Boot Camp 4.0 - Atikmdag.sys crash

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Boot Camp 4.0 - Atikmdag.sys crash

Hi all,

I've got a BIG problem with Boot Camp 4.0 ATI driver.

I use a mac mini mid-2011 plugged to a Iiyama PLB2403WS monitor with a HDMI cable. That screen can display 1920x1200 mode.

When I boot the system on Mac OS X Lion, it works perfectly.

After using Boot Camp 4.0 to install Windows 7, the first boot worked well. I had no Aero effects.

But, when I installed Boot Camp Windows support drivers, it did not work anymore.

ATI drivers are guilty because it makes Windows 7 crash at each startup.

I get the famous BSOD displaying the filename Atikmdag.sys with error "PAGE_FAULT_IN_NON_PAGED_AREA".

I guess Apple and AMD must fix the ATI driver for the graphic chip "AMD Radeon 6630M".

When i plug the mac mini on my Samsung HDMI TV, it works great, Windows starts without crashing and i get the Aero effects.

And then when i plug it back to the Iiyama monitor, Windows crashes.

It's confusing and frustrating as I'm not willing to use my TV as the mac mini's monitor display.

Is there any way to make Apple or AMD fix that ?

Or has anyone of you succeeded in using same hardware than me ?

Thanks for your help !

Mac mini, Windows 7, ATI drivers

Posted on Oct 19, 2011 2:21 PM

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Answer 1

The hatter

Level 9

61,031 points

Oct 19, 2011 2:55 PM in response to yannick239

latest AMD beta use Driver Sweeper 3.x+ if you want, Nvidia has option to remove all prior drivers. Not sure about ATIs.

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Answer 2

yannick239 Author

Level 1

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Nov 2, 2011 5:39 PM in response to The hatter

Well I found out by my own a way to overcome this problem 🙂

Here is the process to do under windows 7:

1. Install Bootcamp drivers

2. Windows 7 restarts the computer

3. Blue Screen Of Death and the computer automatically restarts...

4. At the restart, press and hold ALT key for boot selection. Choose Windows and then press F8 and then choose Safe Mode with Network activated

5. Go to C:\Windows\System32\drivers and rename atikmdag.sys to atikmdag.sys.old

6. Download latest AMD Radeon Mobility driver for the graphic card (mine is AMD Radeon 6xxxM series)

7. Install the driver

8. Restart the computer

9. Optional : delete file C:\Windows\System32\drivers\atikmdag.sys.old

It works ! You get the Aero effects, no more crash. 🙂

My mistake was uninstalling bootcamp's graphical driver beforetrying to install AMD's official drivers (that couldn't detect/recognize the hardware).

But if you don't uninstall bootcamp's graphics drivers, then use the official and latest AMD driver it detects the hardware and you can install the up-to-date driver that works.

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