Has anyone ever encountered trails/artifacts as in the picture while playing SC2?
I've tried other 3D apps on the machine such as Portal2 — That worked just fine.
Wondering if anyone has encountered this before and if so how it was resolved.
Additional info:
Hardware Overview:
Model Name: iMac
Model Identifier: iMac11,3
Processor Name: Intel Core i5
Processor Speed: 2.8 GHz
Number Of Processors: 1
Total Number Of Cores: 4
L2 Cache (per core): 256 KB
L3 Cache: 8 MB
Memory: 4 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: IM112.0057.B00
SMC Version (system): 1.59f2
ATI Radeon HD 5750:
Chipset Model: ATI Radeon HD 5750
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 1024 MB
Vendor: ATI (0x1002)
Device ID: 0x68a1
Revision ID: 0x0000
ROM Revision: 113-B9710C-238
EFI Driver Version: 01.00.417
Displays:
iMac:
Resolution: 2560 x 1440
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes
Connection Type: DisplayPort
Display Connector:
Status: No Display Connected
Best Answer
Typically artifacting of this nature occurs when a GPU is either damaged or not cooled properly. If the GPU is still artifacting after providing substantial cooling improvements then it is probably irreparably damaged.
Heres what you can do:
If your laptop actually has vents on it blow it out with compressed air. Dust in a heat sink will always reduce it's ability to dissipate heat.
Get a laptop cooling stand/dock. Typically you can spend $30-$70 and see great improvements simply from helping your laptop cool better.
If you are technically inclined, or know someone who is, you can replace the thermal compound on the GPU. This is not something you should do if you do not know how to do it, as things can very easily go wrong.
Have you contacted Apple? (You probably should)