Hello,
I have a strange problem with a Macbook 15" 820-2915-B
On the LCD I have strange vertical lines, as, 1 line is ok, 1 is black, 1 ok, 1 black, like an old TV
I expect the GMUX, but I want to be sure.
When I attach a external screen, the image is ok.
I tried the LCD screen on another logicboard and the picture was just fine, I also tried this board on another screen and I got the same result.
I installed gfxStatus, when I switch GPU's nothing happens, the program reports the AMD is in use, but I do not see any flickering or change in the screen as is there is nothing happening.
Did anyone had this problem before?
thanks in advance
I have a strange problem with a Macbook 15" 820-2915-B
On the LCD I have strange vertical lines, as, 1 line is ok, 1 is black, 1 ok, 1 black, like an old TV
I expect the GMUX, but I want to be sure.
When I attach a external screen, the image is ok.
I tried the LCD screen on another logicboard and the picture was just fine, I also tried this board on another screen and I got the same result.
I installed gfxStatus, when I switch GPU's nothing happens, the program reports the AMD is in use, but I do not see any flickering or change in the screen as is there is nothing happening.
Did anyone had this problem before?
thanks in advance
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