Unfortnately no. AMD driver consolidates itself, regardless of interface, as AMD High Definition Audio device. It switches itself to HDMI and DP automatically base on order of interface detected and acts as a single audio device. There is no options in software to alter this behavior.
I was hoping somewhere in Dell monitor I can disable the audio so that the EDID information transmitted over one of the interface will not have audio support specified, which may overcome the issue. But as far as I can see there is none.
So if you go into the U2711 OSD (On Screen Display) - Audio and force it to HDMI, then power all three off (monitor, PC, AV receiver), then power the PC on first, monitor second, and AV receiver third, the monitor automatically changes its Audio setting from HDMI to DP. Is that correct?
If yes, why not power them on in this order (AV receiver, PC, monitor) ?
Firstly, there is no point of choosing between HDMI and DP audio in the monitor, as I don't use my monitor audio out. Choosing between them do not affect the behvaior of the audio driver. It's not the monitor which is changing audio source, it's the AMD HD audio driver.
The only solution is to power on in the correct order, which I have been doing. But every once in a while I forget. I don't get used to doing it since sometime I leave the AV receiver due to the profile resetting everytime I do so (I have to reenable the AV receiver as a display in control panel by duplicating a desktop onto it if turned off, otherwise no audio) and therefore I only have to turn on monitor.
The root cause lies in the fact that U2711 broadcasts EDID to both DP and HDMI saying it's capable as audio sink I wish there are ways to change EDID behavior.
DELL-Chris M
Community Manager
•
56.9K Posts
0
August 12th, 2011 06:00
Have you looked in the Device Manager for a listing for U2711 DP Audio? If you see it, can you simply right click and disable (not delete) it?
Mobius Pizza
1 Rookie
•
9 Posts
0
August 12th, 2011 06:00
Unfortnately no. AMD driver consolidates itself, regardless of interface, as AMD High Definition Audio device. It switches itself to HDMI and DP automatically base on order of interface detected and acts as a single audio device. There is no options in software to alter this behavior.
I was hoping somewhere in Dell monitor I can disable the audio so that the EDID information transmitted over one of the interface will not have audio support specified, which may overcome the issue. But as far as I can see there is none.
DELL-Chris M
Community Manager
•
56.9K Posts
0
August 12th, 2011 09:00
So if you go into the U2711 OSD (On Screen Display) - Audio and force it to HDMI, then power all three off (monitor, PC, AV receiver), then power the PC on first, monitor second, and AV receiver third, the monitor automatically changes its Audio setting from HDMI to DP. Is that correct?
If yes, why not power them on in this order (AV receiver, PC, monitor) ?
Mobius Pizza
1 Rookie
•
9 Posts
1
August 12th, 2011 09:00
Firstly, there is no point of choosing between HDMI and DP audio in the monitor, as I don't use my monitor audio out. Choosing between them do not affect the behvaior of the audio driver. It's not the monitor which is changing audio source, it's the AMD HD audio driver.
The only solution is to power on in the correct order, which I have been doing. But every once in a while I forget. I don't get used to doing it since sometime I leave the AV receiver due to the profile resetting everytime I do so (I have to reenable the AV receiver as a display in control panel by duplicating a desktop onto it if turned off, otherwise no audio) and therefore I only have to turn on monitor.
The root cause lies in the fact that U2711 broadcasts EDID to both DP and HDMI saying it's capable as audio sink I wish there are ways to change EDID behavior.