Safe mode runs a number of checks on the system and makes corrections as it finds them. (A helpful tool for knowing the temps inside my Imac is the Tunebelly Temperature Gauge app which reports the temp numbers right into the dashboard strip at the top of the screen, right hand side.) Back to list Boot in Safe Mode But, a couple of weeks later the problem returned. This seemed to help, because the black-outs stopped. I got a small Vornado fan and set it up to blow along the bottom of the screen of my IMAC, thinking the air circulation might help the bottom air vents beneath the screen to receive cooling air. I began wondering if the issue might be related to heat, since my office is in a building which faces a very direct shot from the sun, and the room can get well above normal temps during peak summer months, which was when my problem first cropped up (ever hold your hand above the top vents above your IMAC screen? It can be quite hot). This was only a temporary help, though, because the "blackouts" began to happen more frequently and I had to find a "real" solution.
This was a temporary help as it allowed me to get my screen back sooner by having only a 3 minute sleep mode to sit through before waking the machine up with a mouse or keyboard tap. When the unexpected black outs repeated, though, waiting 15 minutes to "wake up" the machine was eating up large amounts of time, so I set the "Energy Saver" mode to 3 minutes. My setting was originally to put the machine to sleep after 15 minutes of non-use. When the screen began blacking out on me unexpectedly, but I realized I could get it to return by "waking up" the machine by waiting long enough, I surmised the problem was that the "Energy Saver" mode in the System Preference had gone haywire.
Looking further: other possible solutions.My long-term solution - stopping heat buildup.Topics on this page for solving iMac monitor going black: I would eventually get the screen to come back when the iMac "woke back up" but as this issue began to repeat more frequently, I had to find a solution.
My 27" Imac began to unexpectedly go to sleep mode all by itself, often right in the middle of typing a sentence or clicking on a program function. Updated with new information June 2020 Your Imac screen suddenly goes black on it's own.
0 kommentar(er)
