Logitech QuickCam Driver breaks WinXP USB Audio Driver MIDI

I wanted to post this everywhere, since it was a pain of a problem to find,
and I wanted to save others the same headache.

My company uses the MIDI capabilities of the built-in WinXP USB audio driver
to do firmware updates of our product over USB.

I purchased a Logitech Quickcam for Notebooks Deluxe, and after I installed
the Logitech Software/Drivers, our firmware update utility could no longer
communicate with our hardware via the built-in USB Audio Driver.
Although our product appears as a "USB Audio Device" and the various
"Properties" dialogs all report that the device is installed and working
properly, the MIDI ports of our hardware are not available in the
Control Panel->Sounds and Audio Devices-> AUDIO tab-> MIDI music playback
default device drop-down.
As soon as the logitech drivers are uninstalled, our hardwares MIDI ports
magically appear in this drop-down.

I confirmed that
the AudioTrak MIDIMate (www.audiotrak.org), which also relys on the
built-in USB Audio Driver, has the same issue with the Logitech drivers.

Not sure if its a Windows problem or a Logitech problem or both, so I
am posting here as well as to Logitech support.

I am running WinXP SP2, full updated as of 7/28/06
Problem occurs on both my IBM/Lenova z60m and a P4 Desktop,
both with intel USB chipsets.
Logitech Software 8.47.0000 and 8.4.8 exhibit the problem.

[TitoPulpo]

Funny you posted this today as I found this only last night. Had very similar problems with a number of devices that used Windows USB Audio driver....Hope it works for you...

ant0nwax
01-24-2007, 07:40 PM
The Problem is really caused by Logitech Webcam
i do not know if it works if i install it again, i wont !!!!
FADERBOX IS GREAT !!!!!

I found a fix that worked for me and I hope it works for anyone else experiencing the same issue. I had to Manually delete the UpperFilters and LowerFilters registry values. (maybe only one exists at your place)


To Manually delete the UpperFilters and LowerFilters registry values, follow these steps:

1. Start Registry Editor (Regedit.exe).
START > RUN > (Type) REGEDIT (and hit ENTER)


2. Locate the UpperFilters and LowerFilters value under the following key in the registry
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E96C-E325-11CE-BFC1-08002BE10318}

3. On the Edit menu, click Delete, and then click OK.


Now you have to UNINSTALL THE USB AUDIO DEVICE, UNPLUG IT, AND REPLUG IT AGAIN

VOILA !!!! WORKING !!!!
PS, somehow u have to Use the Emulated USB AUDIO DEVICE Drivers

PS2: you can listen to my tracks on 123audio.de ( http://www.123audio.de)
everything is downloadable for free in full length, if you do not make money
with it, its released under CREATIVE COMMONS License

[impermanence33]

Forgive me if I am repeating, but I had the same problem where my Logitech web-cam driver conflicts with the Midi Keyboard (Evolution MK-425C) and thanks to various posts have solved the issue. I am now able to use the Logitech web-cam at the same time as the midi keyboard.

Initially I only had the midi device installed and it worked fine. Then, I installed the Logitech driver and the midi device was no longer recognised by Reason (my music software).

To solve the problem, I did the following:

1. Go into the registry editor (go to Start Menu, Run and type regedit)

2. Go to this location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E96C-E325-11CE-BFC1-08002BE10318} and delete the two items "LowerFilters" and "UpperFilters"

3. Go to this location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{6BDD1FC6-810F-11DO-BEC7-08002BE2092F} and delete the item "LowerFilters"

4. Go to this location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{6BDD1FC5-810F-11DO-BEC7-08002BE2092F} and delete the item "UpperFilters"

5. Move back to the root of HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\

6. Launch a search (i.e Ctrl F with the option to search in "Data") and type "LVUSBSTA". For any place found (only in the "Control\Class" area), just delete the "LowerFilters" item (it is the item that contain the value LVUSBSTA found). For me, I didn't find any other places than the ones mentioned here.

7. Then uninstall the midi device driver, unplug it and plug it back in. Windows should recognise it and install it and it should work!

Thanks to all the people who posted in various forums. All I've done is summarise the bits and pieces that eventually worked for me.

[Adam_Joseph]

I tried connecting my PC3x to my Dell XPS M1210 laptop. It has an integrated Logitech camera.

i just renamed the LowerFiler with an _ to its name, in case it would cause some more serious problems.
but no problems at all! everthing works fine now.

i feared i had to sell my new webcam or buy an midi-merger for 60€ to connect my usb-keyboard to my interface via midi....i'm glad this is not necessary.

Thankz Guy!!!! Been hurting my head for a while looking for a solution like this!!

[taztaztaz]

I had the same problem with the
Mackie control universal pro
not showing the MIDI ports.
Uninstalling webcam drivers from logitech helped me.
It was a 21MB driver bundle and

It would have helped me if this thread would have shown up in google search :-)
so: if you have problems with the Mackie control universal pro
not showing the MIDI ports in usb audio settings....