Sound on sp-dif & line out at the same time

Hi,
I'm new here so please bare with me. I've just bought a new computer with PCI Express X-Fi Xtreme Audio installed. I'm using the line out connections for a set of 5. speakers surrounding the computer and the digital out SP/DIF optical output going into the room next door connected to my main amp and speakers. The problem is that I can't get the SP/DIF output to work unless I physically unplug the line out connections from the back of the computer. I want to be able to use both at teh same time.
I've looked at previous postings on this issue and the nearest I can find is from several years ago and I'm not sure of the applicability to my soundcard. Grateful for any help with this.
Many thanks,
Mark?

. Varies according the the specific product. I'm familiar with the PCI SBLi've/SBAudigy cards. The pre-5. SBLi've models had both acti've, but they might not have the same audio mix if the "Digital Output Only" setting is disabled. Digital outputs on Li'veDri'ves, Digital I/O addon cards generally had corresponding behavior. The SBLi've 5. and SBAudigy models are either/or because the digital jack is dual-purpose. Other digital outputs (Li'veDri've, AudigyDri've, etc.) are generally always on. SBAudigy2 and later have dedicated digital outs which are always-on as well (other than being muted for high-resolution DVD-Audio). Gi'ven your second question, though, it should be noted that the master volume control applies to both digital and analog outputs equally, so this is _not_ a way to get two outputs with separate volume control.
2. The master volume slider operates digitally before the conversion to analog, so no.
3. Not impossible in theory, but probably not very practical.
Is it possible to reveal your goal because it would help to understand what you want to accomplish by this? It sounds like you want 2 identical outputs whose volume you can control separately. If I were trying to have that, I'd just use a splitter cable/adapter on the line out and send these to somethings that each have their own volume control. Since the software volume control is digital, I avoid using it, actually. I run all my volume controls full up and control volume externally. That tends to do a better job of maintaining SNR performance.
-Dave
[email protected]

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