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 (but the display has power from the outlet), it will often start up again.
+
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:
-
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
+
* 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)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
-
* 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)
+
* 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 this point, I'm considering
* Changing the logic board (around 120-200 EUR on eBay)
* Getting a new Backlight WLED driver like @danj suggested
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR on eBay.
-
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged and suddenly (and temporarily) go bad as to shut off the backlight.
+
* Possibly buying a new Function and/or Backlight cable (internal cables) although it seems unlikely it would be damaged and suddenly (and temporarily) go bad as to shut off the backlight.
I have the exact same error, but it's intermittent and the problem mostly arises after power has been entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will often start up again.
+
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 (but the display has power from the outlet), it will often start up again.
When I get the flicker problem, sometimes one of two things helps to get it running again:
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
* 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)
At this point, I'm considering
* Changing the logic board (around 120-200 EUR on eBay)
* Getting a new Backlight WLED driver like @danj suggested
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR on eBay.
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged and suddenly (and temporarily) go bad as to shut off the backlight.
I have the exact same error, but it's intermittent and the problem mostly arises when power is entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will often start up again.
+
I have the exact same error, but it's intermittent and the problem mostly arises after power has been entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will often start up again.
When I get the flicker problem, sometimes one of two things helps to get it running again:
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
* 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)
-
Problem for me is I'm trying to fix it for a friend who moves it around all the time, so it's problematic for him that it goes black after disconnecting it.
-
At this point, I'm considering
* Changing the logic board (around 120-200 EUR on eBay)
* Getting a new Backlight WLED driver like @danj suggested
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR on eBay.
-
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged
+
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged and suddenly (and temporarily) go bad as to shut off the backlight.
I have the exact same error, but it's intermittent and the problem arises when power is entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will start up again.
+
I have the exact same error, but it's intermittent and the problem mostly arises when power is entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will often start up again.
-
When I get the flicker problem, usually one of two things helps to get it running again:
+
When I get the flicker problem, sometimes one of two things helps to get it running again:
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
+
* 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)
Problem for me is I'm trying to fix it for a friend who moves it around all the time, so it's problematic for him that it goes black after disconnecting it.
At this point, I'm considering
* Changing the logic board (around 120-200 EUR on eBay)
* Getting a new Backlight WLED driver like @danj suggested
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR on eBay.
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged
I have the exact same error, but it's intermittent and the problem arises when power is entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will start up again.
When I get the flicker problem, usually one of two things helps to get it running again:
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
Problem for me is I'm trying to fix it for a friend who moves it around all the time, so it's problematic for him that it goes black after disconnecting it.
At this point, I'm considering
* Changing the logic board (around 120-200 EUR on eBay)
-
* Getting a new Backlight WLED driver like @danj suggested – although, can I buy that separately or what part do I buy?
+
* Getting a new Backlight WLED driver like @danj suggested
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR on eBay.
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged
I have the exact same error, but it's intermittent and the problem arises when power is entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will start up again.
When I get the flicker problem, usually one of two things helps to get it running again:
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
Problem for me is I'm trying to fix it for a friend who moves it around all the time, so it's problematic for him that it goes black after disconnecting it.
At this point, I'm considering
-
* Changing the logic board
-
* Getting a new Backlight WLED driver like @danj suggested
-
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR.
+
* Changing the logic board (around 120-200 EUR on eBay)
+
* Getting a new Backlight WLED driver like @danj suggested – although, can I buy that separately or what part do I buy?
+
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR on eBay.
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged
I have the exact same error, but it's intermittent and the problem arises when power is entirely disconnected, i e disconnecting the power cable or switching an outlet off. As long as the computer just sleeps the display (but the display has power from the outlet), it will start up again.
When I get the flicker problem, usually one of two things helps to get it running again:
* 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. (Take note: the USB cable needs to be connected for the brightness setting to appear)
* Like @janoslinde has done, connect it to an outlet with a powerswitch and try to power cycle it there. Often works for me.
Problem for me is I'm trying to fix it for a friend who moves it around all the time, so it's problematic for him that it goes black after disconnecting it.
At this point, I'm considering
* Changing the logic board
* Getting a new Backlight WLED driver like @danj suggested
* Changing the power supply (although multimeter reading shows it gives 24V, 12V, 5V, 3.3V just like it should). However it may be unstable, maybe some of the condensators bad? Costs around 100 EUR.
* Possibly buying a new Function cable (internal cable) although it seems unlikely it would be damaged