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Old 09-25-2009, 12:12 PM   #7
Patrick
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Join Date: Aug 2009
Location: Munich
Posts: 57
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Quote:
Originally Posted by SpyderZ View Post
Q. Does it work with just one additional display connected ?

A. No. Same issues still exist, even with one display connected.

Q. The USB Hub you are using was connected to the system with your sleep test without the DL driver right ?

A. I do not have a USB Hub with my setup. I plug directly into the Mac Pro. When I uninstalled the driver and disconnected the displays and only used the two displays on the graphics card, everything operated properly. Sleep, screen power saving, reset, shutdown, etc. I still had other USB devices, the external hard drive, and Wacom tablet hooked up still when doing this.


Q. Does the system go to sleep without the DL driver installed but the monitors attached ?

A. No. The system attempts to go to sleep, but only makes it half way like usual. I have to hard reset the machine to get back into it. The fans stay on and the power LED does not pulsate like it would while in full sleep mode.

I guess reproducing this error with the screens plugged in and driver uninstalled would indicate a hardware conflict of sorts. What now?
Thanx for your tests, as you guessed it sounds like the USB chips in the displays do not work correctly to the spec.
I'll ask around if somebody at DL is already aware of this issue with the LG displays.

Regards Patrick aka Jolly
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