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1. #Gfxcardstatus keeps returning to discrete only install
2. #Gfxcardstatus keeps returning to discrete only driver
3. #Gfxcardstatus keeps returning to discrete only full

The problem with this method is that the OS will switch to discrete graphics whenever you run some app that uses graphics acceleration. Quickly switch to integrated graphics using gfxCardStatus (with proper setting in System Preferences/Energy Saver). It should be using the integrated graphics. Let the Macbook Pro overheat in a blanket or closed bag in order to force an auto-shutdown.

#Gfxcardstatus keeps returning to discrete only install

Install switchGPU or a similar tool to automate step 3 below.

If you can get the display to show up using the disable-kernel-extensions method, set your account to auto-login. The only method I know that triggers the integrated graphics switch is the overheat-shutdown method.Ġ (optional).

#Gfxcardstatus keeps returning to discrete only full

When the laptop LCD is used, it stays on full brightness and does not turn off when the lid is closed. The internal LCD is treated as an external monitor, with only one possible resolution: the maximum display resolution (1440x900 or 1680x1050). The defects are present at the boot time. However there is no graphic acceleration.Įxisting or new graphics defects(blue or pink bars/lines, jagged/out-of-order image, noise, etc.) will show up as temperature fluctuates (running GPU at high temp, power on/off, etc.), presumably due to the lead-free solder problem.

Here is what happens after disabling the AMD/ATI extensions: Same GPU is being used, just not at its full capacity. This is akin to seeing the "640x480 VGA" standard display mode on Windows back in the day whenever it cannot load the proprietary GPU driver.

#Gfxcardstatus keeps returning to discrete only driver

All that does is running the discrete chip with a fallback driver with no graphic acceleration. It's a misconception in all the fixes/instructions out there.

Here are the specs: Processor: 2 GHz Intel Core i7 Memory: 4 GB 1333 MHz DDR3 Graphics: AMD Radeon HD 6490M 256 MB Software: OS X 10.9.5 (13F34)ĭisabling the ATI/AMD kernel extensions will not force the OS to switch to the Intel integrated graphics. The apple customer service says that they don't have an "official" procedure to disable the discrete graphics card.

I have installed gfxCardStatus v2.2.1 which shows that I am running on the discrete graphics card and there is no chance to switch to integrated one.Įven though I can see that the HD3000 Extension is loaded:ġ10 0 0xffffff7f837dc000 0圆2000 0圆2000 3000Graphics (8.2.4) Under "Settings > Monitor" shows that the computer is attached to an external monitor. I can't change the brightness of the screen, the color calibration is different. $ mv /Library/Extensions/AMD* /DisabledExtensions/Īfter that the Mac boot up in Mavericks but I have no graphic acceleration whatsoever, every animation is very slow. I have been able to access the system by running these commands in "Single User Mode": $ mkdir /DisabledExtensions Hopefully waiting for an Apple replacement program I want to disable the discrete graphics and enable only the Intel HD3000 chip in the i7. I have an early 2011 MacBook Pro that is affected by the well known problem on the graphics card (AMD 6490M 256MB).