though the tracker ball still operates because if I move it to the bottom of the screen the obscured task bar comes to the front.
I don't understand is the pointer moving to the bottem or are you saying the
computer acts as if it has been moved to the bottem?
Are you using a PS2mouseMini?
If yes what happens if you unplug, wait a few seconds and reinsert?
Or if you try another mouse?
I have seen some apps restrict the mouse movement sometimes to just one axis /
sometimes a rectangular area, whilst they are busy doing some processing and
then it frees up the mouse!
Quote:
The buttons still work as well, only the optical feedback is lacking. A hard reset fixes the problem until the next time. This happens about ones or twice every other day or so. Does anybody have any ideas what might be causing this? Jochen
Chris Evans
--
CJE Micro's / 4D 'RISC OS Specialists'
Telephone: 01903 523222 Fax: 01903 523679 chris@cjemicros.co.ukhttp://www.cjemicros.co.uk/
78 Brighton Road, Worthing, West Sussex, BN11 2EN
The most beautiful thing anyone can wear, is a smile!
In article <ant031338313pErr@client.cjemicros.co.uk>,
Chris Evans <chris@cjemicros.co.uk> wrote:
Quote:
I have seen some apps restrict the mouse movement sometimes to just one axis / sometimes a rectangular area, whilst they are busy doing some processing and then it frees up the mouse!
I see mouse movement limited so it will go up & down but not side to
side, quite often.
It's always surprised me. I've always assumed that the code which
reads mouse movement and displays the pointer is either interrupt
driven when the mouse hardware says it's been moved, or done via a
timer circuit that polls mouse position regularly - but either way,
handled as an interrupt, and that explains why the mouse pointer can
still move around the screen even when the machine is otherwise hung.
--
Jeremy C B Nicoll, Edinburgh, Scotland - my opinions are my own.
On 3 Oct 2006 Jochen Lueg <jl@spamnet.co.uk> wrote:
Quote:
Lately the mouse pointer on my main RiscPC RISCOS 4.02 has taken to freezing the odd time whilst using different programs. The blue pointer gets stuck though the tracker ball still operates because if I move it to the bottom of the screen the obscured task bar comes to the front. The buttons still work as well, only the optical feedback is lacking.
I take it you've checked mechanism? Although a tracker ball collects less
crud than a mouse ball, its picks up stuff from your hand. Another thing to
try is wobbling the cable incase there is an intermittant connection.
Quote:
A hard reset fixes the problem until the next time. This happens about ones or twice every other day or so.
Have you tried unplugging it and reconnecting to see if that solves it?
In article <4e700f571eJeremy@omba.demon.co.uk>,
Jeremy C B Nicoll <Jeremy@omba.demon.co.uk> wrote:
Quote:
In article <ant031338313pErr@client.cjemicros.co.uk>, Chris Evans <chris@cjemicros.co.uk> wrote:
I have seen some apps restrict the mouse movement sometimes to just one axis / sometimes a rectangular area, whilst they are busy doing some processing and then it frees up the mouse!
I see mouse movement limited so it will go up & down but not side to side, quite often.
It's always surprised me. I've always assumed that the code which reads mouse movement and displays the pointer is either interrupt driven when the mouse hardware says it's been moved, or done via a timer circuit that polls mouse position regularly - but either way, handled as an interrupt, and that explains why the mouse pointer can still move around the screen even when the machine is otherwise hung.
I think the mouse control is part of the video chip and is handled by it.
The movement in one direction usually occurs when the relevant slotted
discs don't move any more because of dirt or damage.
Jochen
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and the Roe Valley, why not try
In message <347f24704e.druck@druck.freeuk.net>
druck <news@druck.freeuk.com> wrote:
Quote:
On 3 Oct 2006 Jochen Lueg <jl@spamnet.co.uk> wrote:
Quote:
Lately the mouse pointer on my main RiscPC RISCOS 4.02 has taken to freezing the odd time whilst using different programs. The blue pointer gets stuck though the tracker ball still operates because if I move it to the bottom of the screen the obscured task bar comes to the front. The buttons still work as well, only the optical feedback is lacking.
I take it you've checked mechanism? Although a tracker ball collects less crud than a mouse ball, its picks up stuff from your hand. Another thing to try is wobbling the cable incase there is an intermittant connection.
Quote:
A hard reset fixes the problem until the next time. This happens about ones or twice every other day or so.
Have you tried unplugging it and reconnecting to see if that solves it?
I have the same trackerballs on a mac and an Iyonix. The one on the
Iyonix needs unplugging and plugging back in again every now and again
on the mac very occasionally.
The mac trackerball seems to need cleaning more, even though it is in a
less dusty part of the house but sometimes this fixes the problem on
the Iyonix as well.
I don't recall needing to un/replug the trackerball when using it via
the PS2 adaptor on a RiscPC.
In article <347f24704e.druck@druck.freeuk.net>, druck
<news@druck.freeuk.com> wrote:
Quote:
On 3 Oct 2006 Jochen Lueg <jl@spamnet.co.uk> wrote:
Quote:
Lately the mouse pointer on my main RiscPC RISCOS 4.02 has taken to freezing the odd time whilst using different programs. The blue pointer gets stuck though the tracker ball still operates because if I move it to the bottom of the screen the obscured task bar comes to the front. The buttons still work as well, only the optical feedback is lacking.
I take it you've checked mechanism? Although a tracker ball collects less crud than a mouse ball, its picks up stuff from your hand. Another thing to try is wobbling the cable incase there is an intermittant connection.
I've tried all those things. The tracker ball works perfectly well with
the other RiscPC I use for monitoring our water pump. What I can't
understand is that the optics freeze yet the mechanism is still detected.
Quote:
Quote:
A hard reset fixes the problem until the next time. This happens about ones or twice every other day or so.
Have you tried unplugging it and reconnecting to see if that solves it?
I've done that and anything else I can think of. The keyboard still works,
the system seems to detect the movements of the four direction sensors and
the three buttons, but there is no visual feedback.
It is most baffling.
Jochen
--
------------------------------------
If you want to learn about Limavady
and the Roe Valley, why not try
On 4-Oct-2006, Jochen Lueg <jl@spamnet.co.uk> wrote:
Quote:
I've done that and anything else I can think of. The keyboard still works, the system seems to detect the movements of the four direction sensors and the three buttons, but there is no visual feedback.
What you are describing sounds like a physical problem. Since you say that
the device works perfectly on other machines the fault is most likely with
the computer.
Two suggestions.
Does the plug have some sort of square section moulding on it? If so, this
can sometimes come up against the thick RiscPC plastic case and stop the
plug from being fully inserted leading to intermittent operation. If the
socket for one particular pin is a bit looser then just one function could
break down while the others continue.
The same situation could arise if one of the joints between the socket and
the motherboard has cracked. This can happen if there's a lot of
plugging/unplugging. Might be worth remaking these joints.
In article <4oh1obFe76sdU1@individual.net>, David Holden
<black_hole@apdl.co.uk> wrote:
Quote:
Two suggestions.
Does the plug have some sort of square section moulding on it? If so, this can sometimes come up against the thick RiscPC plastic case and stop the plug from being fully inserted leading to intermittent operation. If the socket for one particular pin is a bit looser then just one function could break down while the others continue.
The same situation could arise if one of the joints between the socket and the motherboard has cracked. This can happen if there's a lot of plugging/unplugging. Might be worth remaking these joints.
In all those case you would expect the pointer not to move in one or the
other direction or the buttons not to move, But the machine is still
detecting all that - its just that the system doesn't update the position
of the pointer!
Furthermore it does it in the middle of an operation when there has been
no interference with the cabling whatever. I had hoped there would be
somebody out there that had a similar problem in the past. I shall
persevere though.
Thanks to everyone for helpful suggestions.
Jochen
--
------------------------------------
If you want to learn about Limavady
and the Roe Valley, why not try
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