Display never found on Lion 1.7.3

[schabbelfarfar]

Hello,

I just bought USB 2.0 to HDMI adapter to use with a Dell U2410 24" (1920X1200). I first installed the latest driver from DisplayLink 1.8a1. When I first plugged the adapter in, I never got any reaction. After that I have tried (after searching here and on the web);

- installing the other drivers
- connecting in different orders
- starting in safe mode
- tried different displays
- resetting the PRAM and NVRAM
- repairing permissions

Nothing seem to work and when I tried the adapter with a PC it worked fine. I have run the diagnostic tool you recommended and the file is attached here. This is what I ca read from the system messages:


2012-03-15 08:36:20,000 kernel: 0 0 AppleUSBCDC: start - initDevice failed
2012-03-15 08:36:21,000 kernel: USBF: 74.378 [0xffffff801649bc00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of Hub at 0xfd120000)
2012-03-15 08:36:21,000 kernel: USBF: 75.123 [0xffffff801649bc00] The IOUSBFamily has successfully enumerated the device.
2012-03-15 08:36:21,000 kernel: 0 0 AppleUSBCDC: start - initDevice failed


I also use WMWare Fusion and windows 7 64 bit and the adapter is found there but I don't get it to function properly. I guess it's because it's a virtual environment!?

I have a late 2011 macbook pro 15" with 8GB Ram and a Samsung SSD. The adapter seem to be found by OSx and appear as "WS Tech USB TO HDMI" under "system information".

Have anyone experienced problems like this or have a clue of where to begin?

All the best

J

[schabbelfarfar]

I added a zip when the tool was run with verbose setting.

[Carlo]

It looks to be an installation issue, please repair the disk permissions as suggested in http://www.displaylink.com/support/ticket.php?id=318 and then try to install again.

The installer says in the logs that it can't find /Library/LaunchAgents
It's strange because it's heavily used by Lion as well. Just double check that you really have that folder!

Carlo

[Carlo]

It looks to be an installation issue, please repair the disk permissions as suggested in http://www.displaylink.com/support/ticket.php?id=318 and then try to install again.

The installer says in the logs that it can't find /Library/LaunchAgents
It's strange because it's heavily used by Lion as well. Just double check that you really have that folder!

Carlo

Ops! I see you already tried the permissions bit, then I can only point to the missing LaunchAgents folder.

Carlo

[schabbelfarfar]

Thanks Carlo.

I did not have the LaunchAgents folders as you pointed out. I will create it and try to reinstall the driver 1.8 alpha.

I will repair permissions before I do the install! I'm not sure I did this the last time.

I remember spotting something about permissions in the log during the install. I think it was output from the "SecurityServer" regarding a failed attempt to do something.

I'm very greatful for your help!

Johannes

[schabbelfarfar]

The LaunchAgents folder seem to have solved the problem. I did as you said as well as repaired permissions once again after adding the LaunchAgents folder.

I thought this was a hopeless case but but no...! =)

Thank you very much for the help!

All the best

Johannes