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asg62 · 08-06-2026, 08:16 PM

Attached and activatied tri-screen 3 on a mac pro 17 laptop . The second (left) screen does not come on and sayd NO SIGNAL and goes blank

The right screen works

Any help appreciated . already reattached the mac adapter, no change

08-06-2026, 08:16 PM	#1
asg62 Junior Member Join Date: Aug 2026 Posts: 1	second screen blank Attached and activatied tri-screen 3 on a mac pro 17 laptop . The second (left) screen does not come on and sayd NO SIGNAL and goes blank The right screen works Any help appreciated . already reattached the mac adapter, no change