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Display Driver ATIKMDAG stopped responding and has recovered

Last response: in Graphics & Displays
August 25, 2010 6:42:17 AM

Hello everyone,

Recently, I've been getting this notification about my display driver ATIKMDAG stopped responding and has recovered. I'm running a Vista OS and my computer is a QuadCore. Whenever I try to launch applications such as games and sometimes even iTunes, my computer freezes with a black/grey screen and I have to off my computer with the power button. My graphic card is an ATI Radeon HD5770 1024MB.

Can someone please help me?
a c 189 U Graphics card
August 25, 2010 10:56:43 AM

Did you installed the proper driver for your card?
Download the latest driver on ATI site:
choose your OS and type of your card there, download it and install it...
make sure you remove(uninstall) previous driver before installing the new one...
a c 169 U Graphics card
August 25, 2010 11:21:39 AM

Hello and welcome to the forums
I always recommend installing the latest drivers but not this time,because many users found 10.7 unstable and buggy so try an older driver like Catalyst 10.5, do a clean install of it,here is how
1_Download and install "Driver sweeper" from and install
2_Go to add/remove programs and uninstall the driver and reboot
3_Boot to safe mode and open driver sweeper,then click on ATI and then click on clean
4_Reboot and boot normally to windows and install the new drivers after that you need to restart,and its done

Also try disabling Windows Aero and see if it helps.
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