DisplayLink Driver causes problem with MBP Display

[feardamhan]

Hello All

I tried installing the latest beta driver on my 10.6.4 machine, and was having issues initially. At first one of my two USB external monitors was blinking. I since discovered this to be a power problem through the USB hub. However, in the interim I downgraded to the latest released driver to attempt to solve that problem. After figuring out that it was a power issue, I installed the beta driver again.

Now, however it left my a problem whereby my external monitors would work, but when I booted my MBP on its own, the internal display no longer worked (it was simply a screen of horizontal blue lines). Since I had only just installed the MBP I didnt have a Time Machine backup yet.....so I had to reinstall again.

Now I am concerned that installing the displaylink drivers will set me back to square one.

Anyone see this issue before? Or have any recommendations? Obviously I will be taking a TM backup before installing anything this time around :-)

Thanks
Ken

[feardamhan]

I think I may have found the answer to my own question.....found this in the release notes.....which I should have read sooner :-)

The primary screen becomes corrupted or other issues are seen when using the DisplayLink Mac driver on Core i5/i7 systems.
Disabling of automatic graphics switching can help working around this issue.

Assuming the primary display refers to the internal display, and not to the first external display, then I guess this is the problem. I would disable automatic graphics switching, except that this would mean my battery life would be slashed....I guess I will just have to wait!

[Rynow]

same problem but my MBP on 10.6.5 has no automatic graphics switching option in energy saver.

however my displays both blink all weird and then recover.

any ideas?

R