Black screen, but fan and Magsafe operational, PSU pinout tested OKAll right, so I bought a dead Thunderbolt display 27” (for 7 EUR) and I want to fix it and would appreciate any help or...
Respuesta a "Display flickers briefly then goes black after connecting mini dp"I have the exact same error, but it's intermittent and the problem mostly arises after power has been entirely disconnected from the display, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display, it will often start up again. When I get the flicker problem, sometimes one of two things helps to get it running again: (1) Connect it to a laptop and adjust the brightness setting of the Cinema Display. Results may not be instant, and doesn't always work but often does. You can try to lower it, then crank it up to max. (Note: the USB cable needs to be connected for the brightness setting to appear) (2) Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me. (3) Connected to a Mac mini that can be forced turned off, the display sometimes comes alive when cold starting the Mini again (this seems to give the display a different type of signal than when the computer sleeps and then wakes up) At...