Only purple lines on startup
Machine came to me and on startup had one wide purple line in the middle and no startup chime. I pulled the drive and replaced the power supply. Machine booted great off of a flash drive with Catalina installed. Ran the machine for 2 days. Ran apps, cruised the web, restarted, shutdown and started up, basically put the machine through its paces with no trouble. Picked up an SSD and installed. Now when it starts I get the chime and the wide purple line and then a bunch of thin purple lines in the middle and edges of the screen. I have unplugged and replugged the 2 display cables a number of times. I have checked the cables and sockets under magnification for damage and see none. I have wiggled the cables while the machine is running with no change. I disconnected the SSD even, no change. I tried resetting the PRAM, no change. Has anyone seen this and resolved it? Any insights are appreciated.
1件のコメント
So now after plugging in the external monitor and walking away because the monitor works and the iMac display still had the lines, I checked on it and the iMac display now works, but still has the lines. I shutdown and started back up, same story, very odd
ElectBlue さんによる