My MacBook is showing a lot of colored squares/pixels on the screen when its half way booting. I can start up from recovery disk, surf safari there, use disk utility, install new system, everything is working fine. But if i boot it, then just half way the process it starts showing colored squares. I can login and work but pixels stay there. Even if i remotely take over the macbook its showing the pixels remotely, so it must be software thing, if it would be a hardware problem it would not show up on my remote screen i guess. Can anyone help me figure this out?
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Colored pixels macbook 13 inch 2011
- Thread starter leendertstruik
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Start deleting apps and rebooting until it sports itself out.
Or my preferred method do a clean install of El Capitan and then only add things back that you need if something then causes this to happen again you'll know what it is and you'll clean out any miscellaneous rubbish that's built up.
Or my preferred method do a clean install of El Capitan and then only add things back that you need if something then causes this to happen again you'll know what it is and you'll clean out any miscellaneous rubbish that's built up.
Thanks for your reply 
Well i tried to do a clean install, smc reset, pram reset, removed battery, tried different hard drives, even SSD. Tried OS X 10.8 and 10.10. Everything looks fine as long as he is installing, screen is perfect, even during half the booting process and then the screen just turns little darker, well thats normal cause it always happens and then it fails.... Any other suggestions?
Well i tried to do a clean install, smc reset, pram reset, removed battery, tried different hard drives, even SSD. Tried OS X 10.8 and 10.10. Everything looks fine as long as he is installing, screen is perfect, even during half the booting process and then the screen just turns little darker, well thats normal cause it always happens and then it fails.... Any other suggestions?
It can be hardware, the desktop being captured to send remotely was still rendered by the GPU.
WHat model is it, not actually said, does it have a DGPU?
WHat model is it, not actually said, does it have a DGPU?
Ok, but its so weird if i just install a new system or boot from recovery HD, the screen works perfectly, i can brows the web, everything is fine, just till the moment i boot the system completely...
Its an early 2011 MacBook Pro 13 inch, A1278, EMC 2419, 2,3 GHz i5.
Its an early 2011 MacBook Pro 13 inch, A1278, EMC 2419, 2,3 GHz i5.
Ok, so not a GPU switching issue certainly then.. that is certainly a little odd, it still looks like some kind of memory/gpu issue, I'm guessing that during install/recovery/early boot it's probably running the GPU unaccelerated, but when it turns acceleration/composition on it goes funny.
Ok Well thank you again. Is there anything i can do or replacing the logic board is the only option now?
Well thank you again. Is there anything i can do or replacing the logic board is the only option now?
If you don't mind it being slow, and some things potentially not fully working, you can probably find and move the GPU driver out of the system kexts folder, forcing it to use unaccelerated mode, as a short term solution.
Thank you a lot, i will google for a way how to do that, cause i have no clue at this point