Webcams

[Richo]

Hi,

I have discovered that LVPrcSrv.exe suddenly starts using 99% of my CPU in the middle of a software compile.  When this occurs, my system is brought to it's knees - ie, it virtually locks up.  Details as follows (from Microsoft Windowsefender):

File Name: LVPrcSrv.exe
Display Name: Logitech QuickCam
Description: Logitech LVPrcSrv Module.
Publisher: Logitech Inc.
File Path: c:\program files\common files\logitech\lvmvfm\LVPrcSrv.exe
File Size: 81920 Bytes
File Version: 9.0.2.1076
User Name: NT AUTHORITY\SYSTEM
Services: Logitech Process Monitor
Ships with Operating System: No

So, Logitech, you have a bug.  Hopefully not many other people will encounter this problem...

Cheers,

Rich :-)

[KachiWachi Distinguished Logi Legend]

Welcome to the New Logitech Community Webcam Forum Richo!

You mention a software compile, but do not mention what you are compiling, and with what program, etc...

Have you tried upgrading to QuickCam 9.5.0?

---

[Richo]

Thanks for the welcome :-)

Not much point going into the details of my compilation environment, suffice to say it's for embedded devices.  I figured the important thing to know is that there's a lot of HDD activity.  The 99% usage occurs about 8 minutes into the build.

Anyway, I shall try the newer Quickcam and report the result.  Interesting that the new Notebook Pro camera doesn't appear on the downloads page...

Cheers,

Rich :-)

[Richo]

I have now tested QuickCam 9.5.0 and the result is the same.  CPU usage again goes to 99%.  For the benefit of anyone reading this who is suffering the same problems, stopping and disabling the "Logitech Process Monitor" service (so it won't ever run) via

Start | Run | services.msc

Will get you out of trouble.

Cheers,

Richard.

[KachiWachi Distinguished Logi Legend]

Thanks for reporting back with your information Richo!

[wadeb]

Hi, I'm writing to report that I'm seeing a similar issue now. I have a Dell XPS M1710 with Intel Core Duo notebook, and LVPrcSrv is currently taking 50% of my CPU time (one entire CPU) while I run an intensive data build process.

My Launcher.exe version number is 9.5.0.1099.

I telecommute, so my QuickCam is not something I can shut off all the time unfortunately. For now, I'll just stop the service when I do anything intensive. I would hope this will be fixed in the next version, though!

That's funny that Logitech uses Granny & Pixomatic from RAD Game Tools. Good use of those libraries, and good deal for RAD!

-Wade

[KachiWachi Distinguished Logi Legend]

Thanks for your report wadeb.

"That's funny that Logitech uses Granny & Pixomatic from RAD Game Tools. Good use of those libraries, and good deal for RAD!"

Are these Video Effects "creatures"? (My cameras can't use the Video Effects, so I wouldn't know. I don't even know who Granny & Pixomatic are.  )

[orbit]

I have the same problem.

Seem that it mostly happen when I start compiling. Using mingw.

Any solutions yet?

Can I uninstall it?

[wadeb]

http://forums.logitech.com/logitech/board/message?board.id=quickcam_software&message.id=897

(Mod note: Edited to make the link clickable.)

Message Edited by Pegasus on 06-30-2006 07:47 PM

[KachiWachi Distinguished Logi Legend]

Welcome to the Logitech Community Webcam Forum orbit!

Thanks for reporting in with your data.

It seems Logitech has something else to look into here.