5.4b still having issues in Windows 7

[beakerman]

We have eight Windows 7 workstations that use DisplayLink adapters to drive their 2nd LCD monitor. All of them have issues with video blanking, draw in and flickering on the DisplayLink driven monitor. Sometimes it seems Windows Picture and Fax Viewer causes it. Other times, it might be Excel or Outlook.

Workstation Specs:
Dell Optiplex 740 chassis
Windows 7 Professional 64-bit
Office 2010 Beta
AMD Athlon X2 Processors
Onboard Nvidia video
6 GB RAM
80 GB HDD
5.4b DisplayLink driver
Various DisplayLink adapter brands - Diamond BVU160, Monoprice, EVGA, IOGear


I've tried the latest WHQL drivers from Nvidia 257.21 and also Nforce drivers 15.49. Neither seem to make any difference.

We have plenty of Windows XP 32-bit workstations that don't have these issues.

[beakerman]

I should clarify, we're using version 5.4b1.

[Wim]

Are you using Windows 7 in basic mode, rather than aero? The problems you describe can sometimes occur in basic mode.

Thanks

Wim

[beakerman]

Thanks, I will check the mode and let you know.

[beakerman]

Are you using Windows 7 in basic mode, rather than aero? The problems you describe can sometimes occur in basic mode.

Basic or Areo mode, it makes no difference which mode is selected. The DisplayLink connected monitor will blank, have draw in, etc. My WinXP users have zero issues.

[beakerman]

I will be calling your offices and support numbers. This is unacceptable. You claim to support Windows 7, but you do not.

[beakerman]

I will be calling your offices and support numbers. This is unacceptable. You claim to support Windows 7, but you do not.

Well I called 1 650.838.0481 and it went straight to voicemail. I cannot find a support phone number. What gives?

[Sian]

Please can you send us the results from the support tool described here:

http://www.displaylink.com/support/ticket.php?id=269

We will be able to see some more details of your system configuration from this.

Alo, please send us some photo's or ideally video of the exact behaviour you are seeing.

You can attach the files in response to this forum thread.

Regards,
Sian

[beakerman]

At the moment all I have is results from a machine running version 5.3.25973.0

This seems to be related to WPF issues.

[beakerman]

5.41b support tool results

[beakerman]

Status update?

I think I may have submitted support tool results for driver version 5.3. I'll get more results for 5.4.

[Wim]

Hi

Thanks for the logs. From your description I suspect that this is some problem around the graphics interaction. The log files show that you have a 2nd graphics driver installed:

Graphics: mv video hook driver2 (UVNC BVBA)
Graphics Driver: 6.0.1.0 Dated 2007-04-11

I'm wondering if there is an interaction between this driver and the DisplayLink software causing the issues you are seeing. Could you try uninstalling this and see if it fixes the issue?

Thanks

Wim

[beakerman]

That driver is used with UltraVNC, a tool we use to remotely control machines (help desk tool). I'm not sure we can remove it without disabling UltraVNC, but I'll look into it.

Yesterday I personally witnessed the screen draw in and monitor blanking on a user's machine. The user (on Windows 7) opened a TIFF with Windows Picture and Fax Viewer. The DisplayLink screen immediately went blank. If he moved the cursor around on it would draw in like a paint brush, but as soon as he clicked on the WP&FV window the screen would blank again.

I'm going to try a different TIFF viewer to see if that helps.