Lenovo LT1421 Shows Blank Screen on Mac

[rlutwak]

I think that I have the same problem as the other posters. I have a brand new MacBook Air 13" running OsX 10.8.4 and just purchased a USB3.0-DVI adapter from StarTech (USB32DVI). I installed the latest 2.0 drivers from DisplayLink but there is no sign of anything appearing on the screen or in System Preferences.
I've run the Disk Utility permissions fix and reinstalled the drivers.
I have confirmed the existence of the Displaylink files in /Library and also the existence of the daemon in ps:
new-host-4:LaunchAgents rlutwak$ ps
PID TTY TIME CMD
282 ttys000 0:00.02 -bash
new-host-4:LaunchAgents rlutwak$ ps ax | grep Display
75 ?? Ss 0:02.55 /Library/PrivilegedHelperTools/DisplayLink/DisplayLinkManager
230 ?? S 0:04.73 /Library/PrivilegedHelperTools/DisplayLink/DisplayLinkUserAgent
294 s000 S+ 0:00.00 grep Display

How do I know that my hardware isn't defective?

[shockwave562]

Originally Posted by rlutwak

I think that I have the same problem as the other posters. I have a brand new MacBook Air 13" running OsX 10.8.4 and just purchased a USB3.0-DVI adapter from StarTech (USB32DVI). I installed the latest 2.0 drivers from DisplayLink but there is no sign of anything appearing on the screen or in System Preferences.
I've run the Disk Utility permissions fix and reinstalled the drivers.
I have confirmed the existence of the Displaylink files in /Library and also the existence of the daemon in ps:
new-host-4:LaunchAgents rlutwak$ ps
PID TTY TIME CMD
282 ttys000 0:00.02 -bash
new-host-4:LaunchAgents rlutwak$ ps ax | grep Display
75 ?? Ss 0:02.55 /Library/PrivilegedHelperTools/DisplayLink/DisplayLinkManager
230 ?? S 0:04.73 /Library/PrivilegedHelperTools/DisplayLink/DisplayLinkUserAgent
294 s000 S+ 0:00.00 grep Display

How do I know that my hardware isn't defective?

I think you're in the same boat I am. My screen has been blank ever since I installed MAC OSX 10.8.4. I've tried several HP monitors and I've even tried two different HP Display link adapters with no luck on my Mac. Both work fine on Windows, blank screen on Mac.

[shockwave562]

Originally Posted by rlutwak

I think that I have the same problem as the other posters. I have a brand new MacBook Air 13" running OsX 10.8.4 and just purchased a USB3.0-DVI adapter from StarTech (USB32DVI). I installed the latest 2.0 drivers from DisplayLink but there is no sign of anything appearing on the screen or in System Preferences.
I've run the Disk Utility permissions fix and reinstalled the drivers.
I have confirmed the existence of the Displaylink files in /Library and also the existence of the daemon in ps:
new-host-4:LaunchAgents rlutwak$ ps
PID TTY TIME CMD
282 ttys000 0:00.02 -bash
new-host-4:LaunchAgents rlutwak$ ps ax | grep Display
75 ?? Ss 0:02.55 /Library/PrivilegedHelperTools/DisplayLink/DisplayLinkManager
230 ?? S 0:04.73 /Library/PrivilegedHelperTools/DisplayLink/DisplayLinkUserAgent
294 s000 S+ 0:00.00 grep Display

How do I know that my hardware isn't defective?

Great news! I may found the fix here for you if you're running 10.8.4:

http://www.displaylink.org/forum/sho...0705#post70705

Basically go in to disk utility and click repair permissions on your HDD, restart, and you should be good to go.