On Aug 28, 2013, at 5:36 PM, Steve Cottrell wrote: > On 28/8/13, Steve Cottrell, discombobulated, unleashed: > >> I plugged up an external display via DVI. >> >> Ext display shows desktop background - so need to turn on mirroring - >> not difficult to do despite Powerbook screen blank - keyboard shortcut >> of Command+F1... >> >> ...and up comes the desktop on the external monitor and suddenly the >> Powerbook display springs to life!! >> >> Flicked about, rebooted, all seemed well. >> >> Disconnected, closed lid to sleep. >> >> Woke it and blank screen again. Ack. >> >> Tried to repeat above steps but not springing back to life this time :-/ >> >> Looks like a wake from sleep bug. > > Not a wake from sleep bug as the computer is alive. > > Not an inverter problem as there is no desktop to see using a flashlight > on the dark screen. Not intermittent, so prolly not cable/reed switch. > > Backlight is on, dark screen but the mac is outputting 'dark' to the > screen. Logic board? could be.
Screen-brightness key on the keyboard: does that affect the situation? stan > > Strange! Still troubleshooting but bedtime beckons... > > -- > > > Cheers, > Cotty > > > ___/\__ Broadcast, Corporate, > || (O) | Web Video Production > ---------- <www.seeingeye.tv> > _____________________________ > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
