Follow this guide and increase your 2D clocks to 500MHz: http://www.techpowerup.com/forums/showthread.php?t=117633
I'm having an issue with the latest drivers in which HDMI audio intermittently cuts off during video and music playback. However, audio plays just fine for video games. Additionally, the issue doesn't arise until I either restart or wake up from sleep after installing the drivers. I've reinstalled a few times and the issue is there even with the 12.7 Beta Drivers.
I've made sure the correct default device is selected (audio for games plays correctly) and have the latest ATI drivers for HDMI (12.8). I guess I could update the Realtek drivers but last time it made it worse by not even showing the audio output device under Sound Devices (might be fixed in latest version, I will give it a try later today).
I'm connected to a receiver (which isn't the problem as it happens too when connected straight to the TV and game audio works fine) that displays a Dolby Digital symbol when HDMI Audio is connected and I can see it blinking every second or so when the issue happens.
I was just wondering if anyone here has run into this issue and has found a way to fix it. Thanks!Edit:
Is there a way to rollback only the HDMI Drivers in the ATI Catalyst Package? I know I can go to Custom and uninstall them alone, but going into Custom when installing forces me to install most of everything (including the drivers). I was hoping installing the HDMI Drivers included in 12.4 would fix the issue, as those were working for me. Also, what happens if I uninstall the HDMI Drivers and don't reinstall?