Knowledge base

iMac (Mid 2010): DVD audio distorted on HDTV

Posted in Apple Mac OS

Symptoms

In some situations, if you connect an iMac (Mid 2010) running Windows XP using Boot Camp to an HDTV with a Mini-DisplayPort HDMI adapter, the audio coming from the HDTV may seem distorted.

Products Affected

iMac (21.5-inch, Mid 2010), iMac (27-inch, Mid 2010), Windows XP, Boot Camp

Resolution

Note: Not all Mini-DisplayPort to HDMI adapters support audio; learn more about which adapters support audio out.

Follow these steps if the audio plays but seems distorted.

  1. Download and install the ATI Catalyst Control Center from AMD's website.
  2. Start the Catalyst Control Center by right-clicking the desktop and choosing it from the menu.