Yes!  I am having the exact same problem so it is good to hear that there is someone else out there.  I don't believe that there are too many people using the dock with the baytrail DVP11 yet so maybe not too many reports of it.

In my case there is about 1/3 of the screen as blank space and then the purple line and the actual display (squished).  I also cannot get the DisplayPort to work at all.  Hooking up to HDMI monitor appears to work OK but my monitor is only DVI :-(

Here is my thread on another board (no responses:  http://forum.tabletpcreview.com/dell/59995-dock-venue-pro-11-baytrail-video-problems.html

I hope I can get the video to work properly - other than that I love this dock.

This sounds like a scaling issue potentially, although I'm not sure since you say it works fine with the 40 pin adapter.

Is your external monitor capable of supporting a 16x9 resolution?  (1920x1080, 1280x720)?    The LCD on this tablet is FHD 16x9, so if you are outputting to an external monitor that is a 16x10 or other scaling, you might get artifacts or black bars on the edge of the screen.   

Can you try using the external monitor in Second screen only mode and see if you still have the same problem or not?

Yes, the external monitor can support 16x9.  It just have a black bar at the top and bottom.  But the width is always full screen.  This doesn't explain the vertical black bar.  If it's outputting 16x9, it would have black bar at the top and bottom, not the left.  Also, what's weird is the purple line between the black bar and the rest of the screen.  One other thing to note is that, the Image looks like it's squished width wise.  It's as if it takes a 16x10 resolution and make it into a 4x3 or something like that.

I've tried using external monitor in Second screen only mode as well as duplicate and extended.  All have the same problem.

Brian - thanks for taking a look at this.

My monitor is 1920x1080 and is being detected perfectly by the OS when it is hooked up (model, resolution, etc.).  But it is having the same problem.  I have also tried a combination of mirror, extended and second screen only.  I have also tried different HDMI to DVI adapters.

Interestingly, when I try two different DELL monitors at work with HDMI > DVI (1680x1050 and 1920x1200) all I get is a black screen (I don't even get the corrupted image noted in this thread).

It does work for me if I output from the HDMI port on the dock to an HDMI input on another monitor.  However, I don't get anything when I use the DP output on the dock.

Do you have access to an HDMI > DVI adapter to try this out?

Haven't forgotten about you guys.   I'm still trying to get my hands on some additional high end monitors to test.   Will post more info when I can get them.

Thanks for the update...

I am having the blank screen issue while trying to connect to a pair of Dell P2012H monitors. Tried connecting one through both the HDMI to DVI and Displayport to DVI adapters. Both methods show the monitor in my settings, but only display as "generic PNP monitor."

Any advice would be greatly appreciated. 

Seems like the common theme is that we're converting HDMI or DisplayPort to DVI.  Is this a hardware issue with the dock or is it fixable with software?