Com1 already in use (Second post)

  • Thread starter Thread starter Manlio Laschena
  • Start date Start date
M

Manlio Laschena

Windows XP Pro.
Modem connected on the serial port.
Very often when I try to use the modem I get
"Com1 already in use"
Of course I have no other devices connected to com1, i.e. the IRQ is
assigned only to Com1.

I have already found a turnaround:
I uninstall the com1 , restart Windows and re install Com1.

Of course I don't like it.
Any idea to solve in a better way ?
Thanks
Manlio
Manlio Laschena
s/y Amarose
http://Delphi-Jedi.org
 
Manlio said:
Windows XP Pro.
Modem connected on the serial port.
Very often when I try to use the modem I get
"Com1 already in use"
Of course I have no other devices connected to com1, i.e. the IRQ is
assigned only to Com1.

I have already found a turnaround:
I uninstall the com1 , restart Windows and re install Com1.

Of course I don't like it.
Any idea to solve in a better way ?
Thanks
Manlio
Manlio Laschena
s/y Amarose
http://Delphi-Jedi.org
Click to expand...

You should wait at least 24 hours before posting again. This is a peer
to peer newsgroup with a volunteers from around the world. It can take
that long or longer for the right person to see your message.
 
Followup to msg on Mon, 27 Sep 2004 23:39:39 -0700, Rock
<[email protected]> :
(Original msg on bottom)

Sorry, Rock,
next time, to make you happy, I will wait 13 hours more.
Neverthless, due to my "long" experience, after one US daytime is
gone, the post remain unanswered.

Anyhow you are right.
Take it easy ... and please, next time I will wait 24 hours and you
will answer your comment "together" with an usefull content....

Ciao
Manlio
You should wait at least 24 hours before posting again. This is a peer
to peer newsgroup with a volunteers from around the world. It can take
that long or longer for the right person to see your message.
Click to expand...

Manlio Laschena
s/y Amarose
http://Delphi-Jedi.org
 
Followup to msg on Tue, 28 Sep 2004 02:18:00 -0500, "Kelly"
<[email protected]> :
(Original msg on bottom)

Kelly,
thanks a lot for your answer.
Before posting I have gone throuh MS knowledgeBase and Google . Read
tens of answer without any final result.
I know I will come to an end, but until now no success.
Again thanks for your courtesy
Manlio


http://www.google.com/search?hl=en&ie=UTF-8&q=Com1+already+in+use&btnG=Google+Search

http://groups.google.com/groups?hl=...earch&meta=group=microsoft.public.windowsxp.*
Click to expand...

Manlio Laschena
s/y Amarose
http://Delphi-Jedi.org
 
Followup to msg on Tue, 28 Sep 2004 08:58:19 GMT, Manlio Laschena
Followup to msg on Tue, 28 Sep 2004 02:18:00 -0500, "Kelly"
<[email protected]> :
(Original msg on bottom)
Click to expand...

Hi,
I think may be more useful to list what I have done upto now for
debugging this problem:

Run MSD I have VERY carefully verified if there is any conflict
between port IRQs and Resources address.
The used ports are:
COM1.IRQ4 for the serial (only one)
COM4,IRQ5 for the internal modem
COM2,IRQ3 for the IR port

Read Google and MS KB question and articles about.

Made IRQs changes and COM changes ... without any result, at the end
back to the original setup.

Verified that the error message is not due to the software using the
serial port, as the same result happens with a different application.

Carefully verified the BIOS setup looking for some data could refer to
a wrong port setup.

What seems to be the key to solve this matter it is to understand why
if I disable the Com1 and quit the PC. At the new startup, after re
enable the Com1 the port use is OK , until I quit again the PC.
i.e. if I power on the PC without the Com1 active and enable after the
post, the com1 works OK.

That's all Thanks for supporting

Manlio




















Kelly,
thanks a lot for your answer.
Before posting I have gone throuh MS knowledgeBase and Google . Read
tens of answer without any final result.
I know I will come to an end, but until now no success.
Again thanks for your courtesy
Manlio
Click to expand...

Manlio Laschena
s/y Amarose
http://Delphi-Jedi.org
 
Do you use the Infrared Port ? If not then why not disable it in BIOS.
If you need 3 COM ports, you can get a USB to Serial Adapter to
give you a non-multiplexed port.
Otherwise, I would force the modem to COM-2 and then enable
COM-1, with the IR port disabled.
 
Followup to msg on Tue, 28 Sep 2004 11:08:39 GMT, "R. McCarty"
<[email protected]> :
(Original msg on bottom)

Hi R. ??
BTW I will keep your solution as the last escape ! Looks, at the
moment, the only way to come out of that mess !

But please leave me the opportunity to discover where and what kind of
junked mistake I have done there around ! It's impossible not to be
capable to find the reason for that.

Of course I have to find what I overdrive with the disable-re-enable
operation. .... I take another bit of time ... before surrender !
:-)))

I need the three Com ports:
The IR for the mobile
The internal modem for dialup net connections
The serial to drive a RF modem to control an SSB equipment.

Thanks a lot for the help .. at least I have a final better workaround
!
Ciao
Manlio



Do you use the Infrared Port ? If not then why not disable it in BIOS.
If you need 3 COM ports, you can get a USB to Serial Adapter to
give you a non-multiplexed port.
Otherwise, I would force the modem to COM-2 and then enable
COM-1, with the IR port disabled.
Click to expand...

Manlio Laschena
s/y Amarose
http://Delphi-Jedi.org
 
Make sure the external modem is turned on before you boot.

If you turn it on after boot you will get the "in use" message. At least that has been my experience.

--
Just my 2¢ worth,
Jeff
__________in response to__________
| Followup to msg on Tue, 28 Sep 2004 11:08:39 GMT, "R. McCarty"
| <[email protected]> :
| (Original msg on bottom)
|
| Hi R. ??
| BTW I will keep your solution as the last escape ! Looks, at the
| moment, the only way to come out of that mess !
|
| But please leave me the opportunity to discover where and what kind of
| junked mistake I have done there around ! It's impossible not to be
| capable to find the reason for that.
|
| Of course I have to find what I overdrive with the disable-re-enable
| operation. .... I take another bit of time ... before surrender !
| :-)))
|
| I need the three Com ports:
| The IR for the mobile
| The internal modem for dialup net connections
| The serial to drive a RF modem to control an SSB equipment.
|
| Thanks a lot for the help .. at least I have a final better workaround
| !
| Ciao
| Manlio
 
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