Re: At wit's end - "No Audio Device"
- From: "R. McCarty" <PcEngWork-NoSpam_@xxxxxxxxxxxxxx>
- Date: Sun, 22 Jul 2007 08:59:08 -0400
It's likely you've got a significant number of "Phantom" device entries in
Device Manager. By default XP doesn't show "Plug-&-Play" phantoms
even if you tic/check "Show Hidden Devices".
To be able to see those P/P phantoms you have to add a new System
Environment Variable named, "DevMgr_Show_NonPresent_Devices"
and set it's value = 1. (No quotes - only shown for emphasis)
Once that is done, checking "Show Hidden Devices" will display 100%
of devices. Devices in each category that are shown in diminished tone
or grayed out are either Devices once connected and not currently active
or true Phantoms ( Duplicates or old entries ).
You can safely remove phantom entries from every category EXCEPT
for Sounds. There are codecs and other entries that normally appear in
diminished tone and should not be removed. When going through the
categories be aware that anything you normally use but might not be on
or connected shouldn't be removed. ( USB category, Storage Volumes...)
Just take your time reviewing and you should be O.K.
"Ian (no techie)" <Iannotechie@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:4A837E16-0103-41F7-9766-807EE13F23D2@xxxxxxxxxxxxxxxx
Hello again jack2656
Well, I followed your instructions to the letter but still have the
yellow/black exclamation mark alongside software device enumerator I'm
afraid. At one point I had two software device enumerator entries but now
realise that you said you had removed your entry. Went through the process
one more time having removed it but still finished with the yellow and
black!
I did get a warning at one point that the driver wasn't digitally signed?
Everything had been working fine until my hard drive wouldn't boot a few
days ago and I switched to the backup which was about a month old. One
thing
I could not understand is that on booting up with the back up drive and
connecting to the internet I began to receive Windows updates from
Microsoft
(including SP2) which should have already been installed as my original
XPHome installation disk included SP2. Didn't realise that I didnt have
sound until the audio beep began to make its presence felt. I guess I
could
start from scratch but not sure I'm up to a full install :(
Grateful for any suggestions.
Regards
Ian (no techie)
"jack2656" wrote:
Ian, this is Jack2656. You don't have to do anything with streamci.dll
and
swenum. Copy the file machine.inf from your windows folder on the boot
drive
(usually C:\ ) in to the temp folder. The path on my WinXP Pro computer
is
C:\WINDOWS\inf\machine.inf. Modify the machine.inf file (you can open it
with notepad) by deleting line 20: ExcludeFromSelect=*. I had
uninstalled
the Plug and Play Software Enumerator so I reinstalled it with the Add
Hardware wizard. Here's a step-by-step description of what I had to do
(remember I have XP Pro so it might be a little different in XP Home).
- Open the Add Hardware wizard and select Next on the Welcome window.
- On the Is the Hardware connected? Window select the Yes button, then
select next.
- The next window listed the hardware already installed on my computer.
At
the bottom of the list select Add a New Hardware Device, then select
Next.
- On the next window select Install the Hardware I Manually select from a
List (Advanced), then select Next.
- On the next window select Show All Devices, then select Next.
- The next window has a left and a right side. In the left side, labeled
Manufacturer, select (Standard system devices) and on the right, or
Model,
side select Plug and Play Software Enumerator, then select Have Disk.
- On the Install From Disk window select Browse and navigate to the
machine.inf file in the Temp folder you created, then select Open.
Select OK
on the Install From Disk window and make sure Plug and Play Software
Enumerator is still selected in the Model window (I had to repeat the
Have
Disk selection a couple of time before Plug and Play Software Enumerator
stayed selected). Wtih Plug and Play Software Enumerator highlighted
select
next and it will install it.
Now you can go to the System folder in Control Panel and select Device
Manager from the Hardware tab and make sure the Plug and Play Software
Enumerator is installed without a yellow exclamation mark. If it is then
uninstall your sound driver and restart your computer if it asks you to
(If
it doesn't then just right click on Sound, video and game controller in
device manager and it will reinstall the sound driver). If you rebooted
Windows it should install the sound card for you and the sound card
should
now work.
Good Luck
jack
"Ian" wrote:
Hi Paul
I'm still a little confused. Having placed PnP software device
enumerator
in c:\temp what do I do with streamci.dll and swenum?
Many thanks
ian
"Paul" wrote:
I GOT IT!!!! WOOOOHOOOO! Finally. Way too many hours spent on
this. First, your questions/comments...
Yes, I checked that every so often. It was always on.
In services, make sure that the WinAudio service is enabled,
automatic, and running. Then in Device Manager, System Devices
make
sure Plug and Play Software Device Enumerator is installed ok.
--------------------------------------------------------------------------------------------------There is more that is needed...continue reading.
If you need to reinstall the Plug and Play Software Device
Enumerator,
copy machine.inf from %windir%\inf to a temp dir
remove line 20: ExcludeFromSelect=*
------------------------------------------------------------------------------------------------The interesting thing about that is I tried deleting each of these
Now using the New hardware Wizard:
add new hardware \ have disk (select the temp dir
with the modified machine.inf) and install the
plug and play software enumerator
(swenum.sys is found in system32\drivers
streamci.dll is found in system32
or they can be found on your windows disk)
and
they would come right back, without me doing anything.
--------------------------------------------------------------------------------------------I was right that the sound card install is just fine.
Once that is reinstalled, uninstall the sound card drive, do a scan
for hardware changes then after it finds and reinstalls that card,
you
should have sound again.
--------------------------------------------------------------------------------------------
Good luck, and post back results please.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Here is what I needed to do...
I did need to fix the PnP Device Enumerator. HOWEVER, I read this
site:
http://www.theeldergeek.com/forum/index.php?showtopic=16136&pid=101347&mode=threaded&start=#entry101347
and that said I should delete all the registry entries for swenum.
So
I did that and reinstalled the PnP Device Enumerator. At first it
generated an error and did not work. So I rebooted and tried again.
It worked this time. I then uninstalled my sound driver, the OS
automatically found it again and it installed correctly. Now it
works.
Finally...THANKS for all your help, everyone who responded.
.
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