GPU iMac 27, late 2013, help needed

milkovone

macrumors newbie
Original poster
Jun 26, 2015
5
0
Hello guys,
please I have this trouble from yesterday, I don't know what was happened, but I was worked as usually in Photoshop and this happened to me.
At first few (2-3 seconds) some "ghost" shapes in type (black type goes 50/50 black and white) and after few seconds this mashup.

I restarted my computer and all, but it does the same, in all documents in photoshop.
Other apps are going good it seems.

Please can you help me? I thing its some problem maybe with GPU?

Thank you very much and have nice time,
Petr Milk
 

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keysofanxiety

macrumors G3
Nov 23, 2011
9,467
24,214
Hello guys,
please I have this trouble from yesterday, I don't know what was happened, but I was worked as usually in Photoshop and this happened to me.
At first few (2-3 seconds) some "ghost" shapes in type (black type goes 50/50 black and white) and after few seconds this mashup.

I restarted my computer and all, but it does the same, in all documents in photoshop.
Other apps are going good it seems.

Please can you help me? I thing its some problem maybe with GPU?

Thank you very much and have nice time,
Petr Milk
Definitely looks like GPU failure, it'll need a new Logic Board. Do you still have AppleCare?